Satellite imagery API | Part 2 - How to get an image of your polygon in PNG format?

Satellite imagery API | Part 2 - How to get an image of your polygon in PNG format?

 Satellite imagery API allows you to get a processed image from the satellite of your polygon 

Satellite imagery API | Part 1- Why Satellite imagery API? How to work with Satellite imagery API?

Satellite imagery API | Part 1- Why Satellite imagery API? How to work with Satellite imagery API?

It was not easy to work with satellite imagery and use them in applications. You had to have deep expertise in the satellite imagery area and have access to massive computing capacity. Fortunately, now these data are available in a much easier way through our APIs.

Query Builder Palette

Query Builder Palette

When you work with single-channel images, you need to focus in depth on a narrow range of values and clearly evaluate researched data.

How to get free satellite imagery from Sentinel-2

How to get free satellite imagery from Sentinel-2

If you want to download Sentinel-2 satellite data, then you’ve come to the right place! Our Satellite Images API was created exactly for this purpose.

Dive into Agro API  |  Part 2 - Polygons

Dive into Agro API | Part 2 - Polygons

This article is a step-by-step description of of how to work with polygons using our instruments QueryBuilder and Agro API. The previous part explained to you how to use your personal account of the OpenWeather company, be sure to use it before starting to read this article.

How do we process satellite imagery so that customer can operate with Ready-to-use Data

How do we process satellite imagery so that customer can operate with Ready-to-use Data

1) Satellite data search.
1.1. Selection of suppliers or distributors of satellite data.
1.2. Data search in archives. Search is based on the following criteria: - date of satellite imagery, percent of cloud coverage, type of satellite imagery system, level of data preprocessing, geographical area of interest (AOI).

In the OpenWeather office is always good weather!

In the OpenWeather office is always good weather!

While the whole of Europe suffers from abnormal heat, our team held teambuilding in our Riga office. This event was very productivity and invigorating. Besides, just meeting with colleagues is great thing!

Dive into Agro API | Part 1 - Personal Account

Dive into Agro API | Part 1 - Personal Account

This April, the OpenWeather company presented a brand new product, Agro API, which was intended to change the working process of agricultural applications. Our algorithms for collecting and processing satellite scenes and weather data combined with the simplified delivery of prepared products to the end user make this product wholly unique and convenient.

A couple of weeks ago, the OpenWeather team visited the GEO Business 2018 event

A couple of weeks ago, the OpenWeather team visited the GEO Business 2018 event

 A couple of weeks ago, the OpenWeather team visited the GEO Business 2018 event at the Business Design Centre in London. As promised, we will share our impressions with you.
The exhibition had an excellent programme that included practical demonstrations of the latest research and workshops on the use of services and technology in action. We were particularly interested in the Earth Observation and Satellite Applications seminar. One of the presentations was about the use of satellite image recognition technologies to track the construction phase.

The fundamentals specific to the market are that satellite data is provided mostly for global territories and enterprises, and there are quite a few, if any, solutions for giving data for small customers.
We are happy to say that our service, Agro API , can provide satellite data for any size of customer, with on-the-fly data processing and availability. It is an intuitive, fast, and robust API to satellite imagery that is suitable for use in applications in either a large area or a small field. We provide the most useful tools for empowering applications for farmers and machine learning. There are so many spheres where environmental data is needed nowadays, and agricultural applications are among them.

The OpenWeather team visited GEO Business Show 2018

The OpenWeather team visited GEO Business Show 2018

The OpenWeather team visited GEO Business Show 2018  in London on 22–23 May. The show is an international exhibition for the geospatial industry that provides an excellent opportunity to communicate with experts and enthusiasts in the area of geospatial and satellite technologies, listen to nearly 200 speakers skilled in working with spatial data, and meet new companies of the industry.

We were delighted to explore stands of exhibitors who demonstrated new capabilities for the gathering, storing, processing, and delivery of satellite data. We were also thrilled to meet and talk face-to-face with exhibitors who already use our weather and other geodata in their applications.

There was a great event programme that included demonstrations, workshops, and speeches. Describing all of the impressions at once is difficult, so please stay tuned for more details.

We will share practical cases and photos in the next post.

Satellite Images API for Agriculture: NDVI, EVI, TRUE and FALSE color

Satellite Images API for Agriculture: NDVI, EVI, TRUE and FALSE color

 Satellite images API on the basis of which we calculate quantitative indices, such as NDVI, EVI, and others, and from which we also obtain ready-made images of territories in True and False color, NDVI, and EVI , along with other APIs to data such as Weather Data, Soil Data, Accumulated Temperature and Precipitation Data all go into making our new Agro API product.

TRUE Color and False Color

TRUE Color — "True color" is a rendering of red, green and blue satellite imagery spectral bands to the RGB composite image that seems to look natural.

False Color (b5 b4 b3) — "False color" is a rendering using NIR (near infrared) band which is more useful to visualize land cover and differentiate it from the urban and farmland areas. In these images it is possible to pick out different types of vegetation. Also easily discernible is the boundary between land and water, which enables changes in shorelines to be tracked.


NDVI and EVI vegetation indices

Some of the most common indices enabling quantitative assessment of vegetation cover. Convenient for tracking the growth rate of plants and monitoring any changes to them.

NDVI - This is an index calculated according to a set formula which uses near infrared and red wavelengths. Used in calculating and monitoring vegetation growth and its dynamics. NDV Index is displayed in images using the white to green palette where dark green indicates a good yield and white indicates a poor one or lack of vegetation.

EVI  -  In areas of the dense canopy where the Leaf Area Index (LAI) is high, NDVI values can be improved using information from the blue wavelength. Information in this part of the spectrum can help correct atmospheric influences and background interference caused by soil.

Satellite images API

Satellite images API

Today, we would like to look in more detail at one of the essential elements of our Agro API, Satellite images API. Satellite images API is the dataset from the Landsat 8 and Sentinel 2 satellites on the basis of which we calculate quantitative indices, such as NDVI, EVI, and others, and from which we also obtain ready-made images of territories in TRUE and False color, NDVI, and EVI

We provide a historical data as well as satellite images that are as up-to-date as possible (allowing for the data source and cloud cover) for the very nearest time period. These satellite images are available to all account users, including those who are using the free package. For non-paying users, the range for satellite data requests is 6 days.  For the paid service, it is one year.  Learn more.

Please note that there are limitations on the total area for which data can be requested as well as the number of requests that can be made per minute. However, should you exceed these figures, we will continue to provide you with the data you need so that your work is not affected and your customers do not run and hide!*

All of the details and the full set of the Agro API capabilities can be viewed here.
As always, we would be glad to hear your remarks and suggestions regarding our product!

* At the end of your billing month, we will provide you with a separate bill for any additional area, beyond the tariff limits, for which you requested data.

Helping farmers manage their enterprises: weather and satellite APIs for agroservices

Helping farmers manage their enterprises: weather and satellite APIs for agroservices

Objectives:
As farms mainly consist of crop fields, which can be hundreds of acres in size, much time and resources are demanded of farmers in obtaining an accurate picture of the overall condition of these farms.
Drying out of plants or, conversely, an excess of moisture and a rise in the number of pests: these can all take their toll on the size and quality of the harvest and demand a rapid response. There are also such problems as the danger of overusing fertilizers, which poses a threat not only in terms of extra costs but also in that it is harmful to the environment and primarily to the health of farmers themselves.
To maximize harvests, constant monitoring is required throughout the season; and it is not easy finding the time to keep up with changes for each crop, not to mention monitoring the condition of every single acre. When deciding on long-term plans, a comparative analysis has to be carried out for both the usual course of the seasonal cycle and, in particular, any crises that have arisen.
To assess the current situation and to keep track of changes compared with preceding seasons and with the condition of neighboring fields, accurate information on both the past and the present is needed as well as future forecasts that are as precise as possible.

Solutions:
There are currently numerous services that help with managing farms for any acreage: checking boundaries and nutrient and moisture intake, monitoring the negative effects of weather conditions and diseases, and controlling pest numbers. And this can all be done without having to visit the fields, just by using a phone or tablet screen or a PC.

It is exactly to provide these services that OpenWeather offers a wide range of APIs for different weather and satellite data combined in the one product, Agro API, with universal and simple syntax.

NEW! Agro API - service for Agriculture

NEW! Agro API - service for Agriculture

OpenWeatherMap team are pleased to announce that we are launching a new product aimed primarily at specialists developing agricultural services and addressing the specific requirements of this sector. This product is also geared toward the insurance and banking sector and can be used as a farm rating tool.

As part of this product, we are providing an API for receiving weather data (current weather, forecasts and history), satellite data (current and historical) and weather and vegetation indices based upon this.  As well as the data we already provide in other products, here we have added specialized agricultural indices such as soil temperature and moisture, accumulated temperature, cumulative precipitation and satellite data*: images from space and vegetation indices (EVI and NDVI) based upon them. Weather data can be requested both for a particular point and for a polygon. Find out more here.
We are offering you the chance to try out our free package. All you have to do is set up a user account** and you will receive a personal API key.

We have also put together paid services as part of which the user is provided with a wider range of functions, which you can find out about here

* Currently, as part of the existing paid packages, we are providing data that is of the utmost relevance to agribusiness. Other territories can be added upon request.
** Users who are already registered can use their username and password for their new account

We look forward to your feedback and comments! We will be glad to answer any questions you might have.

Temperature and Soil Moisture. Their Interaction and Effect on Plant Growth

Temperature and Soil Moisture. Their Interaction and Effect on Plant Growth

Crop farming covers around 40% of the globe and uses 85% of its fresh water.
Often, in countries where agriculture constitutes the principal occupation of farmers, due to drought and overpopulation, they find themselves in a constant battle to maintain everyday resources such as food and water etc. In such cases, productivity and crop prices assume critical importance. And they, in turn, depend primarily on atmospheric factors and soil conditions.

Our new office in Riga

Our new office in Riga

By the way, we really like our new office in Riga!
The view from our window to snow-covered tiled roofs of the Old City has been pleasing us even during the snowy European winter.
We have not yet managed to arrange all the furniture, but we already admire what surrounds us

Meteorological and Climate Indices for Assessing the Effects of Weather Events on Agriculture

Meteorological and Climate Indices for Assessing the Effects of Weather Events on Agriculture

During the entirety of their lifecycle, crops are affected by a whole range of factors, the greatest influence being exerted by weather events. These have a significant and occasionally decisive effect on the size, quality, and timeliness of a harvest and, consequently, on its value.
There exist a large number of indices for assessing this effect, including both direct measurements and the results of calculations.
Currently, the main source of information is complex weather models based on the mathematical processing of large amounts of data collected from tens of thousands of stations around the world as well as the data received from satellites.

UV-index as an indicator of UV radiation’s effect on improving productivity within agriculture

UV-index as an indicator of UV radiation’s effect on improving productivity within agriculture

Solar radiation is the main source of energy for all processes, which occur in the atmosphere and on the Earth’s surface. Its intensity has a profound impact on the chemical composition of plants, and subsequently, on the quality of agricultural crops. As to whether these changes – caused by an increase or decrease in the flux of UV radiation – are significant or insignificant or indeed constructive or harmful, depends on many factors.  

On the one hand, UV radiation favorably influences the life cycle of plants, it boosts the intensity of photosynthesis processes, facilitating the production of chlorophyll and nutrient absorption.  

On the other hand,  excessive UV exposure can cause protein degradation in leaf cells, leading them to die. Plants possess the ability to repair damaged DNA while several are able to protect themselves from synthesizing absorbed ultraviolet light pigment and from changes to key metabolic enzymes.    The danger occurs when the dose of radiation causes damage which exceeds a plant’s regeneration capabilities.   The damage leads to a decrease in crop yields, fertility, commercial quality and severe consequences, such as changes weed-crop synergies.

VANE Platform News: timeline function

VANE Platform News: timeline function

• To make searching for images easier, a timeline function has been added. This means that images for a period in question, specific dates, or as near as possible to them, can be quickly found and examined. Cloud cover metadata allows you to evaluate beforehand how useful the photos are and to choose the most appropriate ones. This function is available for images from Landsat-8 (l8), Sentinel(se) and RapidEye (re).

• Added to the contour drawing mode is the capacity to create several polygons there and then and enter the coordinates textually (geojson).

Using historical data to reduce losses caused by negative weather events

Using historical data to reduce losses caused by negative weather events

However rapid the pace at which technology evolves, more often than not, the surrounding reality remains the same. While one automobile is being launched into a heliocentric orbit, another is being dug out of a snowdrift with a trusty old shovel. And while the design of the shovel has changed many times in terms of style, high tech doesn’t change what essentially it is.
This is especially noticeable when we encounter climatic and meteorological phenomena which seriously complicate life and which can, in some cases, destroy it.
Unfortunately, at the present time, our influence over the weather is restricted predominantly to our polluting of the environment. Or otherwise to dispersing clouds over the city on public holidays.

Satellite and meteorological monitoring of agricultural conditions

Satellite and meteorological monitoring of agricultural conditions

The effect of quantities and distribution of precipitation on crop cultivation.

Precipitation is agriculture’s main source of moisture. This includes both wet and dry precipitation. Their quantity is one of the key meteorological factors in agricultural productivity.
But it is not simply a case of there being too little or too much precipitation. No less important is its spatial and temporal distribution which increases or decreases potential productivity. The optimal amount of precipitation varies both for different climatic regions and for different crops at various stages of their growth.
Let’s take the year that has passed, 2017, as an example:

India received a total of 841.3 millimeters of precipitation during the monsoon season from June 1 to September 30 that year.
But this monsoon was somewhat freakish. In some parts there was surplus rain, and in others it was insufficient. This cannot but lead to differences in crop productivity in different parts of the country.

Openweathermap team is happy to welcome our new member!

Openweathermap team is happy to welcome our new member!

Bronislava Stavnitskaya
Product Manager

My main tasks are demand and target audience analysis, product development and market launches and shaping subsequent product development using data insights. I also handle the company’s internal business process-related support and development.

The Polygon tool

The Polygon tool

An example of one of the services for agricultural applications offered by VANE has now been added to the Query Builder interface.

The Polygon tool allows you to isolate any outline you want in the photograph, process the satellite images in RGB and EVI, and arrange any color palette with any scale for a specific area.
It is possible to edit it, obtain data on the depicted polygon and download it from the geojson file.

 Then you can get the URL with the assembled polygon and copy it to your site

VANE Platform News

VANE Platform News

- the filter algorithm for selecting BEST coverage tiles has changed.
BEST - is the method for overlaying images (parameter value order), and is the best way possible, depending on the parameters selected: date range, satellite, percentage of cloud cover.
Changes to the algorithm have enabled the quality of coverage to be significantly enhanced:

Sentinel-2 - before

Sentinel-2 - after

- combined data sources Landsat 8 and  Landsat-8_TOA


Landsat-8

Landsat-8 + Landsat-8_TOA

How Changes in the Sea Level Influence Transport Logistics: The Future and Now

How Changes in the Sea Level Influence Transport Logistics: The Future and Now

All images used in this article were obtained by using a new technology called Cloudless, which was developed by the OpenWeatherMap company. This is a new, non-traditional approach to creating a low cloud cover of Earth using low and medium resolution satellite images. At the heart of this approach lie the principles used in processing Big Data and machine-learning algorithms.
More information about the Cloudless technology can be found here

One of the most important physical consequences of global warming is the rise in sea level. Right now, the sea level is rising slowly enough, but, according to forecasts, this process will accelerate over time. This will affect the livelihoods of many coastal regions that will experience flooding. This means that the sea transport network may be seriously affected.
Shoreline erosion and land loss rates will be critical for planning coastal infrastructure.

Forecast Changes in Sea Levels. Melting of the Greenland Ice Sheet

Forecast Changes in Sea Levels. Melting of the Greenland Ice Sheet

Part of the Greenland ice sheet.   Global composite coverage  obtained between 08.01.2017 and 11.30.2017 using data from the MODIS spectroradiometer aboard KA Terra.
http://owm.io/sql-viewer?lat=62.6060&lon=-42.0364&zoom=10&where=between(2017-08-01:2017-11-30)&select=red,green,blue&op=rgb&from=cloudless&tabActive=1

Most forecasts say that warming of our planet will continue and is likely to accelerate. Recent research shows that the oceans will rise from 2.5 to 6.5 feet (from 0.8 to 2 meters) by 2100, enough to submerge many cities on the US Eastern Seaboard. But long-term forecasts are not an exact science.
Historically there have been problems matching the changes observed with factors from different sources that supposedly contribute to this process.
At the moment, it has been established that changes in global sea levels are affected by three factors: melting of the polar ice caps and glaciers, thermal expansion of water due to warming of the seas and oceans, and local factors such as changes in marine currents and geological processes (land rising and subsidence) which overlap with the global trend.
Both with the polar icecaps and with the glaciers, the rise in air temperature causes increased melting of large ice cover.
For example, should the Greenland ice sheet alone melt, the sea level could rise by 7m.

Global coverage obtained between 08.01.2017 and 11.30.2017 using data from the MODIS spectroradiometer aboard KA Terra.
http://owm.io/sql-viewer?lat=72.1009&lon=-43.7695&zoom=4&where=between(2017-08-01:2017-11-30)&select=b1,b4,b3&op=rgb&from=terra&tabActive=1

OpenWeatherMap 2017: Results of the Year

OpenWeatherMap 2017: Results of the Year

So the, new year, 2018 has come, and it's time to sum up the results of the past year for our company, OpenWeatherMap (UK, US and Latvia), developers of one of the best weather APIs in the world.
A lot happened and much has changed.
During the year, our number of users grew from 600,000 to 1 million. We participated in the Startup Grind Global Conference in Silicon Valley where the team from OpenWeatherMap was named in the top 50 Startup Exhibitions of 2017. Our mature team was filled up with excellent professionals and wonderful people.
We did a lot of new things and qualitatively improved our current developments.
In 2017, we were pleased to present to you:

Weather data: API and Weather Maps

  • The Open Dashboard for Agricultural Monitoring
     can help give you an idea of the possible use for meteorological and satellite data in your agricultural applications.
  • Specially for the agriculture sector, we launched an API for accumulated temperature data and an API for accumulated precipitation data.
  • The Weather Historical Bulk service.
    Now you can simply choose a city (or several cities) and download an archive, which contains bulk file with the weather history up to 5 years - any day, week or even several years.
  • A new and improved version of an API for UV-index
     

    Throughout the entire year, we worked constantly on our history weather API. For this year, the amount of data supplied and speed to process that data increased significantly. Also, we made it possible to quickly upload data in a format that doesn’t require additional processing and can be understood by any user.
    Our Weather Maps app changed qualitatively.
    This year, we added the ability to switch the layers of weather and satellite maps, create various combinations with them, and connect them to mobile and web apps.

Satellite data: Vane platform

This year, we significantly improved our satellite platform. Our team undertook a huge amount of work and in June were able to present  a new version  of the satellite image processing  platform VANE.

Based on the Vane platform, we developed a new product called  Global Satellite Base Map, which uses visual tools and query language to generate a map from satellite images. The uniqueness of the product is that all data processing is done on the fly, and there are no presets or pre-made calculations. The user defines the parameters for a calculation and image processing and immediately receives a result for any territory. This capability was only possible thanks to Vane, our super powerful data processing platform.

We recently presented you with Query Builder, our new interface for the Vane platform. Now you can use this simple tool to create your own map in just a few seconds, and with just one click receive a completed link for display on your site or app using a web map library like Leaflet, Open Layer, Mapbox and Google Map.

We are grateful to everyone that worked with us for all this time. We thank you all your feedback and for not getting bored by our tech support.
We have a ton of plans for the coming year. Stay tuned, and you will see a lot of the new and interesting things to come. Subscribe to our Telegram Channel https://t.me/openweathermap and get news first about our updates and new products!

Happy New Year

Happy New Year

OpenWeatherMap team wishes you a happy New Year! Thank you for being with us this year, we hope to see you in 2018.

Christmas weather widget

Christmas weather widget

As a Christmas gift, we've prepared some special weather widget, that you can embed into your site or blog to watch for the holiday weather in your city area. You can get it at the weather widgets page .

Happy Christmas!

Happy Christmas!

Openweathermap team wishes happy Merry Christmas and a beautiful holiday weather for New Year to all our users and visitors! Thank you for being with us this year!

Cloudless: global cloudless composite coverage based on the VANE Platform

Cloudless: global cloudless composite coverage based on the VANE Platform

In the drawing is global coverage obtained between 06.01.2017 and 09.01.2017 using data from the MODIS spectroradiometer aboard KA Terra and Aqua.

The current cloudless coverage of the Earth by medium and low-resolution satellite images are an important element in the regional and global systems that monitor the territorial changes caused by natural and man-made factors. For example, assessing the damage inflicted by forest fires caused by deforestation, volcanic eruptions, flooding,etc. Also, such types of coverage are popular as the base layer for cartographic web services.

The main stages of creating such coverage are: the selection of images, expert as a rule, the masking of clouded areas, tonal adjustment of images taken at different times of the year, and pasting them into single coverage using so-called “cutlines” which enable, to a certain extent, the joins between the pasted images to be hidden. Such operations, as a rule, are carried out in semi-automatic mode and require specialized software and highly qualified experts, which substantially increases both the time taken to create such a product and its cost.

The Weather and Sea Transport. Using Forecasts and Weather Maps for Effective Route Planning

The Weather and Sea Transport. Using Forecasts and Weather Maps for Effective Route Planning

It isn’t possible to affect weather conditions, but what is possible is to predict them.
Services currently available provide not only accurate up-to-date weather reports, and forecasts for different time-periods, but they also provide visual displays of various weather phenomena on weather maps, allowing a quick assessment of the overall picture. For such a weather-dependent industry as sea transportation, receiving timely accurate and visual information is particularly important.

Sea transport is one of the most tried and trusted ways of delivering cargo. Shipping lanes don’t need rebuilding or to be kept in working order. This is precisely why sea freight doesn’t cost as much as other modes of transportation.
Its main disadvantages are the long delivery time and the dependence of the vessel on weather conditions.
The most important meteorological variables which determine sailing conditions for sea vessels are the wind and those things which are dependent upon it: the condition of the water’s surface, precipitation, and temperature.

How Weather Forecasts Can Help Save Fuel.

How Weather Forecasts Can Help Save Fuel.

The effect weather has on fuel consumption of motor vehicles

The question of fuel efficiency often becomes an extremely acute one for drivers, especially in European countries. High prices for gasoline, environmental pollution - these factors necessitate finding ways to tightly control the amount of fuel consumed. This is of particular relevance to companies engaged in large-scale freight transportation where fuel expenses are a significant part of transport costs, and their reduction can improve the company’s market competitiveness.

Fuel expenses depend on several overall factors: the weight of the vehicle, driving habits, road conditions, and the extra energy expended in certain kinds of weather, etc.

Bearing in mind that road conditions are also often determined by different weather events, it becomes clear that, when planning prolonged resource-consuming trips, attention paid to weather forecasts is not time wasted. And for road-haulage companies, having historical meteorological data for the entire transport route can be extremely useful for assessing the appropriateness of the amount of fuel used by the driver.

Weather widget’s new geolocation and weather map functionality

Weather widget’s new geolocation and weather map functionality

We invite anyone wishing to do so to try out our weather widget’s new geolocation and weather map functionality - https://openweathermap.org (please note that HTTPS in the URL is required), which can be targeted to the user’s specific location. 

Openweathermap has a new section dedicated to users who work within the agricultural sector

Openweathermap has a new section dedicated to users who work within the agricultural sector

For your information, Openweathermap website has a new section dedicated to users who work within the agricultural sector.  It can be accessed from the API list page, and at any given moment, detailed API documentation is available on accumulated weather data (such as temperature and precipitation).
This API service is included in the Historical subscriptions by default with the appropriate time limits. Please contact us if you would like to use this API separately.
We plan to expand the section and continue work in this direction.   Stay connected.
We are ready to answer your questions and will be glad to hear any proposals you might have.

The weather in Northern Europe is September - October 2017.  Hurricanes Sebastian, Xavier, Herwart

The weather in Northern Europe is September - October 2017. Hurricanes Sebastian, Xavier, Herwart

The weather in Northern Europe is September - October 2017. We hope that November will be more peaceful.

13th of September - Hurricanes Sebastian 
query builder: day:2017-09-13, terra


5th of October - Hurricanes Xavier
query builder: day:2017-10-05, terra


The night from 27th to 28th of October - Hurricanes Herwart
query builder: between(2017-10-27:2017-10-28), aqua

Implementation of modern meteorological models for improving the performance of solar power stations

Implementation of modern meteorological models for improving the performance of solar power stations

Weather and climate conditions are some of the primary factors influencing the performance of renewable energy power plants, particularly the performance of photocells in solar batteries.

Weather factors.

Obviously, the intensity of solar radiation has the greatest effect. The efficiency of solar panels is reduced if solar radiation intensity is reduced or absent altogether.

Temperature
Solar batteries perform better at lower temperatures than in a hot climate. Electrical output may be more than normally efficient in winter, in temperatures below freezing.

Cloud cover
Solar radiation reaching the earth’s surface decreases as cloud cover increases. Solar batteries receive maximum sunlight on cloudless days with direct rays of the sun. These are the peak hours when they will be producing the most energy. The light received decreases as the cloud cover increases. Solar batteries will produce minimum usable energy on heavily overcast days. The batteries will work at half their efficiency when there is enough light for objects on the ground to cast a shadow.

Climatic conditions and topography.

To a considerable extent, climatic conditions depend on topography.Mountains, seas and oceans, large lakes and their location relative to each other exercise the greatest influence on the formation and behavior of clouds and on the temperature.This results in the amount of solar radiation in adjacent regions with different topographies varying radically. For example, mountains may get less solar radiation than neighboring foothills and plains. The amount of solar radiation in coastal areas may differ from inland figures.


Distribution of precipitation and temperature on the mountainous coast of Canada north of Vancouver 

All these factors need to be taken into consideration in designing plant infrastructure for planning electrical consumption and load.This makes the accuracy, and hence the source, of weather data very important.

Relevance of data is not guaranteed by proximity to a meteorological station in regions with complex topography, such as in mountainous areas or simply areas with sharp changes in elevation.
At present, complex weather calculation models, which it has become possible to generate using modern technologies such as IoT, Cloud Services, and Big Data, are used to obtain accurate weather data.

OpenWeatherMap weather service is based on the VANE Geospatial Data Science platform for collecting, processing, and distributing information about our planet through easy to use tools and APIs.
We are collecting data from weather stations and forecasts of meteorological services and research laboratories, combining long-term and short-term forecasts with real-time data from weather stations, processing them and immediately updating current weather and forecasts in our API. Today we have more than 40,000 weather stations.
Data is stored in the VANE database and processing with our unique algorithms to create interpolated data of current weather conditions anywhere in the world, as well as into a variety of weather maps.

You are invited to test the new web interface Query Builder for our Vane platform

You are invited to test the new web interface Query Builder for our Vane platform

You are invited to test the new web interface Query Builder for our Vane platform.
You can use this simple tool to create your own map in just a few minutes, and with just one click receive a completed link for display on your site or app using a web map library like Leaflet, Open Layer, Mapbox and Google Map.

This version is an improvement over the previous one in terms of simplicity of use and layout. The user can select either one of the available data sources and the required combination of spectral bands or one of the derivative index products such as NDVI, EVI, etc. You can also set up display parameters, including clarity, contrast and gamma correction, or use one of the available schemes provided. After that, all you need is to get an API key and insert it in the prepared link, and you can use it in your programming product.
We are ready to answer your questions and will be glad to hear any proposals you might have.

Role of frozen precipitation in plant development. Accumulated precipitation data

Role of frozen precipitation in plant development. Accumulated precipitation data

A large amount of water is needed for normal plant development.The primary source of soil moisture is atmospheric precipitation.

Along with rain, solid precipitation in the form of snow that falls in the winter season exercises a significant influence on the agricultural cycle. Snow creates a snow cover that protects winter crops, perennial grasses and the root systems of fruit trees and small fruit plants against injury from frost. Furthermore, the snow cover provides a moisture reserve used by the plants in the spring and the first half of summer.

These moisture reserves accumulated in the soil before sowing contribute significantly to the development of all plants. Agricultural practice worldwide attests to the fact that the moisture accumulated during autumn and winter is a major factor limiting possibilities for un-irrigated agriculture. For example, deciding which areas to seed for wheat in arid districts often depends on the soil moisture content in the spring. If insufficient, fields designated for sowing wheat are used for crops that require less depth of moisture, or else are left fallow.

The role played by soil moisture in successful sowing varies considerably depending on the meteorological conditions during the growing season.

Very little dissipates in rainy seasons with lower air temperatures. On the other hand, plants survive largely at the expense of water in the soil during arid years, which normally dries up along the entire length of root development. In these situations, the autumn and winter water reserve from frozen precipitation is a primary source for providing plants with moisture, and field crops use up all these reserves completely in producing the harvest.

Given this situation, it’s difficult to overestimate a factor like precipitation accumulated over the winter. It’s possible to plan for field use for the upcoming season, decide which crops to plant and plan for the size of the harvest when you have data available on accumulated precipitation.

Accumulated precipitation data is calculated as the total precipitation for a given period, based on historical data.

Weather and pests. Accumulated temperature data for analysis of possible damage from pests

Weather and pests. Accumulated temperature data for analysis of possible damage from pests

Fields and gardens are complicated ecosystems in fact, and they are the perfect habitat for pests. Additionally to direct harm caused to plants by pests, many pest species can transmit viruses from one plant to another and hence spread diseases.  
Biology of living creatures is closely connected with weather. Organisms are dependent on seasonal cycles as well as on temporary fluctuations. Weather influences all living things primarily due to changes in temperature and humidity. Weather conditions can provoke a sharp increase in pest amount. For example, hot and dry weather gives rise to aphid, while slugs and snails thrive in relatively warm and wet conditions. Pest behavior is especially closely bound to temperature. Aftermath of non-seasonal changes in temperature (such as later than usual frosts or warmer summers) and its impact on pests is notorious for many centuries.  

The influence of temperature on plant productivity in agriculture. Accumulated temperature.

The influence of temperature on plant productivity in agriculture. Accumulated temperature.

Accumulated temperature is a weather parameter which directly influences productivity of agricultural plants. All biological and chemical processes taking place in the soil are connected with air temperature. Heat supply of crops is characterized by a sum of average daily air temperatures that are higher than a biological minimum during a vegetation period. Both too high and too low temperatures spoil a course of biochemical processes in cells, and irreversible changes can be caused that lead to a stop of growth and death of plants.

New API for accumulated temperature and precipitation data!

New API for accumulated temperature and precipitation data!

We are happy to announce our new APIs based on historical data and focused primarily on users from the agro-sector. API for accumulated temperature data and API for accumulated precipitation data.
Accumulated temperature data is an index that denotes an amount of warm. This index is determined as a sum of average daily air and soil temperatures which exceeds a definite threshold of 0, 5, 10 degrees or a biological minimum of temperature level which is crucial for some specific plant.
Accumulated precipitation data is calculated as a sum of all parameters for a peculiar period.

How weather indexes affect road traffic strategy

How weather indexes affect road traffic strategy

One of the strongest reasons to check the weather forecast is road traffic safety. Unfortunately, any weather change leads to an increasing number of road traffic crashes. However contrary to popular belief, one of the main reasons behind traffic collisions is neither sudden snow fall nor unexpected rain, but driver’s lack of knowledge about the weather influence on road traffic safety on the whole. And consequently, a significant part of drivers do not pay proper attention to a current weather forecast and they choose an inappropriate for the present weather way of driving. For example, many drivers comply with road speed limits only when the weather is really nasty, and such measures as usage of fog lights and reduction of cases when a driver changes a lane are rarely used. Nevertheless, even a light rain or haze can lead to increasing braking distance of a vehicle and trigger an accident.  

And what is particularly bad, the aggravating weather conditions enlarge an amount of cases when pedestrians are involved in traffic collisions. A driver does not plan to be a killer, but sadly such accidents happen often nowadays. Statistics say that in town areas every tenth crash is a collision of a vehicle with pedestrian.

Accumulated precipitation data for agriculture

Accumulated precipitation data for agriculture

Precipitation, mostly rains, has a huge impact on agriculture. For the growing all the plants need a smallest amount of water at least, and rain is still one of the most effective ways of watering despite the development of modern technologies. Too much or otherwise too little precipitation is bad and even harmful for agricultural plants. Drought can destroy the harvest and can increase erosion as well as the overly humid weather is able to trigger a growth of unfavorable fungi. Moreover, various kinds of plants demand different amounts of precipitation. For example, some succulent species require little water while tropical plants need hundreds of inches of rain a year just to maintain their living.
A fluctuation of precipitation amounts is quite substantial in continental climates. A fluctuation of month amounts is bigger than those of year. A considerable precipitation variation leads to situations when there is a precipitation lack during some years, and drought takes place thus forming the areas of unstable hydration. With a long absence of rains and at high temperatures the reserves of moisture in the soil dry out due to evaporation. A previous arid season brings a shortage of a crop yield even in a humid season as the harvest lacks time to ripen. Thus disadvantageous conditions for an ordinary plant development are established, and a crop yield of agricultural plants decreases or perishes.  
Along with precipitation amounts, the number of days with precipitation a month or a year is also a significant climatic index. Plants are sensitive about a matter whether a given precipitation amount falls at once during only several days or it rains often and a precipitation amount is distributed comparatively evenly throughout a month. For instance, even one great downpour in a prairie area in summer has a little ability to improve an arid situation.
Employing a data set of a precipitation amount and a number of days one can calculate an accumulated precipitation amount for any region during a specific period of time.

Accumulated temperature data for agriculture

Accumulated temperature data for agriculture

Temperature, and especially accumulated temperature, is an important factor and it plays a fundamental role in agricultural productivity. Plants and insects develop in accordance with temperature. The warmer weather, the faster they grow and reproduce, and otherwise, the colder, the slower the processes go.

All species have a biological minimum of a temperature level, and the development does not take place at all below this level. When temperature of environment begins to exceed this minimum level, it gives a start to growth and reproduction. The value of this basic temperature (or a development threshold) has a crucial significance, and it differs for a definite species of plants and insects.

Accumulated temperature (AT) represents an integrated excess or lack of temperature regarding a fixed starting point. This index is calculated as a sum of average daily temperature of air and soil, which exceeds a certain threshold of zero, 5, 10 degrees or a biological minimum of a temperature level.

Basically speaking, this is a way to include temperature and time into one dimension for quantitative evaluation of growth speed of plants and insects. Usually the index of accumulated temperature data is used to create models of crop growth.  
In the near future we will introduce our new API for the accumulated temperature data. API will be based on historical data and will be focused primarily on users from the agricultural sector.  

Travel countdown, weather, tours and inspiration

Travel countdown, weather, tours and inspiration

With Ready Set Holiday application and weather data by OpenWeatherMap you can perfectly plan your weekend holidays. 

Everyone travels not like others. 

One is suddenly struck by an idea, he grabs a backpack, some clothes, gadgets, buys a ticket  not of great importance where or  gets a bike or a car and sets out for adventures despite a burning sun or heavy rain outside. 

However the most people prefer to plan their trips thoroughly in advance. And often this planning brings as much pleasure as the trip itself.
One wishes that everything in a trip is greatly planned and goes smoothly. Actually it’s a nice occupation to learn an area by map and photos, to check forecasts for all the future locations, to choose and book tours scrupulously considering the experience of former travelers. And weather here is a quite crucial factor. A trip which is planned without regard to forecast has a risk not to be ruined completely, but it can frustrate you. Choosing holiday time with attention to forecasts from OpenWeatherMap, you avoid disappointment. Application Ready Set Holiday turns trip preparation to an easy and interesting thing. And our forecasts and current weather let get maximum pleasure from a trip and prevent a bad cold and overheating.        

OpenWeatherMap weather data for a smart home. Relative humidity

OpenWeatherMap weather data for a smart home. Relative humidity

Generally speaking, humidity is the amount of water contained in the air. And relative humidity is the ratio of the mass fraction of water vapor in the air to the maximum possible value of this quantity at a given temperature.

Usually the notion “climate” includes temperature and precipitation. Often such factor as relative humidity is forgotten. It’s necessary to mention that basically one pays little attention to that parameter. Temperature, wind speed, pressure – in this range air humidity is an outsider and improperly deprived of attention. However relative humidity is not only one of the most important articles in weather forecasts, but also one of the defining factors of well-being.

Pilots are eager to fly. How weather data help to find an airway

Pilots are eager to fly. How weather data help to find an airway

Let's consider one of the new interesting cases where weather data by OpenWeatherMap is used. 

Usually it's not a quick and easy deal for pilots to find an air corridor with appropriate weather for flying. Sometimes a search for a starting point of a flight and for its destination point takes up to 1-2 hours. ParaglidingStart.info is an application which uses real-time weather data by OpenWeatherMap alongside with information from many other sources. The application shows the current weather for possible starting points of a flight. There also can be found forecasts and other information like the description of the areas or the airspaces. One can implement further features for the pilots in the future.

Pilots are eager to fly, not to spend time looking for airspaces appropriate for flying. And OpenWeatherMap team is happy that our data help them to do so.

Smart home. The relation of temperatures "inside" and "outside".

Smart home. The relation of temperatures "inside" and "outside".

From the first glance, ideal temperature is a subjective notion. It's a usual thing when some people open windows widely, while others wrap up themselves in sweaters and drink hot tea at one and the same room.
One badly tolerates heat, another is afraid of cold. When you are in a room, your comfort temperature depends not only on your physical peculiarities as of a human being, but also your comfort temperature is unique for every surroundings you are in.
The quality of isolation, the tasks you do at home, the amount of working equipment - there is a lot of factors which affect our perception of desired temperature. The comfort temperature is a balance between a wish to wrap up yourself in tons of clothes and a rush every 10 min to cold shower.

Intellectual management of buildings. Weather API

Intellectual management of buildings. Weather API

Intellectual management of buildings simultaneously solves 2 crucial tasks: it lets decrease  electric power cost and reduce CO2 emission and it all together has a positive effect on ecology.  
For the present moment there exist ready solutions which allow reasonable management of all the equipment: lighting, air conditioning, ventilation, heating, cooling, secure systems, etc.
Effective tools of monitoring observe functioning of a building in real-time mode: the tools calculate energy consumption, analyze current technical issues, trace surplus of CO2 and its emission.
The analysis of data received with the monitoring tools also implements management of processes taking place in buildings remotely. For getting actual information, one needs only to launch a browser.     

And here an easy access to a huge storage of data arrays is really necessary: data of different kinds comes constantly and is being processed in real-time mode. 
Our OpenWeatherMap team is happy to know that our development of weather APIs which are used as a part of global solutions in such projects throughout the world contributes to increasing of energy effectiveness and thus helps to improve ecological situation.   

We are glad to introduce a new version of our satellite image processing platform VANE.

We are glad to introduce a new version of our satellite image processing platform VANE.

We are glad to introduce a new version of our satellite image processing platform VANE.
So, what’s new:
Now a request with an error or invalid values will return a response with the recommendations on how to fix it. Also the validation of values became stricter.
For example, the “select” parameter takes only a definite amount of bands. Parameters’ specifications themselves have gone through some changes

You can find the detailed description here http://owm.io/vaneLanguage

It’s easier to work with colors now by using default color schemes and palettes. A corresponding default color palette is automatically generated depending on an operation (the “op” parameter) and a current data source (the “from” parameter). And of course you can make your own color scheme.

We are happy to announce that one of our products - API for UV-index has got significant improvement

We are happy to announce that one of our products - API for UV-index has got significant improvement

We are happy to announce that one of our products - API for UV-index has got significant improvement.    
- Now besides current and historical data, you can also get UVI forecasts for periods of 8 days.    
Syntax has got considerably easier,  it has become clearer and more unified like other APIs version 2.5.  
- There is a new feature to request data on any geographic coordinates without limits on accuracy.
Accuracy of UVI modeled data has been increased twice (the interpolation grid step decreased from 0.5 to 0.25 degrees).      
- Soon the support of search by city name, city id and zip-code will be available. 

You can find the instructions for the updated version here http://openweathermap.org/api/uvi 

Please pay attention that during 2 weeks UV-index data will be in open access.  Further, access to this data will be available only for paid plans starting from Developer. For more information on our plans please visit  http://openweathermap.org/price

The previous version of API (http://openweathermap.org/api/old-uvi) will be announced deprecated soon, and no support will be provided for this version.

VANE Platform gets Update with Planet Satellite Imagery Integration

VANE Platform gets Update with Planet Satellite Imagery Integration

We are happy to announce today that Openweathermap has partnered with Planet to provide access to current and archived Rapideye and PlanetScope satellite imagery in the VANE geospatial platform. Planet operates the world’s largest earth observation constellation of satellites and has the capacity to image the world’s landmass on a daily basis.

With this partnership, the VANE platform enables online processing and access to global high resolution imagery from Planet, further diversifying our Global Base Map product that currently offers publically available Sentinel and Landsat data.

>>> Read more

We extended the list of supported languages for weather conditions.

We extended the list of supported languages for weather conditions.

Do you want to receive weather data in your language? We extended the list of supported languages for weather conditions.
Now in our API the following languages are available:

Arabic (ar); Czech (cz); Greek (el); Persian(Farsi) (fa); Galician (gl); Hungarian (hu); Japanese (ja); Korean (kr); Latvian (la); Lithuanian (lt); Macedonian (mk); Slovak (sk); Slovenian (sl); Vietnamese (vi).

We invite all our users to test translations for weather conditions in different languages. We will be happy to extend our language support according to your wishes. If you have any questions or suggestions - please send them to https://openweathermap.desk.com/. The specification for all weather conditions in English is available here: http://openweathermap.org/weather-conditions

New styles for weather maps API

New styles for weather maps API

We added new version of rendering styles for Weathermap API.

To get weather map layers in new predefined styles you need to add _new to the appropriate layer name like the following:

http://tile.openweathermap.org/map/{layer}_new/{z}/{x}/{y}.png?appid={api_key}
History Bulk documentation

History Bulk documentation

For your convenience while working with our historical data we have created History Bulk section at OpenWeatherMap.com. There you can find a manual on data extraction for different time periods and cities, also there are examples of data extraction in JSON and CSV file formats and description of weather parameters.

Weather maps API updated

Weather maps API updated

Example of weather map layer  - layer's name: temperature, area: worldwide

OpenWeatherMap VANE platform provides many kinds of weather layers including Precipitation, Clouds, Pressure, Temperature, Wind, Snow and Rain.
See the full list of available layers at http://openweathermap.org/api/weathermaps#examples
You can connect them to mobile and web apps as ZXY-tile layers. It is also possible to combine several base maps and overlays in one map like in the following Weathermap example.
The documentation for Weather Maps has been updated. And there is an important change - please pay your attention, that starting from the next week, API key to access tiles will be obligatory.
Note, that Weather Maps are available for Free keys as well as for all paid ones.

Weather Historical Bulk is launched!

Weather Historical Bulk is launched!

We are happy to introduce you our new service which provides weather historical data for more than 30,000 cities for the last 5 years.

Now you can simply choose a city (or several cities) and download an archive, which contains bulk file with the weather history up to 5 years - any day, week or even several years. Pricing is simple and easy - just $10 for one city, no matter how much data will you receive http://openweathermap.org/price. Just sign in and place an order on your personal page https://home.openweathermap.org/history_bulks/new. Please note that our traditional History API stays the same.

World around us: NDVI vs NDWI

World around us: NDVI vs NDWI

This checkerboard picture is a satellite photo of Priest river in the northern Idaho.
It's interesting to see this area from the point of view of vegetation (NDVI) and water (NDWI) indexes.

Tomorrow! Startup Grind Global Conference!

Tomorrow! Startup Grind Global Conference!

Startup Grind Global Conference is organized between 21 Feb and 22 Feb 2017. The location of the Conference will be Fox Theater which is one of the incredible site for such an essential event.

 We are proud that OpenWeatherMap have been inducted as one of 50 companies selected to the prestigious 2017 class of Startup Exhibitors. On February 22nd we invite everybody to our stand, where we will demonstrate the opportunities of VANE platform and its products. Stay tuned for more coverage from the Global Conference 2017 in Silicon Valley!

How to know what particular imagery do you get from VANE Geospatial Platform

How to know what particular imagery do you get from VANE Geospatial Platform

The one of the ideas of VANE platform - no need of search by scenes and footprints. It is based on a simple assumption: each location in the world has metadata - click on any location and get information about all pixels containing this location. Such projects as cloudless atlases and Google base satellite maps are created according to this basic principle, stitching best imagery pixels in one seamless mosaic. According to scenes metadata VANE can preliminary compile the best satellite cover - users need to set up a parameter order=best for this operation. Even more, VANE language allows you to set up further requirements for your mosaic, providing appropriate parameters in your query - meaning: no older than (day>{yyyy-mm-dd})… or put all last imagery on the top (order=last)... or within the specific time interval (between({yyyy-mm-dd}:{yyyy-mm-dd}))…
Than you can go further, applying your custom colors to the result mosaic, according to VANE language specification.

Just to demonstrate this principle in work we’ve launched a very basic application called Finder.

Satellite imagery: Kīlauea volcano eruption, Hawaiian Islands

Satellite imagery: Kīlauea volcano eruption, Hawaiian Islands

December 31, 2016 Kīlauea volcano erupted.
Kīlauea is a currently active shield volcano in the Hawaiian Islands, and the most active of the five volcanoes that together form the island of Hawaiʻi.
In Hawaiian mythology Kīlauea is the body of the deity Pele, goddess of fire, lightning, wind, and volcanoes. While the conflict between Pele and the rain god Kamapuaʻa was centered; Halemaʻumaʻu, "House of the ʻamaʻumaʻu fern", derives its name from the struggle between the two gods.

Happy New Year

Happy New Year

OpenWeatherMap team wishes you a happy New Year! Thank you for being with us this year, we hope to see you in 2017.

Beautiful maps: Deserts: Namib Desert

Beautiful maps: Deserts: Namib Desert

The Namib is a coastal desert in southern Africa. The name Namib is of Nama origin and means "vast place". According to the broadest definition, the Namib stretches for more than 2,000 kilometres along the Atlantic coasts of Angola, Namibia, and South Africa.

One of the most popular cases for weather API’s usage is the weather widgets.

One of the most popular cases for weather API’s usage is the weather widgets.

OpenWeatherMap provides a bunch of weather API’s for developers, who create this kind of apps and many others. But our site is quite visited by users who’d like to check the weather for the certain city - so we created a various stuff of widgets you can copy and paste into your web page or blog as a ready-to-use JS code snippets no programming skills required.

Weather alerts from OpenWeatherMap

Weather alerts from OpenWeatherMap

We invite you to try our new product - the weather alerts which are based on our meteorological data.

Now you can use simple syntax and a few methods of the API to create triggers which will be working upon the occurrence of specified weather conditions (temperature, humidity, pressure, etc.) in a certain period of time. For example, if you are interested in the forecast of approach of frosts or probability of strengthening of wind in a certain place, then you can get this information by using our new tool. More detailed description of work with service is given below.

The alerts will be generated in our service after performing conditions of the trigger. It is necessary to poll service with a certain interval of time to receive it. In the future we are planning development of this direction, addition of push-notifications and new data sources.
http://openweathermap.org/triggers

Weather Alerts structure
http://openweathermap.org/triggers-struct

How to make online products on satellite images: Preparation

How to make online products on satellite images: Preparation

We have prepared several cases for your close acquaintance with our product and we hope you will like it! Let's start from the very beginning

How to make online products on satellite images and integrate them to agricultural applications

How to make online products on satellite images and integrate them to agricultural applications

Hello, everyone!
We have good news for you)
How to make online products on satellite images and integrate them to agricultural applications.
It is a scope of workouts that might be useful for precision agriculture applications. You can learn how to query satellite images to form scenes in RGB, NDVI with any color scheme with flexible customization of any parameters for any crops. Just integrate any query into the application to get instant result.
http://owm.io/cases/agri

Satellite imagery: Landsat 8 and its Band Combinations.

Satellite imagery: Landsat 8 and its Band Combinations.

In the current version of VANE Language, we use images from Landsat8 satellite which captures the Earth’s entire surface every 16 days. The satellite makes hundreds of images with a unique name for each one like LC81410552016219LGN00 and a pixel size of 30 meters, each image consists of 11 bands, the size of the uncompressed image is 2 GB.
Landsat 8 Operational Land Imager (OLI) and Thermal Infrared Sensor (TIRS) images consist of nine spectral bands with a spatial resolution of 30 meters for Bands 1 to 7 and 9. New Band 1 (ultra-blue) is useful for coastal and aerosol studies, and also new Band 9 is applicable for cirrus cloud detection. The resolution of Band 8 (panchromatic) is 15 meters. Thermal Bands 10 and 11 provide more accurate surface temperatures and are collected at 100 meters. Approximate scene size is 170 km north-south by 183 km east-west (106 mi by 114 mi).
By default, we get B2, B3, B4, B5, B7, but it is possible to download any other bands

Beautiful maps. Snows and Glaciers: Greenland.

Beautiful maps. Snows and Glaciers: Greenland.

The face of our planet is changing constantly. There are several reasons of this process, they are of natural and technogenic (i.e. a result of human activity) origin.
One of such processes that we can observe during the past decades is ice melting. And in particular, there is melting of big glaciers. This factor is a crucial one that impacts changing of the Earth’s surface the most. The matter is that this type of ice melting has the most influence on the level of the World Ocean, in comparison with melting of sea ice which is already in the water. Thus, observation of glacier melting has a great significance not only as a signal point in global warming, but also due to its impact on the level of a global ocean.

Weather Stations API 3.0

Weather Stations API 3.0

OpenWeatherMap is happy to announce good news for owners of private weather stations! We are launching a new version of Weather Stations API 3.0. Now there are more easy ways to manage your stations and transmit its data.  

Weather risk management on agricultural market through index-based insurance and weather data

Weather risk management on agricultural market through index-based insurance and weather data

In recent years, the problem of decreasing productivity of agriculture has arisen sharper due to climate change and long-term weather fluctuations; there is even the threat of famine in some countries, which are more dependable on crop productivity. This problem can be solved with traditional and known for centuries tools, i.e. by expansion of sowed land through deforestation.

Simultaneously, the intensification of manufacturing or the expansion of cultivated land into previously wild areas can lead to additional emission of greenhouse gases due to the removal of trees and also these processes can increase the amount of used fertilizers. These both actions are factors contributing to climate change and appearance of negative weather phenomena such as drought.

Examples of VANE Language: False color

Examples of VANE Language: False color

These are maps, which you can compose by a combination of any three bands. For instance, use SWIR (band 7) instead of the red spectrum (band 4) and use NIR (band 5) instead of the green one (band 3), then you will get a map of land victimized by fire (See Fire detection, above).
 To get a map of a necessary color, just choose a combination of bands and you will find out what it looks like to see the world through eagle or wolf eyes.

Examples of VANE Language: Custom NDVI

Examples of VANE Language: Custom NDVI

The NDVI is a major vegetation index for the agricultural industry and farming, and with VANE Language you can customize a colour scheme to get a proper picture. Here in contrast to just the NDVI option a user can set a color scale and define the colors of zones. 

Examples of VANE Language: NDVI

Examples of VANE Language: NDVI

The NDVI, i.e. the normalized difference vegetation index, is a simple graphical indicator of biomass active photosynthetically.The NDVI is one of the most common and widely used indexes for evaluation of vegetated areas, their quality and quantity. Using the NDVI it is possible to detect presence of plants, its dynamics of emergence and growth. For getting of this index there is Band 5 which measures the near infrared spectrum, or NIR (Near Infrared). This part of the spectrum is reflected by water in leaves of healthy plants. Maps of the NDVI with dynamics (in various seasons) let tracing peculiar features and deviations of seasonal vegetation.

How to use OpenWeatherMap UV index

How to use OpenWeatherMap UV index

Thank you for the article  Francesco Azzola
  http://www.survivingwithandroid.com
 @survivingwithan
  https://it.linkedin.com/in/francescoazzola

This post describes how to use OpenWeatherMap UV index. This is an interesting API because we can use it to explore some important aspects about Android and location aware API. Openweathermap provides this API for free! As you may already know, OpenWeatherMap provides also a full set of API about weather information: you can get current weather conditions, forecast, historical information and so on. This information is free and we can use OpenWeatherMap API free of charge.

Focusing on this article, at its end, we will build an Android app that gets UV index and show it using Material design guidelines.

Before diving into the app details is useful to have an idea about UV index.

Examples of VANE Language: RGB

Examples of VANE Language: RGB

One of the simplest operations is to generate RGB map. Here an image consists of Bands 4-3-2 which correspond to the well-known RGB color model. Red, green and blue spectra combine together for creation of full color images.

OpenWeatherMap presents the release of the VANE Language service

OpenWeatherMap presents the release of the VANE Language service

OpenWeatherMap presents the release of a new service the VANE Language (former imagery API) with examples: http://owm.io/vaneLanguage 
Initially, we called it Imagery API but finally understood that this service is much bigger than just API calls. Language is a proper name for this service. It is like an SQL for satellite images. Something unique on the satellite market.The Language is entirely online service, there is no any manual procedures or presets like maps prepared in advance. 

One image that we receive from Landsat8 is not an image in common understanding but several layers that have to be processed and merged somehow before you can do anything with it. The weight of each unarchived number of bands is around 2 Gb, and obviously, it takes a lot of resources and time to process it. E.g to make a global map you need around 10,000 images that should be processed and merged. With VANE Language developer does not worry about time-costly pre-processing because we do it online immediately. We give him a powerful tool that is familiar to any developer and hides all complexity. In a short word VANE Language gives a full flexibility for a developer to do with images whatever they want and deploy result into applications. VANE also have a unique feature of configuring the formula of image processing. Means that developer can set up his logic of processing of the image to make specific vegetation indexes, false colors and any other images that he can use for analysis of objects, changes, yield health, etc.

Financial impact of changing climate on agriculture

Financial impact of changing climate on agriculture

Recent years agriculture experiences much heavier losses caused by changing climate and alterations in global middle-season temperature. Even a small rise or drop of usual temperature takes a toll on yield, productivity and profitability of agricultural sector. In such situations both manufacturers and consumers of products undergo some difficulties.    

Profit and losses of manufacturers and consumers differ significantly depending on their location; mostly this burden comes to developing countries since they have much dependence on yield productivity and it’s more difficult for them to adopt changes.      

Modern approach to use of weather data in effective marketing

Modern approach to use of weather data in effective marketing

Recently the approach to marketing has greatly changed. Simple broadcasting of information about goods and services, even in the most whimsical of forms, is getting out-of-date quickly. At the moment those companies are the most successful who experience a flexible approach towards using of information, both current and historical.

Weather risk management in retail

Weather risk management in retail

Daily news mass media readily inform people about numerous natural disasters happening throughout the world. Such extreme weather conditions as floods in India and Louisiana, severe drought in California paralyze the life of entire states and have a harmful impact on the economy.


Weather risk management in the electrical power industry

Weather risk management in the electrical power industry

Risk management is an opportunity to prevent risk emergence, as well as to mitigate negative effects of different adverse situations. Weather risk is related to physical phenomena which can influence performance of a company and which cannot be controlled from company's side.

Influence of weather conditions on the electrical power industry

Influence of weather conditions on the electrical power industry

Weather phenomena have a substantial impact on safe operation of power systems, on modes of power generation and power consumption.

Influence of weather conditions on the electrical power industry is diversified. Here can be mentioned power lines as quite vulnerable objects. Power lines are affected by significant fluctuations in temperature, by ice and wind loads, by rapid freezing of wet snow, by showers and thunderstorms. Due to wind and ice there were cases of wire break on long distances of tens of kilometers, and also there were collapses of power lines supporting constructions. Thunderstorms can affect operation of urban substations, putting transformers and high-voltage equipment out of action.

The role of agrosystems in air pollution: satellite technologies suggest a solution

The role of agrosystems in air pollution: satellite technologies suggest a solution

Recently the issue of environmental pollution and of its consequence such as global warming has been highly discussed at different levels from mass media to heads of governments. United Nations conference on climate change which took place in Dec, 2015 in Paris, France obliged countries that use hydrocarbon fuels to decrease emission of greenhouse gases to the atmosphere, and this fact correlates with world economics looking toward implementation of use of renewable fuels. However this process is unacceptable and almost impossible for many countries at the moment. It goes without saying for such countries as Saudi Arabia, Venezuela and India, and even in the USA this decision of the Paris climate summit found its opponents.The denial of vital questions of climate change and global warming is similar to practice of "burying the heads in the sand." These issues do exist and take their toll on world economy not in the best way.

Impact of climate change on agriculture: problems and their solutions

Impact of climate change on agriculture: problems and their solutions

It is not news nowadays that the climate on earth is changing. And this change is not a long-term prospect, this is a process happening here and now. Consequences of it one can observe in this day and age. Climate change has a global impact on the human environment, nature, wildlife. And surely it also takes its strongest toll on economics. Agricultural sector turns to be the most vulnerable one to climate change. Many agricultural plants, on manufacture and market sale of which economics of some countries and large sectors of world trade are based, are extremely susceptible to weather changes; unexpected climate changes, not to mention here a process of global warming, can affect production of these plants in the most disastrous way. In its turn this process can directly influence the majority of population of export countries, where cultivation of these plants is basically the only source of income, and in some cases the main element of the food supply.

Unity of satellite and weather data to battle fires

Unity of satellite and weather data to battle fires

Meanwhile space dimension technologies highly evolve and artificial space satellites explore other planets for decades already, satellite technologies for observing the surface of our planet also become more complicated. With analysis of data received from satellites one can if not solve entirely then as minimum contribute to solving of global issues in many aspects of human life such as agriculture, logistics on ground surface and in open water, environmental pollution, etc.

Map Editor 2.0: Map with bike routes

Map Editor 2.0: Map with bike routes

There are many online map services for those who prefer active leisure. For example, here is a map with bike routes http://www.thunderforest.com/maps/opencyclemap/ You can read about it here - https://habrahabr.ru/post/131466
Route maps are extremely useful! Also while choosing a route it would be beneficial to know the weather in a region of your travelling. Surely we can check weather with http://openweathermap.org. And what if we combine a bike route map and weather data from OpenWeatherMap? Eureka!
MapEditor 2.0 can help us with that!

                    

                


OpenWeatherMap in the Magic Mirror

OpenWeatherMap in the Magic Mirror

Meet the fantastic project Magic Mirror where OpenWeatherMap data used to get forecast and current weather displayed right on a mirror surface!

Historical OWM weather data to define risks and plan business on agriculture market

Historical OWM weather data to define risks and plan business on agriculture market

In frames of cooperation with Belaya Dacha group with the aim to define risks while planning business in areas that were not cultivated before, OpenWeatherMap has provided historical data for the period of 5 years of two hard-to-reach locations of South Ossetia and Abkhazia.

Belaya Dacha group ( http://www.bdsalads.ru/) is a leader in the industry of ready-to-eat delicate green salads on the Russian market. At the moment the company plans to cultivate its own farmlands, and the choice of region where plants will grow is one of the crucial questions.

 OpenWeatherMap has submitted the following weather data: the maximum and minimum values of temperature, possibility of hail and freezing rain. After analysis of these data, Belaya Dacha group has made its choice about the region of business conducting.

OpenWeatherMap weather app for the Bluesmart App 2.0

OpenWeatherMap weather app for the Bluesmart App 2.0

OpenWeatherMap weather app for the smartphone from http://bluesmart.com/, which allows you to track the journey of your baggage worldwide.

Bags embedded with digital technology are capable of amazing things. They can be controlled remotely from your smartphone and come with technology to track your bag, outlets to charge your devices, a built-in scale, and secure remote digital lock. Some say technology has taken one small step for luggage, one giant leap for travelers.

“We have made a decision to integrate OpenWeatherMap for two main reasons. First was the most efficient cost we could get in the market. On the other side, the flexibility to adapt the service/product to our app made it perfect to get the results our developers and designers were looking for to achieve the best user experience.”
(c) Pablo Mendonça, Business Developer, Bluesmart."

Map Editor 2.0 is the newest version of our tool for customization of weather maps

Map Editor 2.0 is the newest version of our tool for customization of weather maps

And again OpenWeatherMap is here happy to announce our new useful and smart tool Map Editor 2.0! It allows you to create personalized weather maps on the basis of OpenWeatherMap’s data. Map Editor 2.0 provides a great variety of interface tools: you can choose peculiar weather phenomena and adjust its colour display. And like usually all these go in open access.To get this tool simply log in to your account or create a new one. Be ready to become a weather pro!

Use of satellite technology for decreasing risks in agriculture. NDVI index.

Use of satellite technology for decreasing risks in agriculture. NDVI index.

The exploration of outer space and launching of satellites started in the 1960s. Having some romantic flair in the beginning, the satellite story went on and nowadays satellites are launched often and almost everywhere around the globe and their number is going to grow in the future. Together with that, a new question arose, what to do with a bunch of new information received? A huge lot of information has been gained in the satellite era, but its practical appliance can be seen only in certain spheres of economics.

A new service for the comparison of weather data

A new service for the comparison of weather data

This is interesting service where you can compare using the graphs provided the weather from various weather providers in some major cities. http://weatherchecker.org/

This is very interesting, because sometimes when you watch the weather forecasts from different companies it’s discouraging that they are quite different from each other. And it’s not clear whom to believe to. This is especially annoying when planning long trips, when you need to bring a raincoat, warm sweater and waterproof shoes when focusing on one provider, and if you focus on the other - the sunscreen and sunglasses. It still shows few cities and compares weather for today and few past days, but it is enough to have overall high-level picture.

To be able to see and compare the weather you can choose from drop-down list the city and the desired dates.

Peculiarities of weather forecast for agriculture

Peculiarities of weather forecast for agriculture

No doubt weather is the most important factor determining whether an agricultural enterprise is successful or not. Changes in the weather greatly affect growth, state and amount of crops, its disease incidence, its need for water and fertilizers. Not only plants, but also a whole agricultural market highly depends on weather. Directly and due to some sideway reasons, weather is guilty of loss of the annual world crop in the amount of its three out of four! A mistake in weather forecast can result in crop loss.

Air pollution: ways to forecast and calculate it

Air pollution: ways to forecast and calculate it

In recent years, the fight against air pollution has become global. Humanity, at least when we are speaking about developed countries, starts to realize finally that the Earth is our common home which can get not suitable for living in the near future. Atmospheric pollution takes place when substances harmful for living creatures diffuse throughout the surrounding air, and then this destructive activity has its toxic impact later since it causes global changes of climate of the Earth.

Big Data and analytical systems. OpenWeatherMap data on air pollution for exact forecasts

Big Data and analytical systems. OpenWeatherMap data on air pollution for exact forecasts

In recent years, the situation with air pollution is becoming more alarming and attracted the attention of leading media and politicians at the highest level. This is especially true of large cities such as Beijing, Los Angeles, Mexico City, Tehran, Johannesburg and other densely populated settlements, which are under the influence of various risk factors, such as dense traffic, the presence of air polluting enterprises located poorly in terms of ecology, where pollution levels sometimes exceed all standards many times.

Vitamin D and ultraviolet radiation. Myths and Reality

Vitamin D and ultraviolet radiation. Myths and Reality

And in the dark and cold winter months, when so little of the sun and all sorts of colds and viruses diseases await around every corner, and in the hot and sunny summer, when it is so easy to burn in the scorching sun, the most important factor for the maintenance of immunity is a high level of vitamin D in the body, which depends on the amount of ultraviolet radiation received. On this subject numerous studies have been conducted, which often contradict with the data, once considered immutable fact and the resulting recommendations are often diametrically opposed to those given earlier. You've probably seen some vague guidelines, such as the recommendation to be in the sun, "a few minutes every day." But these recommendations are too general to be useful. The amount of the sunlight, which is necessary to satisfy the requirement for vitamin D varies greatly depending on your location, skin type, season, time of day, and even atmospheric conditions.

OpenWeatherMap: Big Data on guard of your health. Vitamin D and ultraviolet radiation

OpenWeatherMap: Big Data on guard of your health. Vitamin D and ultraviolet radiation

How much of sunlight is sufficient for vitamin D generation? More than commonly believed. According to recent studies, at least 50% of the world population has deficit in vitamin D. People who live in areas with a small number of sunny days per year and / or a high degree of air pollution are at increased risk of getting vitamin D deficiency and its related diseases. A growing number of studies indicates that vitamin D plays an important role in the prevention of many diseases

OpenWeatherMap: the importance of obtaining accurate data - API data on environmental pollution

OpenWeatherMap: the importance of obtaining accurate data - API data on environmental pollution

The process of air pollution has been going on not the first millennium, but never before had it been so intense like in recent decades.

The results did not keep us waiting; urban environmental issues (in Beijing for the second time in December a "red" level of anxiety is declared because of the smog), depletion of the ozone layer, which protects Earth's surface from the harmful for all living ultraviolet radiation, global warming, entailing an increase in global sea level, which can have catastrophic consequences for all mankind.

API for Global UV Index: how weather data protects you from UV radiation effects

API for Global UV Index: how weather data protects you from UV radiation effects

Global Ultraviolet index (UV index), a measure of UV radiation levels, was developed and recommended by the WHO as a way of warning the population about the dangers of UV rays on health, helping people understand the need to use sunscreen. Open Weather Map created quick and simple APIs, which developers can use to create a variety of easy-to-use applications that could be useful for both promotional and marketing media within the tourism industry as well as for individual travelers planning a trip to tropical destinations.

New air pollution APIs

New air pollution APIs

New air pollution APIs.

Taking into account great importance of climate change issue OpenWeatherMap would like to make their own contribution into making this world the better place. 

The first version of API includes several data sets: CO (carbon), NO2 (nitrogen dioxide), O3 (ozone), SO2 (sulfur dioxide)

We hope that air condition data, current  and historical, give you a great opportunity to create variety of new applications and analytic services to keep an eye on what we breath in real time and if there any improvement over time. 

UV-index. Environmental factors that influence the UV level

UV-index. Environmental factors that influence the UV level

Sunburn is traditionally considered an indicator of the attractiveness and a symbol of good health. Small amounts of UV are beneficial for people and essential in the production of vitamin D and serotonin, which is responsible for mood and overall vitality.Prolonged human exposure to solar UV radiation may result in acute and chronic health effects on the skin, eye and immune system. Over the longer term, UV radiation induces degenerative changes in cells of the skin, fibrous tissue and blood vessels leading to premature skin aging, photodermatoses and actinic keratoses. In the most serious cases, skin cancer and cataracts can occur.