Weather news

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. 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

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.

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!

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.