Weather news

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

- 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