GIS WebServer AGRO supports the vegetation indices CVI and EVI at the analysis of satellite monitoring

23.07.2018

GIS WebServer AGRO version 2.6 was developed in KB "Panorama". In the new version the tools of satellite monitoring of fields support the viewing of the vegetation indices CVI and EVI. The ability to accumulate the results of building zoning maps is added.

The CVI index (vegetation index of chlorophyll) has an increased sensitivity to the chlorophyll content in the foliage and is used from the beginning to the middle of the crop growth cycle. The EVI (Advanced Vegetation Index) index is used to assess the variability of development of crops in the growth stage with high biomass. Zoning maps are a synthesis of selected vegetation maps and soils on the basis of satellite images of high accuracy (10 m and 30 m) at different periods and under different climatic influences, which in turn determine the sustainably allocated agronomic zones on the field. Analyzing archival satellite imagery of past seasons, a potentially possible distribution of plant biomass is modeled. Zoning maps can identify problem areas on the map of fields, develop measures to increase productivity, and accurately predict crop yields.

The collection and processing of satellite imagery for satellite monitoring's data is carried out by Geosys company. Data of satellite monitoring is loaded from web service of the company and is accumulated in information base the GIS "Panorama AGRO" with a binding to a field's contour. The data obtained make it possible to understand the true cause of the problems of each field and to promptly influence the growth of plants throughout the season. In GIS WebServer AGRO, the viewing and analysis of vegetation indexes matrixes from a single agricultural enterprise base has been expanded and structured. As a source of spatial data, GIS WebServer AGRO uses the multiplatform cartographical service GIS WebService SE. Data exchange with the service is performed according to international open standards OGC: WMTS, WMS, WCS and WFS. The maps placed on the GIS Server can be a source of the data for service the GIS WebService SE. The map layers published from the server reflect the current state of the spatial data base in the time mode close to the real one.


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