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Vegetation

Assessment of vegetation conditions

Maps of vegetation intensity assessment

Purpose: Assessment of vegetation condition, fields zoning for vegetation intensity.

Maps of vegetation intensity (30 m) are generated according to red, near infrared, middle infrared and thermal spectral channels of Landsat 8. Spatial resolution - 30 m. Temporal resolution - 16 days.

Maps of vegetation intensity (6,5 m) are generated according to red, red and edge near infrared spectral channels of RapidEye satellite imagery. Spatial resolution - 6.5 m. Temporal resolution – 1 day and more.

Map of vegetation intensity assessment of winter wheat growing season created by RapidEye data

Parameters of plant growth

Biomass growth maps

Purpose: Detection of problem areas of crop conditions within the entire farm and each field separately, as well as initial parameter in models of crop yields.

Simulated biogeophysical data of total biomass growth expressed in kg of dry substance per hectare daily. Product characterizes the rate of vegetation growth at global level, spatial resolution - 1000 m. The product is available every 10 days.

Biomass growth map

Maps of biomass assessment

Purpose: Qualitative assessment of plants biomass on the earth's surface according to remote sensing data. EVI allows evaluating plants state in terms of dense and sparse vegetation. Influence of soil and atmosphere on the value of this index is minimized.

Rasters of NDVI (Normalized Difference Vegetation Index) and EVI (Enhanced Vegetation Index). Maps are generated from Landsat 8, ASTER, Sentinel-2, RapidEye with spatial resolution of 30, 15, 10 and 6.5 m respectively.

Map of biomass assessment, NDVI

Maps of nitrogen contained in plant leaves

Purpose: Detection of problem areas of crops condition within the entire farm and each field separately, as well as the initial parameter in models of crop yields.

Rasters of Green Normalized Difference Vegetation Index (GNDVI) – an indicator of photosynthetic vegetation activity. Generated from Landsat and ASTER data with spatial resolution of 30 m and 15 m respectively.

Maps of biomass assessment

Purpose: The index is applied when assessing the oppressed and aging plants. It is effective when assessing the content of nitrogen in plant leaves according to multispectral data, which have red edge and near infrared spectral channels.

Maps of nitrogen contained in plant leaves - raster images of Normalized Difference Red Edge Index (NDRE) – an indicator of photosynthetic activity of vegetation cover. Generated from Sentinel-2 and RapidEye data with a spatial resolution of 10 m, and 6.5 respectively. Temporal resolution of NDRE from Sentinel-2 data – 10 days, from RapidEye – 1 day.

Map of nitrogen contained in plant leaves GNDVI

Maps of chlorophyll contained in plant leaves

Purpose: Assessment of a and b chlorophyll content in plant leaves according to multispectral remote sensing data, including satellite data which excludes red edge channel.

Maps of chlorophyll contained in plant leaves – raster images of ClGreen - indicator of photosynthetic activity of vegetation cover. Generated from 8 Landsat, ASTER, Sentinel-2 and RapidEye data with spatial resolution of 30, 15, 10 and 6.5 m respectively. Temporal resolution is determined by frequency of imaging system (1-16 days).

Maps of chlorophyll contained in plant leaves MCARI / OSAVI

Purpose: Assessment of a and b chlorophyll content in plant leaves according to satellite imagery with an red edge channel. Advantage of the index is possibility to minimize influence of underlying vegetation surface on the index value.

Maps of chlorophyll contained in plant leaves MCARI / OSAVI - raster image of chlorophyll index MCARI/OSAVI l (Modified absorption ratio index/Optimized Soil Adjusted Vegetation Index) - indicator of photosynthetic activity of vegetation cover. Generated from Sentinel-2 and RapidEye with 10m and 6.5 m spatial resolution respectively. Time resolution is determined by periods of imaging system (1-10 days).

Map of chlorophyll contained in plant leaves

Maps of absorption of photosynthetically active radiation intensity

Purpose: Detection of anomalous vegetation zones, assessment of the state and exposure to stress.

Photosynthetically active radiation (PAR) - part of short-wave or integrated solar radiation in 380-710 nm wavelength range which have the greatest value for physiological processes of plants and providing photosynthetic and thermal effects. FPAR product’s (MODIS) spatial resolution - 1000 m and time of updates - 4-8 days.

Maps of moisture contained in soil and plant leaves

Purpose: Assessment of heterogeneity degree of vegetation and soil moisture according to the remote sensing data, which have an mid-infrared channel. This index is more sensitive to moisture content in the soil and plant leaves in comparison with NDWI due to using mid-infrared channel.

Maps of moisture contained in soil and plant leaves – raster images of Normalized Difference Water index (NDWI). Values of spectral brightness in green and near-infrared spectral channels are used to calculate the index. Generated from ASTER and RapidEye data with a spatial resolution of 15 m and 6.5 m. Temporal resolution – less than 1 day.

Maps of the moisture content in the soil and leaves – raster images of Normalized difference moisture index (NDMI). Generated from Landsat 8 and Sentinel-2 data with spatial resolution of 30 m and 10 respectively. Temporal resolution is determined by the frequency used by the imaging system: 16 days for products obtained according to Landsat 8 data and 10 days - for products obtained according to Sentinel-2 data.

Map of moisture contained in soil and plant leaves (NDMI)

Maps of projective vegetation coverage

Purpose: Assessment of crop conditions and crop prediction modelling.

Maps of projective vegetation coverage – raster images of Leaf Area Index (LAI) – index which characterize area of projective vegetation coverage, as well as ability of plants to absorb solar radiation necessary for biomass formation. In addition this index allows estimating evapotranspiration volume. Generated from MODIS data with spatial resolution of 1000 m, and RapidEye data with spatial resolution of 6.5 m.

Map of projective vegetation coverage (LAI from RapidEye imagery)