Sentinel Hub powering

Home > Blog > Sentinel Hub powering
NDVI values

Agriculture in the 21st century faces multiple challenges: it has to produce more food and fibre to feed a growing population. Due to increasing pressure on arable land a substantial need to improve efficiency in the farming sector has emerged.

The Sentinel-2 mission represents a unique opportunity: its 10-20m spatial resolution, 5-day revisit frequency and its global coverage, offer new opportunities for regional to global agriculture monitoring and precision farming.

The Knowledge Centre for Agriculture and the Danish Pig Research Centre (SEGES) in cooperation with Swedisy company Dataväxt have prepared a web based application CropSAT, which helps farmers by providing NDVI values for fields in Denmark and correspondingly lets them know which areas of their fields need more work and fertilizer.

The Sentinel Hub Processing Enginge provides CropSAT with the latest atmospherically corrected NDVI values for Denmark's fields as soon as new satellite data becomes available. Data is clipped to areas where there are fields and only when it is of proper quality, skipping clouds and other anomalous areas. To further optimize usefulness and prevent problems with spill on and near parcel borders, the NDVI values get calculated only within the interior of the parcel and are then extrapolated to the boundary.

The normalized difference vegetation index (NDVI) is useful in agriculture due to its ability to differentiate thriving plants from not so healthy ones.

CropSAT NDVI values

NDVI values for fields lets farmers know which areas of their fields need more work and fertilizer. The yellow color shows low bio-mass and the green high biomass.

CropSAT NDVI info

This page shows details about nitrogen distribution.

The following SEGES video shows the system in use: