Agricultural Analytics
Daily LAI
TalkingFields Daily LAI
The TalkingFields Daily LAI service provides daily values of green leaf area in m²/m². Innovative algorithms fill cloud and image gaps and thus allow the daily provision of leaf area values in 10x10m resolution.
The green leaf area is derived from satellite data using the SLC radiative transfer model.
The use of the radiative transfer model allows the derivation of physical values, in this case the green leaf area of the plant stands in m²/m². Due to the significantly more complex analysis of the satellite data in the radiative transfer model, which uses all the available acquisition bands of the optical satellite data, much more precise values can be extracted than with the NDVI, which only roughly indicates whether there is more or less biomass at a particular location.
Thus, radiative transfer modelling allows an exact derivation of the green leaf area even with high biomass growth.
Where the NDVI is already saturated, the green leaf area derived with SLC continues to show the biomass differences in the area.
Comparison of the derived green leaf area to the NDVI of the same scene.
The green leaf area, derived with the SLC radiation transfer model, reliably reproduces the patterns in the area even at high stand densities.
Comparison of the derived green leaf area to the NDVI of the same scene.
The green leaf area, derived with the SLC radiation transfer model, reliably reproduces the patterns in the area even at high stand densities.
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The service is provided as a WMS service with Time Dimension.
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It can be integrated into any platform or software to provide valuable highly up-to-date information.
Daily LAI Germany 2023 – Demo
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