ESVI shows the spatial variability of fresh biomass on cropland over the season within one scale. The values range from 0 – 100 and correlate quite well with optical NDVI and other biomass indices.

SAR measures structure and humidity of the surface. The signal can be transformed in an index that represents fresh biomass.

The ESVI can be used for decision making in precision farming or crop monitoring for crop insurance or disaster management.

The map product can be delivered for single crop-types on field level or over all crop-types on regional level.

Color Composite

The color composite is purely derived from single date Sentinel-1 SAR data.

It gives a high contrast and shows different zones within single plots.

This map product is easy to perceive due to its natural color coding.

It is the ideal map product for farm managers, crop insurance underwriters and investors to understand what is going on the farms.


SWI (SAR water index)

The map product shows the moisture content in the vegetation and topsoil.

The data were tested against the NDWI (Gao) and correlate very well with this optical index.

The product is suitable for large-scale drought monitoring. It reliably indicates a deficit in precipitation.

It is suitable for use in irrigation management.


A data delivery consists of the 3 map products Color Composite, ESVI and SWI.

We always process 10 successive acquisitions for each delivery. The customer receives all data from one processing step and can stagger the data deliveries freely.
However, in order to obtain a consistent time series, the intervals between two deliveries must not exceed 8 successive acquisitions.

In the processing chain we always process entire frames. One frame has an area of approx. 240×200 km. It should be noted that the parallel orbits have a certain overlap, which increases towards the polar caps.

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  • cropix, Kronenbergstrasse 7, CH-8800 Thalwil
  • 00 41 76 – 749 22 77
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