The 2008 MARS annual conference “Geomatics in support of the CAP” – the fourteenth of the series – was held in collaboration with the Slovenian Ministry of Agriculture, Forestry and Food, at the Cankarjev Dom in Ljubljana. The conference run over three days, from 3 to 5 December 2008.
Gisat, the national contractor for the control with remote sensing (CwRS) of area based agricultural subsidies, has presented its experiences with use of TerraSAR-X data for crop discrimination.
The presentation gave a general overview of the test case study on the use of TerraSAR-X data within CwRS, with particular emphasis on land use detection. The test performed was based on standard procedures of CwRS campaign.
The data set used in the study included TerraSAR-X SpotLite and multi-temporal TerraSAR-X StripMap in single polarisation (5th May, 18th June, 3rd September 2008). The authors presented the results of the case study that was performed in two steps: initially geometrical checks were performed and then TerraSAR-X images were used within CAPI.
Brief description of the first step included: documentation of orthorectification procedures, standard tables reporting quantitative summary of geometrical accuracy (RMS), and qualitative visual checks of the images against LPIS.
The next main part of the case study described test on TerraSAR-X multi-temporal image use within CAPI. There were defined several topics to be addressed. These include discrimination of arable crops, grassland, parcel boundaries detection and detection of non-eligible use indicating e.g. abandoned land. Test on these topics was performed by standard procedures, input and auxiliary data using dedicated software environment.