Colour composite of SAR images taken over the AGRISAR test site. The frequent revisit capabilities of Sentinel-1 are expected to greatly enhance land-use mapping applications making use of SAR data. This is illustrated in the colour composite image, which represents three acquisitions within a period of about 2½ weeks at the beginning of the growing season. The different colours reflect the crop type and change in crop condition during this short time period. The polarisation in this case is C-HV.