tuw_logoSentinel-1 Data Composites are created by the Remote Sensing Group of EODC partner TU Wien.

A fully customized pre-processing chain is applied to the Sentinel-1 Level 1 SAR data, including calibration, georeferencing, terrain correction, format conversion and compression, quality control, etc. The resulting backscatter data are used and delivered as combinations of either different polarisations (e.g. V/V + V/H) and timely averages (e.g. monthly or seasonal). Additionally, false colour composites are created (e.g. RGB combinations of different polarisations at different times of year). Due to the nature of their visual impression, these composites nicely show the characteristics of the sensor to identify different types of land cover.

This service delivers mosaics created from the various time and polarization composites. By default, the RGB composites are delivered, but depending on the user’s choice, also the underlying original backscatter data in their respective polarizations can be downloaded.

Processing is achieved in the EODC EO processing portal. Access to the service is currently only open to EODC partners. 

Left: Landsat-8 RGB image of London area, UK. Middle: False colour composite (RGB) of Sentinel-1 backscatter data over London area, UK. Red band shows mean of backscatter (VH) during summer (Jun-Jul-Aug), Blue band shows mean of backscatter (VH) during winter (Dec-Jan-Feb), and Green bandshows the ratio of the Red and Blue band (mean_summer/mean_winter). Right: False colour composite (RGB) of Sentinel-1 backscatter data over London area, UK. Red band shows mean of backscatter (VV) during winter (Dec-Jan-Feb), Blue band shows mean of backscatter (VH) during winter (Dec-Jan-Feb), and Green band shows the ratio of the Red and Blue band (mean_summer/mean_winter). This composite highlights the variation of backscatter due to different polarizations.

Left: Landsat-8 RGB image of London area, UK.
Middle: False colour composite (RGB) of Sentinel-1 backscatter data over London area, UK. Red band shows mean of backscatter (VH) during summer (Jun-Jul-Aug), Blue band shows mean of backscatter (VH) during winter (Dec-Jan-Feb), and Green band shows the ratio of the Red and Blue band (mean_summer/mean_winter).
Right: False colour composite (RGB) of Sentinel-1 backscatter data over London area, UK. Red band shows mean of backscatter (VV) during winter (Dec-Jan-Feb), Blue band shows mean of backscatter (VH) during winter (Dec-Jan-Feb), and Green band shows the ratio of the Red and Blue band (mean_summer/mean_winter). This composite highlights the variation of backscatter due to different polarizations.

If you have any question regarding the processing portal or the service, contact us!