Calibrated SAR data
After the ingestion, an initial processing is performed to calibrate the radar EO data harvested from COS-2 notification and make it ready for further generic processing as a Dataset.
In the ESA Charter Mapper the calibration of multi-mission SAR input products is done in systematic and is accomplished during the acquisitions ingestion process.
SAR calibrated Datasets are pre-processed EO data data products with physical meaning quantities (sigma nought) which enables a faster thematic processing by applying common operations according to the sensor type. A SAR calibrated Dataset includes both Sigma Nought single-band assets and visual products derived from them offered as multi-band overview assets.
As a result, in the Charter Mapper implemented by ESA multiple SAR Calibrated Dataset are then available to the user as analysis ready data for visualization at full resolution and/or on-demand processing to generate Value Added Products.
A description of the Radar Products Calibration systematic service is available here.
More details about the calibration workflow employed for multiple SAR mission are available here.