During an ESA-sponsored study in 2018-2019, Surrey Satellite Technology Limited (SSTL) and the National Oceanography Centre (NOC) have been collaborating to improve the L1B to L2 inversion accuracy for TDS-1 data.
The output of this work is an upgraded Calibrated Bistatic Radar Equation (C-BRE) processor (v1.0). This algorithm has been integrated into MERRByS and used to re-process the back catalogue of TDS-1 measurements.
The improvements over C-BRE v0.5 include:
- Application of dual on-board / Antarctic radiometric calibration, increasing data coverage
- An ice detection algorithm allowing data up to ice edges, and a new flag for presence of ice
- Improved corrections for variation in GPS transmit powers
- Improved flagging of processor and RFI anomalies
The data is available from the MERRByS FTP server in the data folder labelled “L2_CBRE_v1_0”. This folder can be found here.