Dear MERRByS Users,
The entire MERRByS system will be taken offline for planned server upgrades between 10/02/2020 – 14/02/2020 inclusive.
We apologise for the inconvenience. The work has been completed.
Many thanks
The MERRByS Team
First GNSS-R Sea Ice Level 2 Product Released
The first sea ice product on MERRByS from the TDS-1 satellite GNSS-R data catalogue has been released, and is now available on the FTP server. Surrey Satellite Technology Limited (SSTL) and the National Oceanography Centre (NOC) recently released v1.0 of the Calibrated Bistatic Radar Equation (C-BRE) processor, which provides a number of new and improved features including a novel GNSS-R Sea Ice Detection Algorithm (GSID). The output from this algorithm has been formatted into a Sea Ice product, and can be found here under “L2_CBRE_v1_0_GSID”. An updated product manual can be found here on the documentation page. We would be keen to hear feedback from users about this new capability.
A month by month availability web page has been set up to allow users to quickly view the historical ice data and can be found here.
NOC C-BRE v1.0 L2 Data Released
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.
An updated product manual describing the new C-BRE v1.0 Level 2 outputs can be found on the documentation page.