IRSPP v1.2 released

This is an update release of the InfraRed Sounder Pre-processor (IRSPP). Changes have been made to ensure compatibility with the set of MTG-IRS test data that was issued by EUMETSAT in November 2022. Also, some extra thinning options have been provided. For details, please see the Release Note on the IRSPP web page.

RTTOV v13.2 released

RTTOV v13.2 has been released. Updates from v13.1 include: new MFASIS neural network fast solver for visible/near-IR cloud radiances, alternative physically-based treatment of polarisation applicable to cross-track scanners and imagers in RTTOV-SCATT, new microwave sea surface emissivity model SURFEM-Ocean based on new community physical surface model PARMIO, new option to input per-channel effective skin temperatures, new option to account for molecular depolarisation in the Rayleigh phase function, new subroutines to compute solar zenith and azimuth angles and geostationary satellite zenith and azimuth angles, and various other updates and improvements. See the RTTOV pages for more information.

PenWP v4.0 released

Version 4.0 of the Pencil beam scatterometer Wind Processor has been released. As compared to previous release 2.2, PenWP version 4.0 can process data from the Haiyang-2B/C/D satellites. The new NSCAT-4DS Geophysical Model Function is included for improved consistency between Ku-band wind retrievals and C-band wind retrievals and buoy winds. Sea Surface Temperature dependent adjustments to the backscatter can be applied to reduce wind speed biases. Improved and New Quality Control flags have been introduced. The backscatter calibrations have been tuned for the generation of climate data records from QuikSCAT, RapidScat and Oceansat-2. See the PenWP pages ( for more information. PenWP is a OSI SAF software.