New Processing Baseline for Sentinel-3 SRAL data

A new Processing Baseline for SRAL L1 and L2 data will be released on 4 April.

Thursday, 22 March 2018

New Processing Baseline for Sentinel-3 SRAL data

The new SRAL Processing Baseline will contain the following updates and corrections:

SRAL L1:

  • SRAL acquisition mode: In case the altimeter entered acquisition mode during the period covered by a product, a new netCDF file will be available within the L1B product folder. The netCDF file name is acquisition.nc.
  • Information about the ascending node time and longitude will be more accurately recorded in the manifest files.
  • Run time anomalies have been fixed.

SRAL L2:

  • Correction of a 5 mm bias between the modelled dry tropospheric correction at zero-altitude (mod_dry_tropo_zero_altitude_01) and modelled dry tropospheric correction at the measurement altitude (mod_dry_tropo_meas_altitude_01).
  • Several fixes for LRM mode, important during Sentinel-3B commissioning; SAR mode data are not affected by these fixes.
  • Information about the ascending node time and longitude will be more accurately recorded in the manifest files.
  • C Band Corrected Longitude (lon_cor_20_ku) and C Band Corrected Latitude (lat_cor_20_ku) now are defined everywhere as in Ku Band. They are computed over Greenland and Antarctica surfaces and filled with the uncorrected latitude over other surfaces.
  • Run time anomalies have been fixed.

Product Notices:
S3 Product Notice – Altimetry L1
S3 Product Notice – Altimetry L2

For more information, contact our User Service Helpdesk.

 
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