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LRM Open Ocean TU DELFT Cryosat and Auxiliary Data

Coverage: Global
Time period: 01/01/2013 - 20/03/2013 (sub cycles 36-38)
Cryosat-2 data products used: ESA FDM and LRM L1B data

Description:
Data from the TU Delft RADS data-base are used. The following processing steps are applied:

  • Daily download FDM and LRM L1B data from ESA
  • Retrack waveforms to compute wave height, backscatter, range (MLE3-type retracker)
  • Merge data files (few to tens of minutes normally) into passes and sub-cycles of 29 days (à la GDR) in RADS
  • Use additional geophysical corrections from L1B
  • Overwrite and add common RADS geophysical corrections
    - SSB (in-house calculation)
    - Latest MSS models (DTU10, CNES-CLS11), geoid
    - Tides (FES2004, GOT4.8)
    - ECMWF and NCEP meteo, GPS and NIC09 iono, MOG2D IB
    - Off-line orbits from Delft, ESOC, CNES
  • Compute wind speed from backscatter (Abdalla)
  • Compute sea level anomalies from orbit - range - corrections

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