Norut Tromsø, P.O. Box 6434, Tromsø Science Park, N-9294 Tromsø, Norway. Contact us
Powered by eZ publish
ERS Wave mission reprocessing – QC support - Envisat mission extension support, Progress Report No.1 - 2010
| Author | Johnsen, Harald, Collard Fabrice |
|---|---|
| Report no. | 8/2010 |
| Year | 2010 |
|
|
A limited number of ERS-2 WVW products are validated using collocated model wind field and wave spectra (WAM) provided by ECMWF. The ERS-2 data were recalibrated using collocated wind field from ECMWF. The new calibration constant is 48124.1 (or 46.82), which is around 0.2 dB lower than the external ASAR WM calibration constant used in MDA/ESA Level 2 processor.
After recalibrating the data, the Level 2 processing was done using the prototype software. The performance of the ERS-2 WVW products was then validated using WAM data.
The conclusion is that the overall quality of the ERS-2 WVW product is similar to the ASAR WVW product.
The small decrease in performance for some of the wave parameters (wave direction, waveheight) may come from the fact that the data sets are different.
Search web-site