CMEMS Med-PHY updates Due to SST L4 satellite ...
Transcript of CMEMS Med-PHY updates Due to SST L4 satellite ...
CMEMS Med-PHY updatesDue to SST L4 satellite product correction
26 / Oct / 2021
SST SATELLITE NRT DATA ISSUE
● Issues in SST_MED_SST_L4_NRT_OBSERVATIONS_010_004 product were identified on March 2021 and reported to SST Med-PU responsibles
● SST_MED_SST_L4_NRT_OBSERVATIONS_010_004 producers were aware of the issue which was caused by a bug in S3B post-proc. The bug was fixed and the product substituted in May 2021.
● A numerical experiment has been run in the Mediterranean Sea using the corrected SST to check the impact of the SST product correction
SST satellite product issues during 24 Feb 2021
Analysed L4 SST SST error L3S sensor coverage
Differences between old and correct SST L4 data averaged in the Med Sea
MED-PHY VALIDATION
Validation of the Med-PHY System has been carried out evaluating the skill of the operational system forced with ”corrupted” SST satellite data and the one of an equivalent experiment forced with the corrected (new) SST data. The model outputs have been compared to the corrected SST data in the period 2019-2020 by means of:
● RMSD and Bias of SST averaged in the whole period (2019-2020) for the Mediterranean Sea and 16 sub-regions (slide 3-4)
● time-series of daily SST RMSD and Bias (slide 5)● time-series of weekly RMS misfits of Temperature, Salinity and Sea Level Anomaly (slide 6-7-8)
This validation shows a slight improvement of the surface temperature skill, but also a decreased temperature, salinity and sea level anomaly model misfits
SST EAN
SST RMSD: Validation wrt L4 SST corrected satellite data
Med-PHY forced with old SSTMed-PHY forced with corrected SST
SST EAN
SST BIAS: Validation wrt L4 SST satellite data
Med-PHY forced with old SSTMed-PHY forced with corrected SST
SST EAN: DAILY TIME SERIES
Med-PHY forced with old SSTMed-PHY forced with corrected SST
TEMPERATURE MISFIT
Med-PHY forced with old SSTMed-PHY forced with corrected SST
SALINITY MISFITS
Med-PHY forced with old SSTMed-PHY forced with corrected SST
SLA MISFITS
Med-PHY forced with old SSTMed-PHY forced with corrected SST