Using the ENVISAT (A)ATSR as a Reference Data Set for Operational Sea Surface Temperature Application
Abstract
The ENVISAT (Advanced) Along Track Scanning Radiometer (A)ATSR provides an extremely well characterised and calibrated data set of global coverage high resolution Sea Surface Temperature (SST) observations from 1992 to present. Within the activities of the Group for High Resolution SST (GHRSST, see http://www.ghrsst-pp.org), the (A)ATSR SST time series has been chosen by several international teams as a reference sensor to which other sensor SST data are adjusted for bias. This presentation reviews the requirements for a stable high-resolution SST data set and activities that have been undertaken to use the (A)ATSR record as a reference data set within the GHRSST. As part of the Met Office contribution to GHRSST, (A)ATSR is used as a reference data set to the Operational SST and Sea Ice Analysis (OSTIA) system which generates a 6.5km grid global coverage SST product each day based on complementary infrared and microwave satellite data together with in situ observations. In order for OSTIA to use the (A)ATSR as a reference sensor with confidence, a new scheme for the characterisation of (A)ATSR bias has been developed and applied to the (A)ATSR data set. Verification and validation of OSTIA, conducted at the European Centre for Medium Range Weather Forecasting (ECMWF) and the Met Office, United Kingdom to demonstrate the impact of (A)ATSR for operational global high resolution SST analysis used by ocean and weather forecasting teams will be reviewed. Finally, plans and requirements for a 20+ year re-analysis of multi-sensor SST satellite and in situ observations by the OSTIA system will be reviewed.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2008
- Bibcode:
- 2008AGUFMGC33A0754D
- Keywords:
-
- 1223 Ocean/Earth/atmosphere/hydrosphere/cryosphere interactions (0762;
- 1218;
- 3319;
- 4550);
- 1610 Atmosphere (0315;
- 0325);
- 1640 Remote sensing (1855);
- 3339 Ocean/atmosphere interactions (0312;
- 4504);
- 4954 Sea surface temperature