The accuracy of SST retrievals from AATSR: An initial assessment through geophysical validation against in situ radiometers, buoys and other SST data sets

Sie sind hier: Homepage > Suche

The accuracy of SST retrievals from AATSR: An initial assessment through geophysical validation against in situ radiometers, buoys and other SST data sets

Corlett, G.K. / Barton, I.J. / Donlon, C.J. / Edwards, M.C. / Good, S.A. / Horrocks, L.A. / Llewellyn-Jones, D.T. / Merchant, C.J. / Minnett, P.J. / Nightingale, T.J. / ... [mehr]

Abstract

AbstractThe Advanced Along-Track Scanning Radiometer (AATSR) was launched on Envisat in March 2002. The AATSR instrument is designed to retrieve precise and accurate global sea surface temperature (SST) that, combined with the large data set collected from its predecessors, ATSR and ATSR-2, will provide a long term record of SST data that is greater than 15 years. This record can be used for independent monitoring and detection of climate change. The AATSR validation programme has successfully completed its initial phase. The programme involves validation of the AATSR derived SST values using in situ radiometers, in situ buoys and global SST fields from other data sets. The results of the initial programme presented here will demonstrate that the AATSR instrument is currently close to meeting its scientific objectives of determining global SST to an accuracy of 0.3K (one sigma). For night time data, the analysis gives a warm bias of between +0.04K (0.28K) for buoys to +0.06K (0.20K) for radiometers, with slightly higher errors observed for day time data, showing warm biases of between +0.02 (0.39K) for buoys to +0.11K (0.33K) for radiometers. They show that the ATSR series of instruments continues to be the world leader in delivering accurate space-based observations of SST, which is a key climate parameter.

Zugriff

Zugriff prüfen

Verfügbarkeit in meiner Bibliothek prüfen

Bestellung bei Subito €

Exportieren, teilen und zitieren

Dokumentinformationen

Titel :

The accuracy of SST retrievals from AATSR: An initial assessment through geophysical validation against in situ radiometers, buoys and other SST data sets

Beteiligte:

Corlett, G.K. (Autor:in) / Barton, I.J. (Autor:in) / Donlon, C.J. (Autor:in) / Edwards, M.C. (Autor:in) / Good, S.A. (Autor:in) / Horrocks, L.A. (Autor:in) / Llewellyn-Jones, D.T. (Autor:in) / Merchant, C.J. (Autor:in) / Minnett, P.J. (Autor:in) / Nightingale, T.J. (Autor:in)

Erschienen in:

Advances in Space Research ; 37 , 4 ; 764-769

Erscheinungsdatum :

2005-09-12

Format / Umfang :

6 pages

ISSN :

0273-1177

DOI :

https://doi.org/10.1016/j.asr.2005.09.037

Medientyp :

Aufsatz (Zeitschrift)