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Cited by 4,335

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Daily High-Resolution-Blended Analyses for Sea Surface Temperature

Open access
Reynolds, Richard W., Smith, Thomas M., Liu, Chunying, Chelton, Dudley B., Casey, Kenneth S., Schlax, Michael G.·2007·Journal of Climate

Abstract

Two new high-resolution sea surface temperature (SST) analysis products have been developed using optimum interpolation (OI). The analyses have a spatial grid resolution of 0.25° and a temporal resolution of 1 day. One product uses the Advanced Very High Resolution Radiometer (AVHRR) infrared satellite SST data. The other uses AVHRR and Advanced Microwave Scanning Radiometer (AMSR) on the NASA Earth Observing System satellite SST data. Both products also use in situ data from ships and buoys and include a large-scale adjustment of satellite biases with respect to the in situ data. Because of AMSR’s near-all-weather coverage, there is an increase in OI signal variance when AMSR is added to AVHRR. Thus, two products are needed to avoid an analysis variance jump when AMSR became available in June 2002. For both products, the results show improved spatial and temporal resolution compared to previous weekly 1° OI analyses. The AVHRR-only product uses Pathfinder AVHRR data (currently available from January 1985 to December 2005) and operational AVHRR data for 2006 onward. Pathfinder AVHRR was chosen over operational AVHRR, when available, because Pathfinder agrees better with the in situ data. The AMSR–AVHRR product begins with the start of AMSR data in June 2002. In this product, the primary AVHRR contribution is in regions near land where AMSR is not available. However, in cloud-free regions, use of both infrared and microwave instruments can reduce systematic biases because their error characteristics are independent.

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Crossref · 10.1175/2007jcli1824.1

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Metadata

Authors
Reynolds, R. W., Smith, T. M., Liu, C., Chelton, D. B., Casey, K. S., & Schlax, M. G.
Venue
Journal of Climate
Published
2007-11-15
Volume
20
Issue
22
Pages
5473-5496
ISSN
  • 0894-8755 (ISSN-L)
  • 1520-0442
OpenAlex
W2131070146
Cited by
4,335
References
2
FWCI
34.81
Type
journal article
Language
en
Open access
bronze

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