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A new blended high-resolution real-time global sea surface temperature analysis (RTGSST), developed specifically for use in operational numerical weather forecasting models, was implemented in NCEP's operational job stream on 30 January 2001, immediately following investigations of miss-forecast precipitation events in the mid-Atlantic states. Each daily analysis uses the most recent 24-h receipts of in situ and satellite-derived surface temperature data and provides a global SST field on a 0. 5° × 0. 5° (latitude-longitude) grid. The RTGSST provides the sea surface temperature fields for the regional Meso Eta Model, replacing the previously used National Environmental Satellite, Data, and Information Service (NESDIS) 50-km satellite-only SST analysis. Forecast events leading to the implementation of the RTGSST are described; comparison is made of the properties used in this new analysis with those of the Reynolds-Smith (RS) analysis and the NESDIS 50-km analysis; data ingestion, analysis, and verification components of the RTGSST are reviewed; and analysis-related products and data that are available via the NCEP Web site are referenced.
Thiébaux et al. (Thu,) studied this question.