Monday, 23 January 2017
4E (Washington State Convention Center )
Accurate high-resolution specification of sea surface temperature (SST) is important for regional weather forecasting studies and coastal ocean applications. Recent studies have shown that the use of coarse resolution SST products such as from the real-time global (RTG) SST analysis or other coarse resolution once-a-day products do not properly portray the diurnal variability of fluxes of heat and moisture from the ocean that drive the formation of low level clouds and precipitation over the ocean. High resolution regional coverage of accurate SST variability is also important for hurricane and tropical storm intensity forecasts and verification of ocean circulation models. In previous work, weather model forecasts were improved using high-resolution SST data produced with a polar orbiting data compositing technique, which provided spatially continuous, accurate, high-resolution SST fields using data from the Moderate-resolution Imaging Spectrometer (MODIS) on NASA’s Terra and Aqua satellites. Real-time generation of an enhanced SST product at NASA’s Short-term Prediction Research and Transition (SPoRT) Center began in the early 2010s. This product is distributed to partners within the National Weather Service and the private sector for modeling and situational awareness. This enhanced product has led to reduced product latency and better error weighting schemes. With the launch of the Visible Infrared Imaging Radiometer Suite (VIIRS), this additional high-resolution imager data set is now available for real-time ingest into the SPoRT SST Composite product. The inclusion of VIIRS will provide even further reduced latency and an ability for the SPoRT SST product to extend beyond the lifetime of MODIS. This presentation will outline recent updates to the SPoRT SST product, demonstrate examples of the new product and its uses, and describe a new data delivery and visualization capability using web map services.
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