HR: 17:00h
AN: H22H-05    [PDF]
TI: Global optimum interpolated microwave SSTs from Aqua's AMSR-E improve hurricane intensity forecasting
AU: * Gentemann, C L
EM: gentemann@remss.com
AF: Remote Sensing Systems, 438 First Street, Suite 200, Santa Rosa, CA 95401 United States
AU: DeMaria, M
EM: DeMaria@cira.colostate.edu
AF: NOAA NESDIS RAMM, CIRA--Foothills Campus West Laporte Ave Colorado State University, Fort Collins, CO 80523 United States
AU: Wentz, F J
EM: wentz@remss.com
AF: Remote Sensing Systems, 438 First Street, Suite 200, Santa Rosa, CA 95401 United States
AB: NASA launched the Earth Observing System (EOS) AQUA spacecraft on May 4, 2002. One of the instruments onboard is NASDA's Advanced Microwave Scanning Radiometer Earth Observing System (AMSR-E), the first polar orbiting microwave radiometer capable of measuring accurate global through-cloud sea surface temperatures (SST). Although microwave SSTs have a lower spatial resolution than the more traditional infrared SSTs, their thru-cloud SST capabilities significantly improve coverage. Retrieval of SST is prevented only in regions affected by sun glitter, rain, or nearby land. As compared to Reynolds OI SSTs, AMSR-E SSTs have a mean bias of 0.001 C and a standard deviation of 0.73 C. The sun glitter and rain-missing data are `filled in' using optimum interpolation (OI) to create global, daily, near-realtime SSTs at 25 km resolution. OI SSTs are useful to numerical weather prediction and research activities in which a complete, daily SST map is preferred to one with missing data due to orbital gaps or environmental conditions precluding SST retrieval. The value of these OI SSTs was recently tested in the Statistical Hurricane Intensity Prediction Scheme (SHIPS) model run operationally by the National Hurricane Center. This model is usually run with 100 km weekly SSTs, by substituting the higher temporal and spatial resolution of MW OI SSTs in the model, forecast accuracy was improved up to 1.3% in the North Atlantic and 6.9% in the East Pacific for 2002 storms.
UR: http://www.remss.com
DE: 3339 Ocean/atmosphere interactions (0312, 4504)
DE: 4275 Remote sensing and electromagnetic processes (0689)
DE: 4504 Air/sea interactions (0312)
SC: Hydrology [H]
MN: 2003 Fall Meeting