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Evaluation of high-resolution ocean surface vector winds measured by QuikSCAT scatterometer in coastal regions

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dc.contributor.author Tang, Wenqing
dc.contributor.author Liu, W. Timothy
dc.contributor.author Stiles, Bryan W.
dc.date.accessioned 2008-08-08T22:38:22Z
dc.date.available 2008-08-08T22:38:22Z
dc.date.issued 2004-08-08
dc.identifier.citation IEEE Transactions On Geoscience And Remote Sensing, Vol. 42, No. 8, AUGUST 2004, dio:10.1109/TGRS.2004.831685 en_US
dc.identifier.clearanceno 04-1379
dc.identifier.uri http://hdl.handle.net/2014/40909
dc.description.abstract The SeaWinds scatterometer onboard QuikSCAT covers approximately 90% of the global ocean under clear and cloudy condition in 24 h, and the standard data product has 25-km spatial resolution. Such spatial resolution is not sufficient to resolve small-scale processes, especially in coastal oceans. Based on range-compressed normalized backscatter and a modified wind retrieval algorithm, a coastal wind dataset at 12.5-km resolution was produced. Even with larger error, the high-resolution winds, in medium to high strength, would still be useful over coastal ocean. Using measurements from moored buoys from the National Buoy Data Center, the high-resolution QuikSCAT wind data are found to have similar accuracy as standard data in the open ocean. The accuracy of both high- and standard-resolution winds, particularly in wind directions, is found to degrade near shore. The increase in error is likely caused by the inadequacy of the geophysical model function/ambiguity removal scheme in addressing coastal conditions and light winds situations. The modified algorithm helps to bring the directional accuracy of the high-resolution winds to the accuracy of the standard-resolution winds in near-shore regions, particularly in the nadir and far zones across the satellite track. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher IEEE en_US
dc.subject Coastal ocean en_US
dc.subject scatterometer en_US
dc.subject vector wind en_US
dc.title Evaluation of high-resolution ocean surface vector winds measured by QuikSCAT scatterometer in coastal regions en_US
dc.type Article en_US


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