A new method for the validation of altimeter-derived sea state parameters with results from wind and wave models

摘要: A new approach for the validation of altimeter-derived sea state parameters using data from wind and wave models is proposed. Wind speeds significant heights (SWH) acquired with Geosat altimeter over North Atlantic are compared analysis European Centre Medium-Range Weather Forecasts (ECMWF) atmospheric model hindcast VAG week October 12–19, 1987. The statistical results this 1-week set agree those a 7-month comparison study between 43 National Data Buoy Center (NDBC) buoys. An advantage large number points which allows an investigation high conditions analyses by binning in various ways. underestimation SWH altimeter, hindcast, confirmed shown to be proportional SWH. In order use hindcasts validate parameters, method improve This relies on comparisons that simultaneously available data. Tests show validity method. Applied three algorithms, Brown, smooth Chelton-Wentz, these tests differences algorithms function speed range indicate derived Brown algorithm (which already best buoy data) also ECMWF 10-m fields.