Evaluation of high-resolution surface wind products at global and regional scales
Authors: Bentamy, A.; Croize-Fillon, D.; Queffeulou, P.; Liu, C.; Roquet, H.
Source: Journal of Operational Oceanography, Volume 2, Number 2, August 2009 , pp. 15-27(13)
Publisher: IMarEST
Abstract:
High resolution surface wind fields covering the global ocean, estimated from remotely sensed wind data and ECMWF wind analyses, have been available since 2005 with a spatial resolution of 0.25° in longitude and latitude, and a temporal resolution of 6h. Their quality is investigated through various comparisons with surface wind vectors from 190 buoys moored in various oceanic basins, from research vessels and from QuikSCAT scatterometer data taken during 2005-2006. The NCEP/NCAR and NCDC blended wind products are also considered. The comparisons performed during January-December 2005 show that speeds and directions compare well to in-situ observations, including from moored buoys and ships, as well as to the remotely sensed data. The root-mean-squared differences of the wind speed and direction for the new blended wind data are lower than 2m/s and 30°, respectively. These values are similar to those estimated in the comparisons of hourly buoy measurements and QuikSCAT near real time retrievals. At global scale, it is found that the new products compare well with the wind speed and wind vector components observed by QuikSCAT. No significant dependencies on the QuikSCAT wind speed or on the oceanic region considered are evident.Document Type: Research article
Publication date: 2009-08-01
- The Journal of Operational Oceanography is the only international peer reviewed journal that links the latest research in marine science and technology to its application as part of a sustained system for observing and forecasting our oceans and seas.
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- In this Subject: Earth and Environmental Sciences , Oceanography
- By this author: Bentamy, A. ; Croize-Fillon, D. ; Queffeulou, P. ; Liu, C. ; Roquet, H.

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