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QUIKSCAT NWP ocean calibration for wind product improvement

AutorVerspeek, Jeroen; Stoffelen, Ad; Verhoef, Anton; Portabella, Marcos
Fecha de publicaciónsep-2014
CitaciónEUMETSAT Meteorological Satellite Conference (2014)
ResumenAn ocean calibration method for scatterometer wind data is developed at KNMI. The method is based on a direct comparison of measured backscatter data with simulated backscatter data from Numerical Weather Prediction (NWP) winds. This NWP Ocean Calibration tool (NOC) is used to improve the scatterometer wind products and can be used to eliminate systematic interbeam biases and across-swath dependencies (when present) in the wind product. Monte Carlo simulations are useful to assess the accuracy of the NOC method and to determine the sensitivity with respect to binning and sampling errors. As such, simulation runs with realistic “true” wind distribution and realistic measurement and NWP wind-component error values are performed. A reprocessing of QuikSCAT data over its whole lifespan (1999-2009) is being performed by KNMI. The averaged NOC residuals over a longer period are used to calculate correction factors and used to improve the wind retrieval
DescripciónEUMETSAT Meteorological Satellite Conference 2014, 22-26 September 2014,Geneva, Switzerland.-- 8 pages, 6 figures
Versión del editorhttp://www.eumetsat.int/website/home/News/ConferencesandEvents/DAT_2076129.html
URIhttp://hdl.handle.net/10261/117209
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