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Use of SSM/I ice concentration data in the ECMWF SST analysis

Published online by Cambridge University Press:  04 April 2001

P Fernandez ,
G Kelly  and
R Saunders
P Fernandez
Affiliation:
EUMETSAT/ECMWF Fellowship Programme, ECMWF, Shinfield Park, Reading, RG2 9AX, UK I.N.M., Paseo de las Moreras s/n, 28080 Madrid, Spain
G Kelly
Affiliation:
EUMETSAT/ECMWF Fellowship Programme, ECMWF, Shinfield Park, Reading, RG2 9AX, UK
R Saunders
Affiliation:
EUMETSAT/ECMWF Fellowship Programme, ECMWF, Shinfield Park, Reading, RG2 9AX, UK
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Abstract

The use of the SSM/I sea ice concentration data together with a sea surface temperature (SST) analysis in a numerical weather prediction (NWP) model is described. The ice concentration data provide a useful representation of the SST freezing-point isotherm while the SST field allows a quality control of the sea ice data. A land-sea mask, an orography field and a climatological SST field are also used to improve the analysis of surface temperature in some inland seas and lakes. A monthly mean sea ice concentration climatology has been created from 13 years of the ECMWF re-analysis ice concentration dataset which was also derived from satellite multi-channel microwave radiometer data. Data assimilation experiments have shown a small positive impact in the southern hemisphere model forecast scores when this new surface field is used in the NWP model.

Type
Research Article
Information
Meteorological Applications , Volume 5 , Issue 4 , December 1998 , pp. 287 - 296
Copyright
© 1998 Meteorological Society

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