Clear-sky window channel radiances: A comparison between observations and the ECMWF model

From: Journal of Applied Meteorology | Date: October 1, 2003| Author: | Copyright information

ABSTRACT

A comparison of clear-sky radiances of the Meteosat window channel with the European Centre for Medium-Range Weather Forecasts (ECMWF) model results is presented, aiming to assess both the model's performance and the quality of the observations. The comparison is made for four periods covering the seasonal cycle and for the Meteosat-7 (Africa and southern Europe) and Meteosat-5 (Middle East and the Indian subcontinent) disks. Results show 1) an underestimation of the diurnal cycle of model brightness temperature in clear-sky conditions with a cool bias during daytime of up to 7-8 K ...

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