A simple method for estimating downward longwave radiation from surface and satellite data by clear sky
- 1 January 1990
- journal article
- research article
- Published by Taylor & Francis in International Journal of Remote Sensing
- Vol. 11 (1) , 125-131
- https://doi.org/10.1080/01431169008955004
Abstract
An attempt to derive downward longwave radiation at the surface in clear sky conditions is presented. A method that integrates satellite-measured infrared radiation temperatures with ground measurements of water vapour pressure is applied to Meteosat data. Satellite-derived fluxes are compared with corresponding ground-measured fluxes at three different sites in France and during various seasons. Comparison of the daily averaged fluxes shows a correlation coefficient of 0–88 and an r.m.s. difference between satellite estimates and ground measurements of 12 Wm-2.Keywords
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