A simple method for estimating downward longwave radiation from surface and satellite data by clear sky

6533b828fe1ef96bd1288510

RESEARCH PRODUCT

A simple method for estimating downward longwave radiation from surface and satellite data by clear sky

subject

[SPI.OTHER]Engineering Sciences [physics]/Other 010504 meteorology & atmospheric sciences Correlation coefficient [SPI.OTHER] Engineering Sciences [physics]/Other media_common.quotation_subject Vapour pressure of water 0207 environmental engineering METEOROLOGIE 02 engineering and technology 01 natural sciences Flux (metallurgy)13. Climate action Sky Brightness temperature General Earth and Planetary Sciences Environmental science Radiometry Satellite 020701 environmental engineering Physics::Atmospheric and Oceanic Physics Water vapor ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences Remote sensing media_common

description

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.

year	journal	country	edition	language
1990-01-01

https://hal.inrae.fr/hal-02700285

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