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Development and testing of a method of estimating sensible heat flux from natural surfaces using remotely sensed surface temperatures
Author(s) -
Leckie D. G.,
Black T. A.,
Murtha P. A.
Publication year - 1981
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450590209
Subject(s) - sensible heat , environmental science , surface roughness , heat flux , wind speed , thermal inertia , flux (metallurgy) , planetary boundary layer , surface (topology) , energy balance , stability (learning theory) , bowen ratio , remote sensing , latent heat , meteorology , thermal , boundary layer , heat transfer , atmospheric sciences , materials science , mechanics , geology , computer science , thermodynamics , mathematics , geometry , geography , physics , machine learning , metallurgy , composite material
Remote sensing techniques for the determination of the sensible heat flux component of the energy balance of natural surfaces have applications to several fields of study. Research into the use of a night‐time cooling model for remote sensing thermal inertia mapping which has applications to soil moisture measurement and geologic interpretation prompted the following study. The theoretical framework is presented for a method of determining sensible heat flux in a stable boundary layer from input parameters of radiometrically determined surface temperature, surface roughness, and the air temperature and wind speed at one height above the surface. Corrections for stability and the surface sublayer are included. The method is tested over a vegetated and a non‐vegetated surface using ground based data. Given accurate input parameters, the method gives excellent results for the non‐vegetated surface, but unreliable results for the vegetated surface.