Title :
A simple two-layer model for computing turbulent fluxes with radiometric surface temperature
Author :
Norman, J.M. ; Kustas, W.P. ; Humes, K.S.
Author_Institution :
Dept. of Soil Sci., Wisconsin Univ., Madison, WI, USA
Abstract :
A simple two-layer model for estimating surface energy fluxes is presented and predictions compared with field measurements. Required model inputs are directional brightness temperature and its angle of view, fractional vegetation cover, vegetation height and approximate leaf size, wind speed, air temperature, and net radiation. Comparisons with several hundred measurements at two sites produced root-mean-square differences between predictions and measurements of 30 to 50 W m-2 for flux components
Keywords :
atmospheric boundary layer; atmospheric techniques; meteorology; remote sensing; IR infrared method; boundary layer; directional brightness temperature; energy transfer; fractional vegetation cover; heat transfer; land surface atmosphere interaction; measurement technique; meteorology; radiometric surface temperature; remote sensing; surface energy flux; surface layer; turbulent flux; two-layer model; wind speed; Aerodynamics; Electrical resistance measurement; Equations; Radiometry; Resistance heating; Soil measurements; Surface resistance; Temperature; Velocity measurement; Wind speed;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399189
