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A scheme for pixel-scale aerodynamic surface temperature over hilly land |
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| Authors: | MIN Wenbin CHEN Zhongming SUN Linsheng GAO Wenliang LUO Xiuling YANG Tingrong PU Jian HUANG Guanglun YANG Xiurong |
| Institution: | The Institute of Plateau Meteorological Sciences,China Meteorological Administration,Chengdu 610072,The Institute of Plateau Meteorological Sciences,China Meteorological Administration,Chengdu 610072,The Institute of Plateau Meteorological Sciences,China Meteorological Administration,Chengdu 610072,The Institute of Plateau Meteorological Sciences,China Meteorological Administration,Chengdu 610072,The Institute of Plateau Meteorological Sciences,China Meteorological Administration,Chengdu 610072,Meteorogical Bureau of Lezhi County,Sichuan,Lezhi 641500,Meteorogical Bureau of Lezhi County,Sichuan,Lezhi 641500,Meteorogical Bureau of Lezhi County,Sichuan,Lezhi 641500,Sichuan Agrometeorological Center,Chengdu 610072 |
| Abstract: | Hilly-land satellite pixel-scale aerodynamic surface temperatures (AdST) are investigated using LAS (Large Aperture Scintillometer) and meteorological observations during 21-22 May 2001,indicating that the calculated temperatures are predominantly subject to estimated roughness lengths and,to a less extent,to estimated Bowen ratios,with errors to within 3.0 K between the AdST calculations and hilly radiometric surface temperatures retrieved from satellite data with the split window model.The errors depend heavily on the model used and the zenith angles and azimuth of the satellite and sun with respect to the observational site. |
| Keywords: | aerodynamic surface temperature large aperture scintillometer radiation temperature sensible heat flux |
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