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A Scheme for Pixel-Scale Aerodynamic Surface Temperature over Hilly Land


doi: 10.1007/BF02915686

  • 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.
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Manuscript History

Manuscript received: 10 January 2004
Manuscript revised: 10 January 2004
通讯作者: 陈斌, bchen63@163.com
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A Scheme for Pixel-Scale Aerodynamic Surface Temperature over Hilly Land

  • 1. 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.

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