A scheme for pixel-scale aerodynamic surface temperature over hilly land
A scheme for pixel-scale aerodynamic surface temperature over hilly land
复制标题
丘陵地区像素级气动表面温度方案
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
Xiu
中科院分区：
文献类型：
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作者：
Wen Min;Zhongming Chen;L. Sun;Wenliang Gao;Xiu;T. Yang;Jian Pu;G. Huang;Xiu
利用LAS对山地卫星像元尺度的气动表面温度进行了研究（大孔径闪烁仪）和2001年5月21日至22日期间的气象观测，表明计算的温度主要取决于估计的粗糙度长度，在较小程度上取决于估计的波文比，误差在3.0 K内的AdST计算和丘陵辐射表面温度从卫星数据与分裂窗口模型检索。误差很大程度上取决于所使用的模型以及卫星和太阳相对于观测地点的天顶角和方位角。
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.