考虑土壤水分影响的比辐射率方法在地表温度反演中的应用
董雪, 田静, 吴骅, 刘素华

Application of the emissivity method considering the effects of soil moisture for retrieving land surface temperature
Xue DONG, Jing TIAN, Hua WU, Suhua LIU
表1 CE-312不同通道、不同质地的土壤比辐射率与土壤含水量关系模型各系数值
Table 1 The regression coefficients of emissivity ε against water content θv for each soil and each spectral band of the radiometer CE-312
εi=ai+biθv+ciln(θv)
CE-312通道 Channel 1(8~13.3μm) Channel 2(11.5~12.4μm) Channel 3(10.2~11.3μm)
对应传感器波段 TM/ETM+ 6 MODIS 32 MODIS 31
a b c a b c a b c
壤土 0.963 - 0.009 0.965 0.040 0.004 0.958 0.052 0.004
砂壤 0.987 - 0.016 0.980 0.020 0.010 0.970 0.030 0.009
粉壤 0.968 - 0.012 1.010 -0.050 0.019 1.004 -0.04 0.018
粘壤 0.970 - 0.012 1.023 -0.068 0.025 0.996 -0.034 0.016