【摘要】 分裂窗技术已成功应用于海温反演。但当其用于陆地温度反演时 ,通常产生较大误差。选用 7类共 5 1种标准地物 ,分析研究了各种分裂窗算法用于陆面温度反演所产生的误差及误差来源。提出了新的分裂窗算法 ,用分裂窗辐射量线性组合代替亮温线性组合。新的分裂窗反演算法受大气影响很小 ,使陆地温度反演精度优于 3K ,水体反演精度优于 0 .15K。更多还原

【Abstract】 The split window method has been well applied to retrieval of sea surface temperature (SST). However, when this approach is applied to retrieving land surface temperature (LST), large error can be caused. In this paper, 51 species of 7 classes surfaces are collected to evaluate those errors. A new split window algorithm of linear combination of two bands′ radiance is proposed. This new method is less influenced by atmosphere perturbation and can reduce the error of LST less than 3K and that of SST less than 0.15K.更多还原