Scale effects and scaling-up by geometric-optical model  

作　　者：李小文 王锦地 A.H.Strahler 

出　　处：《Science China(Technological Sciences)》2000年第S1期17-22,共6页中国科学（技术科学英文版）

摘　　要：This is a follow-up paper to our "Scale effect of Planck’s law over nonisothermal blackbody surface". More examples are used to describe the scale effect in detail, and the scaling-up of Planck law over blackbody surface is further extended to three-dimension nonisothermal surface. This scaling-up results in a conceptual model for the directionality and spectral signature of thermal radiation at the scale of remote sensing pixels. This new model is also an improvement of Li-Strahler-Friedl conceptual model in a sense that the new model needs only statistic parameters at the pixel scale, without request of sub-pixel scale parameters as the LSF model does.This is a follow-up paper to our 'Scale effect of Planck's law over nonisothermal blackbody surface'. More examples are used to describe the scale effect in detail, and the scaling-up of Planck law over blackbody surface is further extended to three-dimension nonisothermal surface. This scaling-up results in a conceptual model for the directionality and spectral signature of thermal radiation at the scale of remote sensing pixels. This new model is also an improvement of Li-Strahler-Friedl conceptual model in a sense that the new model needs only statistic parameters at the pixel scale, without request of sub-pixel scale parameters as the LSF model does.

关 键 词：SCALE effect THERMAL RADIATION geometric-optics. 

分 类 号：TP701[自动化与计算机技术—检测技术与自动化装置]