【摘要】 利用多频段微波辐射计（９．３７５、３６ＧＨｚ）对长春地区干雪的热辐射进行了遥感测量。雪模拟为一层介电强起伏的随机介质，利用强起伏理论和起伏逸散定理计算干雪辐射亮度温度的零阶近似解。辐射亮度温度数值结果与实验数据进行了比较，二者取得较好的一致性。更多还原

【Abstract】 Microwave thermal emission measurements of dry snow have been done at 9. 375 GHzand 36 GHz in Chang Chun region.Consider snow for one-layer random of which thepermittivity is strong flucttiated.The relationships of dry snow brightness temperaturewith snow depth and viewing angle in the zeroth order approximation are calculated usingstrong fluctuation and fluctuation dissipation theorem.Theoretical results are favorablymatched with the experimental data.The results show that the radiometer at 9. 375 GHz issensitive to snow,and the radiometer at 36 GHz is more favorable to measure dry snowdepth.更多还原