| 中国西部积雪SMMR微波遥感的评价与初步应用 |
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| 引用本文： | 曹梅盛,李培基,D.A.Robinson,T.E.Spies,G.Kukla.中国西部积雪SMMR微波遥感的评价与初步应用[J].遥感学报,1993(4). |
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| 作者姓名： | 曹梅盛 李培基 D.A.Robinson T.E.Spies G.Kukla |
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| 作者单位： | 中国科学院兰州冰川冻土研究所，中国科学院兰州冰川冻土研究所，美国新泽西州Rutgers州立大学地理系，美国新泽西州Rutgers州立大学地理系，美国哥伦比亚大学Lamont-Doherty地质研究所 730000，730000 |
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| 摘 要： | 本文根据1978—1987年OSL的可见光影像及地面台站积雪记录,评价了NASA的用微波亮温反演积雪深度的算式。还根据DEM资料,用GIS技术把中国西部分成高山、高原、低山、丘陵及盆地五个单元,分别求得各区域订正算式,并以此计算了中国西部1978—1987年各季的平均雪盖率与雪量及它们的年际变化,为本区积雪影响东亚气候研究,提供了可靠基础资料。
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| 关 键 词： | 积雪微波遥感 反演算式 雪盖率 雪深 雪量 |
EVALUATION AND PRIMARY APPLICATION OF MICROWAVE REMOTE SENSING SMMR-DERIVED SNOW COVER IN WESTERN CHINA |
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| Cao Meisheng Li Peiji.EVALUATION AND PRIMARY APPLICATION OF MICROWAVE REMOTE SENSING SMMR-DERIVED SNOW COVER IN WESTERN CHINA[J].Journal of Remote Sensing,1993(4). |
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| Authors: | Cao Meisheng Li Peiji |
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| Abstract: | Based on several snow cover data from interpretation of OSL visible waveband images and weather station records in western China for 1978/1987, the equation of snow depth retrieval algorithm in view of the difference of SMMR brightness temperature between 18GHz and 37GHz has been evaluated and adjusted in this paper. According to DEM data the whole western China has been divided into five physiographic regions by means of GIS: high mountains, plateau, low mountains, rolling hills and basin. The regional adjusting equations of the retrieval algorithm for these five units have been gotten separately and they have been used to calculate the mean conditions and interannual dynamic changes of snow cover extent and volume for 1978/1987. The results provide the important basic data for studying the effects of snow cover in western China on East Asia climate. |
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| Keywords: | Microwave remote sensing of snow cover Retrieval algorithm Percentage of snow cover Snow depth Snow volume |
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