ANALYSIS OF THE PASSIVE MICROWAVE HIGH-FREQUENCY SIGNAL IN THE SHALLOW SNOW RETRIEVAL

被引：2

作者：

Qiu, Yubao ^{[1
]}

Guo, Huadong ^{[1
]}

Shi, Jiancheng ^{[2
]}

Kang, Shichang ^{[3
]}

Lemmetyinen, Juha ^{[4
]}

Wang, James R. ^{[5
]}

机构：

[1] Chinese Acad Sci, Ctr Earth Observat & Digital Earth, Beijing 100190, Peoples R China

[2] Univ Calif Santa Barbara, Inst Computat Earth Syst Sci, Santa Barbara, CA 93106 USA

[3] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China

[4] Finnish Meteorol Inst, Arct Res Ctr, FI-99600 Sodankyla, Finland

[5] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

2011 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2011年

关键词：

Tibet Plateau; Shallow Snow; High Frequency; AMSR-E; COVER;

D O I：

10.1109/IGARSS.2011.6050074

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Over the western China, due to the influence from shallow snow, the passive microwave remote sensing algorithm show its imbecility when using the gradient brightness temperature (Tb) algorithm of 36.5Ghz-18.7Ghz. In this paper, we employee several ground time-series snow depth dataset and the corresponding satellite brightness temperature to evaluate the 36.5Ghz/18.7Ghz and high frequencies' (85Ghz or 89.0Ghz/18.7Ghz) ability for the shallow snow retrieval. From the analysis, we can get that the high frequencies has its potential for the shallow, which is suit for the snow situation over the high land, even with the atmosphere influence at high frequency. The result tell that the relative deep snow (> 20cm) the Tbs at 36-18GHz are more reliable than that of high frequency, while over the shallow snow especially <20cm), the pair 36-18 is insensitive, but the high frequency pair (89/85-18GHz) shows its obvious possibility

引用

页码：3863 / 3866

页数：4

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