NSSC OpenIR  > 微波遥感部
Alternative TitlePr ilimary Analysis on Polar imetr ic Microwave Radiation in SanjiangyuanRegion
王振占; 殷晓斌; 北京8701信箱
Source Publication科技导报(北京)
Keyword卫星遥感 三江源地区 微波辐射特性 全极化微波辐射计
Other AbstractWith its cloud- penetrating capability, the microwave radiometer can provide all- weather information of ground surface,except for rainy areas. WindSat, the first polarimetric microwave radiometer in the world, can measure all of the four Stokes parameters. The third and fourth Stokes parameters, which have never been measured globally and for a long time, can be used to study Sanjiangyuan region. The types of ground, such as water, vegetation, hungriness and so on, can be easily distinquished according to all of the four Stokes parameters. Small lakes and swamps may be mistaken as bare soil or hungriness by using only vertical and horizontal polarimetric brightness temperature TV and TH. So, the identification with four parameters can eliminate errors with respect to soil moisture. In this respect, the microwave radiometer is superior in studying Sanjiangyuan, where there are various types of ground. The trends of isolines of TV, TV- TH, MPDI (MPDI=(TV- TH)/(TV+TH)) and the third Stokes parameters T3 are generally southwest - northeast for forest of conifer, plain of meadow, droughty plain, hungriness distributed from southeast to northwest. The microwave radiation changes seasonally along with melting and freezing of ice and snow, growing and decaying of vegetation. The differences between TV and T3 of forward looking and back looking show that the microwave radiation of Sanjiangyuan region is anisotropic. The anisotropy of snow and ice and lake is stronger than that of vegetation and hungriness.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
王振占,殷晓斌,北京8701信箱. 三江源地区卫星被动微波遥感特性的初步分析[J]. 科技导报(北京),2007,25(16):22-29.
APA 王振占,殷晓斌,&北京8701信箱.(2007).三江源地区卫星被动微波遥感特性的初步分析.科技导报(北京),25(16),22-29.
MLA 王振占,et al."三江源地区卫星被动微波遥感特性的初步分析".科技导报(北京) 25.16(2007):22-29.
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