气候变化领域集成服务门户(CCPortal): Snow depth derived from passive microwave remote-sensing data in China

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DOI	10.3189/172756408787814690
	Snow depth derived from passive microwave remote-sensing data in China
	Che, Tao; Li, Xin; Jin, Rui; Armstrong, Richard; Zhang, Tingjun
发表日期	2008
ISSN	0260-3055
起始页码	145
结束页码	+
卷号	49
英文摘要	In this study, we report on the spatial and temporal distribution of seasonal snow depth derived from passive microwave satellite remote-sensing data (e.g. SMMR from 1978 to 1987 and SMM/I from 1987 to 2006) in China. We first modified the Chang algorithm and then validated it using meteorological observation data, considering the influences from vegetation, wet snow, precipitation, cold desert and frozen ground. Furthermore, the modified algorithm is dynamically adjusted based on the seasonal variation of grain size and snow density. Snow-depth distribution is indirectly validated by MODIS snow-cover products by comparing the snow-extent area from this work. The final snow-depth datasets from 1978 to 2006 show that the interannual snow-depth variation is very significant. The spatial and temporal distribution of snow depth is illustrated and discussed, including the steady snow-cover regions in China and snow-mass trend in these regions. Though the areal extent of seasonal snow cover in the Northern Hemisphere indicates a weak decrease over a long period, there is no clear trend in change of snow-cover area extent in China. However, snow mass over the Qinghai-Tibetan Plateau and northwestern China has increased, while it has weakly decreased in northeastern China. Overall, snow depth in China during the past three decades shows significant interannual variation, with a weak increasing trend.
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS关键词	COVER ; ALGORITHM ; CLASSIFICATION ; UNCERTAINTY ; EMISSION ; IMAGER
WOS记录号	WOS:000264862900024
来源期刊	ANNALS OF GLACIOLOGY, VOL 49, 2008
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/241010
作者单位	[Che, Tao; Li, Xin; Jin, Rui] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, 320 Donggang W Rd, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Che, Tao,Li, Xin,Jin, Rui,et al. Snow depth derived from passive microwave remote-sensing data in China[J]. 中国科学院西北生态环境资源研究院,2008,49.
APA	Che, Tao,Li, Xin,Jin, Rui,Armstrong, Richard,&Zhang, Tingjun.(2008).Snow depth derived from passive microwave remote-sensing data in China.ANNALS OF GLACIOLOGY, VOL 49, 2008,49.
MLA	Che, Tao,et al."Snow depth derived from passive microwave remote-sensing data in China".ANNALS OF GLACIOLOGY, VOL 49, 2008 49(2008).