气候变化领域集成服务门户(CCPortal): Snow cover distribution, variability, and response to climate change in western China

CCPortal

DOI	10.1175/JCLI3694.1
	Snow cover distribution, variability, and response to climate change in western China
	Qin Dahe; Liu Shiyin; Li Peiji
发表日期	2006
ISSN	0894-8755
EISSN	1520-0442
起始页码	1820
结束页码	1833
卷号	19 期号:9
英文摘要	A study is presented of the geographical distribution and spatial and temporal variabilities of the western China snow cover in the past 47 yr between 1951 and 1997. The data used consist of Scanning Multichannel Microwave Radiometer (SMMR) 6-day snow-depth charts, NOAA weekly snow extent charts, and the daily snow depth and number of snow cover days from 106 selected meteorological stations across western China. Empirical orthogonal function was performed on the SMMR dataset to better understand the spatial pattern and variability of the Qinghai-Xizang (Tibet) snow cover. A multiple linear regression analysis was conducted to show the association of interannual variations between snow cover and snow season temperature as well as precipitation. Further, the autoregressive moving average model was fitted to the snow and climate time series to test for their long-term trends. Results show that western China did not experience a continual decrease in snow cover during the great warming period of the 1980s and 1990s. It is of interest to note that no correlation was identified between temperature and precipitation in the snow cover season. However, year-to-year fluctuation of snow cover responds to both snowfall and snow season temperature. About one-half to two-thirds of the total variance in snow cover is explained by the linear variations of snowfall and snow season temperature. The long-term variability of western China snow cover is characterized by a large interannual variation superimposed on a small increase trend. The positive trend of the western China snow cover is consistent with increasing snowfall, but is in contradiction to regional warming. In addition, many constraints of the Qinghai-Xizang (Tibet) snow cover force the author's challenge of Blanford's hypothesis.
关键词	INTERANNUAL VARIABILITY GLOBAL CLIMATE SUMMER MONSOON INDIAN MONSOON TEMPERATURE PRECIPITATION ACCUMULATION SATELLITE PROSPECTS RAINFALL
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000237628300014
来源期刊	JOURNAL OF CLIMATE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158694
推荐引用方式 GB/T 7714	Qin Dahe,Liu Shiyin,Li Peiji. Snow cover distribution, variability, and response to climate change in western China[J]. 中国科学院青藏高原研究所,2006,19(9).
APA	Qin Dahe,Liu Shiyin,&Li Peiji.(2006).Snow cover distribution, variability, and response to climate change in western China.JOURNAL OF CLIMATE,19(9).
MLA	Qin Dahe,et al."Snow cover distribution, variability, and response to climate change in western China".JOURNAL OF CLIMATE 19.9(2006).