气候变化领域集成服务门户(CCPortal): Spatiotemporal variation of snow cover over the Tibetan Plateau based on MODIS snow product, 2001-2014

CCPortal

DOI	10.1002/joc.5204
	Spatiotemporal variation of snow cover over the Tibetan Plateau based on MODIS snow product, 2001-2014
	Li, Chunhong; Su, Fengge; Yang, Daqing; Tong, Kai; Meng, Fanchong; Kan, Baoyun
通讯作者	Su, FG (通讯作者)
发表日期	2018
ISSN	0899-8418
EISSN	1097-0088
起始页码	708
结束页码	728
卷号	38 期号:2
英文摘要	In this paper, we investigate the spatiotemporal characteristics and trends of snow cover fraction (SCF) in the Tibetan Plateau (TP) and seven upstream river basins (Yellow, Yangtze, Mekong, Salween, Brahmaputra, Indus and Yarkant) by employing the Moderate Resolution Imaging Spectroradiometer (MODIS) data for 2001-2014. The possible linkage between the SCF, and temperature and precipitation changes over the TP and individual basins is also investigated. Results suggest that the distribution of snow cover over the TP exhibit a large spatiotemporal heterogeneity with high SCFs mainly concentrating on the southern and western edges which is strongly linked to the moist air supplies. The distribution of snow cover is highly dependent on the elevations, with a higher SCF and a later onset of snow melt at the higher elevation zones than at the lowers. There is an elevation threshold existing for separating two distinct snow cover regimes, which are 4000m for the western basins and 5000m for the southeastern basins. The snow cover over the TP has slightly decreased by about 1.1% during 2001-2014, with dramatic reductions mostly lying in the heavy snowy regions and some light increases occurring in the areas with annual mean SCFs mostly less than 10%. The reduction rates of snow cover increase with the rising of altitudes for the TP average, and the basins of Indus, Yarkant, Salween and Brahmaputra. At the same time, the Yellow and Yangtze basins exhibit larger increasing rates of snow cover at the higher elevations zones. The SCF variations are linked to the temperature and precipitation changes. Precipitation tends to be the major factor impacting the snow cover changes in the TP during 2001-2014.
关键词	ASIAN SUMMER MONSOON UPPER INDUS BASIN CLIMATE-CHANGE RIVER-BASINS ACCURACY ASSESSMENT ELEVATION GLACIER VARIABILITY TRENDS RUNOFF
英文关键词	trend analysis; regional difference; precipitation control; Yellow and Yangtze basins; Pamir-Karakoram anomaly
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000423816900014
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
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/259252
推荐引用方式 GB/T 7714	Li, Chunhong,Su, Fengge,Yang, Daqing,et al. Spatiotemporal variation of snow cover over the Tibetan Plateau based on MODIS snow product, 2001-2014[J]. 中国科学院青藏高原研究所,2018,38(2).
APA	Li, Chunhong,Su, Fengge,Yang, Daqing,Tong, Kai,Meng, Fanchong,&Kan, Baoyun.(2018).Spatiotemporal variation of snow cover over the Tibetan Plateau based on MODIS snow product, 2001-2014.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(2).
MLA	Li, Chunhong,et al."Spatiotemporal variation of snow cover over the Tibetan Plateau based on MODIS snow product, 2001-2014".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.2(2018).