气候变化领域集成服务门户(CCPortal): Precipitation variability in High Mountain Asia from multiple datasets and implication for water balance analysis in large lake basins

CCPortal

DOI	10.1016/j.gloplacha.2016.08.005
	Precipitation variability in High Mountain Asia from multiple datasets and implication for water balance analysis in large lake basins
	Song, Chunqiao; Huang, Bo; Ke, Linghong; Ye, Qinghua
通讯作者	Song, CQ ; Huang, B (通讯作者)
发表日期	2016
ISSN	0921-8181
EISSN	1872-6364
起始页码	20
结束页码	29
卷号	145
英文摘要	For the period 1979-2011, eight gridded monthly precipitation datasets, including GPCP, CMAP-1/2, TRMM, PREC/L, APHRODITE, NCEP-2 and ERA-Interim, are inter-compared with each other and station observations over High Mountain Asia (HMA). The precipitation variability from the first six gauge-based or merged analysis datasets agree better with each other than with the two reanalysis data. The long-term trend analysis of GPCP, CMAP-1, PREC/L and APHRODITE precipitation datasets consistently reveals moderate increases in the inner and northeastern Tibetan Plateau (TP) and northwest Xinjiang, and obvious decreases in the southeast TP. However, in the Himalayas and Karakorum, there are large discrepancies among different datasets, where GPCP and APHRODITE precipitation datasets show significant decreases along the Himalayas while other datasets show strong spatial heterogeneity or slight variations. The larger uncertainties in the rugged area may be largely attributed to scarce station observations, as well as the stronger snow-induced scattering by microwave measurement. To assess which precipitation datasets tend to be more suitable for hydrologic analysis in HMA, we further investigate the accuracy of precipitation estimates at basin scale by comparing with gauge-based observations, and examine the coherences of annual lake water budgets and precipitation variability over four large closed lake catchments. The results indicate that two reanalysis precipitation datasets show evidently weaker correlations with station observations; the other six datasets perform better in indicating inter-annual variations of lake water budgets. It suggests that these merged analysis precipitation datasets, especially for GPCP, CMAP-1/2 and PREC/L, have the potential in examining regional water balances of the inner basins in HMA. (C) 2016 Elsevier B.V. All rights reserved.
关键词	TIBETAN PLATEAU GLOBAL PRECIPITATION GAUGE OBSERVATIONS NCEP-NCAR RAINFALL CLIMATE REANALYSIS EVOLUTION TREND CYCLE
英文关键词	High Mountain Asia; Precipitation; Climate change; Water balance; Lake; Satellite observation
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000385599800004
来源期刊	GLOBAL AND PLANETARY CHANGE
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/258806
推荐引用方式 GB/T 7714	Song, Chunqiao,Huang, Bo,Ke, Linghong,et al. Precipitation variability in High Mountain Asia from multiple datasets and implication for water balance analysis in large lake basins[J]. 中国科学院青藏高原研究所,2016,145.
APA	Song, Chunqiao,Huang, Bo,Ke, Linghong,&Ye, Qinghua.(2016).Precipitation variability in High Mountain Asia from multiple datasets and implication for water balance analysis in large lake basins.GLOBAL AND PLANETARY CHANGE,145.
MLA	Song, Chunqiao,et al."Precipitation variability in High Mountain Asia from multiple datasets and implication for water balance analysis in large lake basins".GLOBAL AND PLANETARY CHANGE 145(2016).