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学科主题: 地理学::自然地理学
题名: Precipitation variability in High Mountain Asia from multiple datasets and implication for water balance analysis in large lake basins
作者: Song, CQ (Song, Chunqiao)1, 2; Huang, B (Huang, Bo)2, 3; Ke, LH (Ke, Linghong)4; Ye, QH (Ye, Qinghua)5
通讯作者: Song, CQ ; Huang, B
关键词: TIBETAN PLATEAU ; GAUGE OBSERVATIONS ; GLOBAL PRECIPITATION ; SUMMER MONSOON ; RECENT DECADES ; NCEP-NCAR ; RAINFALL ; CLIMATE ; REANALYSIS ; EVOLUTION
刊名: GLOBAL AND PLANETARY CHANGE
发表日期: 2016
DOI: 10.1016/j.gloplacha.2016.08.005
卷: 145, 期:0, 页:20-29
收录类别: SCI
合作性质: 国际
文章类型: Article
部门归属: 环境
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.
语种: 英语
WOS记录号: WOS:000385599800004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/7581
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Univ Calif Los Angeles, Dept Geog, Portola Plaza, Los Angeles, CA 90095 USA
2.Chinese Univ Hong Kong, Dept Geog & Resource Management, Hong Kong 999077, Hong Kong, Peoples R China
3.Chinese Univ Hong Kong, Shenzhen Res Inst, Shenzhen 518172, Peoples R China
4.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong 999077, Hong Kong, Peoples R China
5.Chinese Acad Sci, Inst Tibetan Plateau Res ITP, Bldg 3,Yard 16 Lincui Rd, Beijing 100101, Peoples R China

Recommended Citation:
Song, CQ ,Huang, B ,Ke, LH ,et al. Precipitation variability in High Mountain Asia from multiple datasets and implication for water balance analysis in large lake basins[J]. GLOBAL AND PLANETARY CHANGE,2016,145(0):20-29.
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