WFRF:(Liu Chong)
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Changing properties of precipitation concentration in the Pearl River basin, China
- Zhang, Qiang (author)
-
- Xu, Chong-yu (author)
- Uppsala universitet,Luft-, vatten- och landskapslära
- Gemmer, Marco (author)
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- Chen, David (author)
- Liu, Chunling (author)
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- (creator_code:org_t)
- 2008-03-12
- 2009
- English.
- In: Stochastic environmental research and risk assessment (Print). - : Springer Science and Business Media LLC. - 1436-3240 .- 1436-3259. ; 23:3, s. 377-385
- Journal article (peer-reviewed)
Abstract
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- In this paper, precipitation concentrations across the Pearl River basin and the associated spatial patterns are analyzed based on daily precipitation data of 42 rain gauging stations during the period 1960-2005. Regions characterized by the different changing properties of precipitation concentration index (CI) are identified. The southwest and northeast parts of the Pearl River basin are characterized by lower and decreasing precipitation CI; the northwest and south parts of the study river basin show higher and increasing precipitation CI. Higher but decreasing precipitations CI are found in the West and East River basin. Comparison of precipitation CI trends before and after 1990 shows that most parts of the Pearl River basin are characterized by increasing precipitation CI after 1990. Decreasing precipitation CI after 1990 (compared to precipitation CI changes before 1990) is observed only in a few stations located in the lower Gui River and the lower Yu River. Significant increasing precipitation CI after 1990 is detected in the West River, lower North River and upper Beipan River. These changes of precipitation CI in the Pearl River basin are likely to be associated with the consequences of the well-evidenced global warming. These findings can contribute to basin-scale water resource management and conservation of ecological environment in the Pearl River basin.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
Keyword
- Atmosphere and hydrosphere sciences
- Atmosfärs- och hydrosfärsvetenskap
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- ref (subject category)
- art (subject category)
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- Zhang, Qiang
- Xu, Chong-yu
- Gemmer, Marco
- Chen, David
- Liu, Chunling
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- NATURAL SCIENCES
- NATURAL SCIENCES
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- Uppsala University
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