气候变化领域集成服务门户(CCPortal): Response of hydrological cycle to recent climate changes in the Tibetan Plateau

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DOI	10.1007/s10584-011-0099-4
	Response of hydrological cycle to recent climate changes in the Tibetan Plateau
	Yang, Kun; Ye, Baisheng; Zhou, Degang; Wu, Bingyi; Foken, Thomas; Qin, Jun; Zhou, Zhaoye
通讯作者	Yang, K (通讯作者)
发表日期	2011
ISSN	0165-0009
EISSN	1573-1480
起始页码	517
结束页码	534
卷号	109 期号:3-4
英文摘要	The Tibetan Plateau (TP) surfaces have been experiencing an overall rapid warming and wetting while wind speed and solar radiation have been declining in the last three decades. This study investigated how climate changes influenced the hydrological cycle on the TP during 1984 similar to 2006. To facilitate the analysis, a land surface model was used to simulate surface water budget at all CMA (China Meteorological Administration) stations on the TP. The simulated results were first validated against observed ground temperature and observation-derived heat flux on the western TP and observed discharge trends on the eastern TP. The response of evaporation and runoff to the climate changes was then analyzed. Major finding are as follows. (1) Surface water balance has been changed in recent decades. Observed precipitation shows insignificant increasing trends in central TP and decreasing trends along the TP periphery while evaporation shows overall increasing trends, leading to decreased discharge at major TP water resource areas (semi-humid and humid zones in the eastern and southern TP). (2) At the annual scale, evaporation is water-limited in dry areas and energy-limited (radiation and air temperature) in wet areas; these constraints can be interpreted by the Budyko-curve. Evaporation in autumns and winters was strongly controlled by soil water storage in summers, weakening the dependence of evaporation on precipitation at seasonal scales. (3) There is a complementary effect between the simulated actual evaporation and potential evaporation, but this complementary relationship may deviate from Bouchet's hypothesis when vapor pressure deficit (or air temperature) is too low, which suppresses the power of vapor transfer.
关键词	PAN EVAPORATION POTENTIAL EVAPOTRANSPIRATION COMPLEMENTARY RELATIONSHIP RIVER DISCHARGE SOLAR-RADIATION HEAT-FLUX SURFACE TRENDS CHINA MODEL
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000297350700016
来源期刊	CLIMATIC 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/257942
推荐引用方式 GB/T 7714	Yang, Kun,Ye, Baisheng,Zhou, Degang,et al. Response of hydrological cycle to recent climate changes in the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2011,109(3-4).
APA	Yang, Kun.,Ye, Baisheng.,Zhou, Degang.,Wu, Bingyi.,Foken, Thomas.,...&Zhou, Zhaoye.(2011).Response of hydrological cycle to recent climate changes in the Tibetan Plateau.CLIMATIC CHANGE,109(3-4).
MLA	Yang, Kun,et al."Response of hydrological cycle to recent climate changes in the Tibetan Plateau".CLIMATIC CHANGE 109.3-4(2011).