Indicative Significance of Thermal Effects over the Qinghai-Xizang Plateau to the Onset of Plateau Summer Monsoon

BAI Binren; HU Zeyong

doi:10.7522/j.issn.1000-0534.2015.00016

Plateau Meteorology >

2016 , Vol. 35 >Issue 2: 329 - 336

DOI: https://doi.org/10.7522/j.issn.1000-0534.2015.00016

Indicative Significance of Thermal Effects over the Qinghai-Xizang Plateau to the Onset of Plateau Summer Monsoon

BAI Binren ,
HU Zeyong

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Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;2. University of Chinese Academy of Sciencs, Beijing 100049, China;3. College of Atmospheric Sciences, Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu University of Information Technology, Chengdu 610225, China;4. Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Science, Beijing 100101, China

Received date: 2014-08-25

Online published: 2016-04-28

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Abstract

In order to discuss whether there exist some indicative significance of thermal effects over Qinghai-Xizang Plateau to the onset of plateau summer monsoon, the relationship between plateu thermal effects and plateau summer monsoon were studied by utilizing monthly mean ECMWF reanalysis data, monthly index of intensity departure of surface heating fields over the Qinghai-Xizang Plateau (B-H) and daily precipitation data from China meteorological data sharing service system during 1979-2011. The correlation analysis and composite analysis are the main statistical methods to process the data. The results show that B-H is well correlated with Traditional Plateau Monsoon Index (TPMI) and Dynamic Plateau Monsoon Index (DPMI). But there is a time lag of 1~3 months between B-H and DPMI, especially in the dry season. When the thermal effects over Plateau are stronger in February, the earlier onset of the plateau summer monsoon and the stronger intensity in the beginning of the onset period can be caused.

Key words： The Qinghai-Xizang P; Thermal effect; Plateau summer monso

Cite this article

BAI Binren , HU Zeyong . Indicative Significance of Thermal Effects over the Qinghai-Xizang Plateau to the Onset of Plateau Summer Monsoon[J]. Plateau Meteorology, 2016 , 35(2) : 329 -336 . DOI: 10.7522/j.issn.1000-0534.2015.00016

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