Relationship between the atmospheric heat source over Tibetan Plateau and the heat source and general circulation over East Asia

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2008,（21）
• 页码范围: 3387-3394
• 页数: 8页
• 语种: 英文
• DOI: 10.1007/s 11434-008-0327-0

摘要

On the basis of NCEP/NCAR version I daily reanalysis data from 1971 to 2000 and by the methods of inverse calculation, correlation analysis and comparative analysis, the influences of atmospheric heat source (AHS) over the Tibetan Plateau on the large-scale AHS and the general circulation in summer are studied in this paper. The results show that AHS over the plateau in summer may trigger a heat source wavetrain propagating northeastward along the coast from the East Asian continent and West Pacific to Bering Strait-Arctic or even North America. In addition, if AHS over the eastern plateau is intense, South Asian High moves to southeast and West Pacific subtropical high moves to southwest; on the contrary, if AHS over the eastern plateau is weak, South Asian High moves to northwest and West Pacific subtropical high moves to northeast. Therefore, South Asian High and West Pacific sub-tropical high move in the horizontally-opposita directions in terms of interannual variation, for which AHS over the eastern plateau seems to be thermodynamically responsible.