Effect of Tibetan Plateau Topography on Northern Hemisphere General Circulation in May and June
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Abstract:
The effects of the Tibetan Plateau topography on Eurasian atmospheric circulation are studied. The experiments with and without TP (CTL and NTP Experiments) are performed respectively by using an atmospheric general circulation model (NCAR CAM 3.1). The results suggest: there are anomaly centers of the Rossby wave train from the Mongolia region, via Okhotsk Sea, Aleutian Islands to the west coast of North America in May; because the middle latitude westerly jet moves northward and weakens, and the Plateau diabetic heating is enhanced from May to June, the wavetrainlike height centers slightly changed their positions and weakened in June. Additionally, the wavelike anomaly centers around the Okhotsk Sea and the area off the east coast of Japan are similar to the positivephase OKJ wave train, which can be considered being suppressed by the east section of the positivephase OKJ wave train, strong in May and weak in June.
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Supported by:Beijing E-Tiller Technology Development Co., Ltd.
Supported by:Beijing E-Tiller Technology Development Co., Ltd.