Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Atmospheric Sciences》 2004-01
Add to Favorite Get Latest Update

A Numerical Simulation of Monsoon and the Correlation Between Monsoon and Westerlies

Zuo Ruiting 1), Zeng Qingcun 2), and Zhang Ming 1)1) (Meteorology Institute of Science and Engineering University of P.L.A., Nanjing 211101) 2) (International Center for Climate and Environment Sciences(ICCES), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029)  
By using the 20-year integrating results of IAP 9 L AGCM, the simulating capability of the model is analyzed and the correlation between monsoon and westerlies is detected. The simulated global distribution of generalized monsoon is quite similar to the observational result and so does the cross-parallel transmission of air mass. The cross-parallel transmitting efficacy ratio of air mass driven by the planetary convective circulation to that driven by the surface property diversity are about 1.8∶1 and 2.2∶2 for summer and winter, respectively, which is either quite similar to that of real data. There is entirely difference between westerlies precipitation and that in tropic, the former is caused by the large-scale lifting condensation and is tightly related to storm track, while the latter results from tropical convection and is under the control of tropical stratification. Both of the westerlies and the monsoon are driven by the divergence source and the convergence sink at subtropical region. The winter monsoon enhances the westerlies and its precipitation in the Northern Hemisphere while the summer monsoon has completely the opposite case. The two summer monsoon flows departing from the Southern Hemisphere are superposition in phase at tropical Indian Ocean and south Asia, which leads to the powerful summer monsoon accompanied with the strongest precipitation extending from Asia to Australia. As to winter monsoon, a pair of convergence sinks are formed and locate symmetrically at the warm pool in west Pacific Ocean and the strongest winter precipitation locates exactly at the converge region in front of such two sinks.
【Fund】: 国家重点基础研究发展规划项目G1 9980 40 90 0;; 国家自然科学基金资助项目 40 2 3 3 0 2 7
【CateGory Index】: P425.42
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved