Interdecadal variability of the tropospheric biennial oscillation in the western North Pacific
Zheng Bin(郑彬)†, Lin Ai-Lan(林爱兰), Gu De-Jun(谷德军), and Li Chun-Hui(李春晖)
Key open Laboratory for Tropical Monsoon, Guangzhou Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou 510080, China
Abstract The observed tropospheric biennial oscillation (TBO) in the western North Pacific (WNP) monsoon region has an interdecadal variability with a period of 40--50 yr. That suggests a weaker effect of the TBO on the East Asia followed by a stronger one. A simple analytic model was designed to investigate the mechanism of the interdecadal variability of the TBO. The results indicated that a local TBO air--sea system not only supports the TBO variability in the WNP monsoon region but also produces an interdecadal variability of the TBO.
Received: 30 October 2007
Revised: 13 November 2007
Accepted manuscript online:
Fund: Project supported by
the National Natural Science Foundation of China (Grant No
40505019).
Cite this article:
Zheng Bin(郑彬), Lin Ai-Lan(林爱兰), Gu De-Jun(谷德军), and Li Chun-Hui(李春晖) Interdecadal variability of the tropospheric biennial oscillation in the western North Pacific 2008 Chin. Phys. B 17 1935
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