globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-012-1595-6
Scopus记录号: 2-s2.0-84891629724
论文题名:
Intraseasonal variability of sea level and circulation in the Gulf of Thailand: The role of the Madden-Julian Oscillation
作者: Oliver E.C.J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 42, 期:2017-01-02
起始页码: 401
结束页码: 416
语种: 英语
英文关键词: Madden-Julian Oscillation ; Predictability ; Shelf circulation ; Wind-driven circulation
英文摘要: Intraseasonal variability of the tropical Indo-Pacific ocean is strongly related to the Madden-Julian Oscillation (MJO). Shallow seas in this region, such as the Gulf of Thailand, act as amplifiers of the direct ocean response to surface wind forcing by efficient setup of sea level. Intraseasonal ocean variability in the Gulf of Thailand region is examined using statistical analysis of local tide gauge observations and surface winds. The tide gauges detect variability on intraseasonal time scales that is related to the MJO through its effect on local wind. The relationship between the MJO and the surface wind is strongly seasonal, being most vigorous during the monsoon, and direction-dependent. The observations are then supplemented with simulations of sea level and circulation from a fully nonlinear barotropic numerical ocean model (Princeton Ocean Model). The numerical model reproduces well the intraseasonal sea level variability in the Gulf of Thailand and its seasonal modulations. The model is then used to map the wind-driven response of sea level and circulation in the entire Gulf of Thailand. Finally, the predictability of the setup and setdown signal is discussed by relating it to the, potentially predictable, MJO index. © 2012 Springer-Verlag Berlin Heidelberg.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54360
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作者单位: Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia

Recommended Citation:
Oliver E.C.J.. Intraseasonal variability of sea level and circulation in the Gulf of Thailand: The role of the Madden-Julian Oscillation[J]. Climate Dynamics,2014-01-01,42(2017-01-02)
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