The role of boundary layer momentum advection in the mean location of the ITCZ
作者: Vishal DixitJ Srinivasan
作者单位: 1Indian Institute of Science
2University of New South Wales
刊名: Journal of Earth System Science, 2017, Vol.126 (6)
来源数据库: Springer Nature Journal
DOI: 10.1007/s12040-017-0856-5
关键词: ITCZMomentum budgetOff-equatorial convergence
英文摘要: The inter-tropical convergence zones (ITCZ) form closer to the equator during equinoxes while they form well away from the equator during the boreal summer. A simple three-way balance between the pressure gradients, Coriolis force and effective Rayleigh friction has been classically used to diagnose the location of maximum boundary layer convergence in the near equatorial ITCZ. If such a balance can capture the dynamics of off-equatorial convergence was not known. We used idealized aqua planet simulations with fixed, zonally symmetric sea surface temperature boundary conditions to simulate the near equatorial and off-equatorial ITCZ. As opposed to the convergence of inter-hemispheric flows in the near equatorial convergence, the off-equatorial convergence forms due to the deceleration of...
原始语种摘要: The inter-tropical convergence zones (ITCZ) form closer to the equator during equinoxes while they form well away from the equator during the boreal summer. A simple three-way balance between the pressure gradients, Coriolis force and effective Rayleigh friction has been classically used to diagnose the location of maximum boundary layer convergence in the near equatorial ITCZ. If such a balance can capture the dynamics of off-equatorial convergence was not known. We used idealized aqua planet simulations with fixed, zonally symmetric sea surface temperature boundary conditions to simulate the near equatorial and off-equatorial ITCZ. As opposed to the convergence of inter-hemispheric flows in the near equatorial convergence, the off-equatorial convergence forms due to the deceleration of...
全文获取路径: Springer Nature  (合作)
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影响因子:0.695 (2012)

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关键词翻译
关键词翻译
  • equatorial 赤道仪
  • convergence 汇合
  • meridional 子午线的
  • advection 平流
  • momentum 动量
  • balance 平衡
  • location 定位
  • inertial 惯性的
  • zonal 带状的
  • deceleration 减速