Genesis of Pre–Hurricane Felix (2007). Part I: The Role of the Easterly Wave Critical Layer
Genesis of Pre–Hurricane Felix (2007). Part I: The Role of the Easterly Wave Critical Layer
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DOI:
10.1175/2009jas3420.1
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发表时间:
2010-06
影响因子:
3.1
通讯作者:
Zhuo Wang;M. Montgomery;T. Dunkerton
中科院分区:
文献类型:
--
作者:
Zhuo Wang;M. Montgomery;T. Dunkerton
Abstract The formation of pre–Hurricane Felix (2007) in a tropical easterly wave is examined in a two-part study using the Weather Research and Forecasting (WRF) model with a high-resolution nested grid configuration that permits the representation of cloud system processes. The simulation commences during the wave stage of the precursor African easterly-wave disturbance. Here the simulated and observed developments are compared, while in Part II of the study various large-scale analyses, physical parameterizations, and initialization times are explored to document model sensitivities. In this first part the authors focus on the wave/vortex morphology, its interaction with the adjacent intertropical convergence zone complex, and the vorticity balance in the neighborhood of the developing storm. Analysis of the model simulation points to a bottom-up development process within the wave critical layer and supports the three new hypotheses of tropical cyclone formation proposed recently by Dunkerton, Montgome...