The ITCZ and the Seasonal Cycle over Equatorial Africa
The ITCZ and the Seasonal Cycle over Equatorial Africa
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ITCZ 和赤道非洲的季节周期
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
S. Nicholson
中科院分区：
文献类型：
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作者：
S. Nicholson
非洲雨季的进展的共同解释是ITCZ的季节性漂移。ITCZ模式起源于热带降雨被认为主要与局部对流有关的时期。它的发展也与中纬度锋面概念的出现有关。该模式有许多缺点，包括定义的多样性和用于确定ITCZ的大量参数。从历史上看，这一概念在非洲的使用长期以来一直存在争议，许多著名的热带气象学家严厉批评它在非洲大陆的适用性。然而，ITCZ的季节性漂移仍然是非洲雨季的经典解释，特别是在赤道地区。本文强调的不足之处，在赤道非洲的范例，通过研究与降雨的空间和时间模式在赤道多雨的环流的各个方面…
AbstractThe common explanation for the progression of the rainy season over Africa is the seasonal excursion of the ITCZ. The ITCZ paradigm stems from a time when tropical rainfall was assumed to be associated mainly with localized convection. Its development was also linked to the emergence of midlatitude frontal concepts. The paradigm has numerous shortcomings, including the diversity of definitions and the large number of parameters used to identify the ITCZ. A historical look at the concept shows that its use over Africa has long been controversial, with many eminent tropical meteorologists harshly criticizing its applicability over this continent. However, the seasonal excursion of the ITCZ remains the classical explanation for African rainy seasons, especially in the equatorial region. This article underscores the shortcomings of the paradigm in equatorial Africa by examining various aspects of the circulation associated with the spatial and temporal patterns of rainfall during the equatorial rainy ...