The Seasonal Excursion of the Intertropical Convergence Zone

E. B. Kraus Cooperative Institute of Marine and Atmospheric Studies, Miami, Fla. 33149

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Abstract

A simple analytical model relates the seasonal excursion of the Intertropical Convergence Zone to seasonal changes in hemispheric forcing. The maximum value of the excursion increases with the seasonal heating change; it decreases with the equator-pole heating difference and with the heat storage capacity of the system as indicated by the lag of the response after the forcing.

Abstract

A simple analytical model relates the seasonal excursion of the Intertropical Convergence Zone to seasonal changes in hemispheric forcing. The maximum value of the excursion increases with the seasonal heating change; it decreases with the equator-pole heating difference and with the heat storage capacity of the system as indicated by the lag of the response after the forcing.

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