The Kats Circulation Index: An application in research on regional climate variability

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Published: Jan 6, 2012
Keywords:
Circulation index, atmospheric circulation, climatic prediction

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Roberto Aroche Ramírez
Centro Meteorológico de Camagüey
Ismael Pomares
Centro Meteorológico de Camagüey, Carretera a Nuevitas
Nélida Varela
Centro Meteorológico de Camagüey, Carretera a Nuevitas
Nancy Masó
Instituto de Meteorología Loma de Casablanca
Nancy Fernández
Instituto de Meteorología Loma de Casablanca

Abstract

In this paper the Katz Atmospheric Circulation Index (ICA) was applied to determine the main atmospheric circulation characteristics in the Greater Caribbean (GC). Data for twelve tropospheric geopotential height levels for the period 1958-1998 were used. It was obtained by Reanalysis Project of NCEP/NCAR. The ICA was calculated with the CIRC2002 software applied to four GC subregions. The analysis of obtained results allowed us to identify circulatory peculiarities for each subregion according to their geographic characteristics and it potentiality for diagnose and climate prediction, particularly rainfall forecast. It was established subregional Katz index capacity to reveal that the transport variability according to the meridians is greater than according to the parallels, a feature of the atmospheric general circulation. Finally, it was learned that circulatory responses for each subregion there are two main forms, one relative to the opposite behavior of each component of the circulation relative to low or mid-upper tropospheric layers, or between each subregions pair Continental-Island or Atlantic-Gulfian and a second, reflecting most intensification of the component according to the meridians that according to the parallels, and of the East in relation with West in low troposphere of the Gulfian, as in the Atlantic and the Islands subregions.

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How to Cite
Aroche RamírezR., PomaresI., VarelaN., MasóN., & FernándezN. (2012). The Kats Circulation Index: An application in research on regional climate variability. Revista Cubana De Meteorología, 18(1), 100-111. Retrieved from http://rcm.insmet.cu/index.php/rcm/article/view/50
Issue
Vol 18 No 1 (2012): Vol. 18, No. 1, enero - junio, 2012
Section
Original Articles

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