Frequency of Bay of Bengal Cyclones in the Post-Monsoon Season

I. Subbaramayya Department of Meteorology and Oceanography, Andhra University, Waltair: 530 003 India

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S. Rama Mohana Rao Department of Meteorology and Oceanography, Andhra University, Waltair: 530 003 India

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Abstract

Trends and variations in the frequencies of cyclonic disturbances as well as cyclonic storms over the Bay of Bengal in the post-monsoon season are studied using 100 years (1800–1979) of data. Power spectral study of the cyclones has been made and periods at 3.0 and 2.1 years in the cyclonic disturbances and 35−40, 3.0 and 2.1 years in the cyclonic storms have been noted to be significant.

Abstract

Trends and variations in the frequencies of cyclonic disturbances as well as cyclonic storms over the Bay of Bengal in the post-monsoon season are studied using 100 years (1800–1979) of data. Power spectral study of the cyclones has been made and periods at 3.0 and 2.1 years in the cyclonic disturbances and 35−40, 3.0 and 2.1 years in the cyclonic storms have been noted to be significant.

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