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Seasonal Nature and Trends of Tropical Cyclone Frequency and Intensity over the North Indian Ocean

Abhisek Pal1 * and Soumendu Chatterjee1

Corresponding author Email: abhisekpal.in@gmail.com

DOI: http://dx.doi.org/10.12944/CWE.15.3.16

Tropical cyclone (TC) genesis over the North Indian Ocean (NIO) region showed significant amount of both spatial and temporal variability.It was observed that the TC genesis was significantly suppressed during the monsoon (June-September) compared to pre-monsoon (March-May) and post-monsoon (October-December) season specifically in terms of severe cyclonic storms (SCS) frequency. The Bay of Bengal (BoB) was characterized by higher TC frequency but lower intensity compared to the Arabian Sea (AS). It was also observed that the TC genesis locations were shifted significantly seasonally.The movement of the TCs also portrayed some significant seasonal differences. The pre-monsoon and post-monsoon season was responsible for generating TCs with higher values of accumulated cyclone energy (ACE) compared to the monsoon. The time series of TC frequency showed a statistically significant decreasing trend whereas the time series of ACE showed astatistically significant increasing trend over the NIO.

Accumulated Cyclone Energy; Arabian Sea; Bay Of Bengal; North Indian Ocean; Seasonality; Trend; Tropical Cyclone.

Copy the following to cite this article:

Pal A, Chatterjee S. Seasonal Nature and Trends of Tropical Cyclone Frequency and Intensity over the North Indian Ocean.Curr World Environ 2020; 15(3).  DOI:http://dx.doi.org/10.12944/CWE.15.3.16

Copy the following to cite this URL:

Pal A, Chatterjee S. Seasonal Nature and Trends of Tropical Cyclone Frequency and Intensity over the North Indian Ocean.Curr World Environ 2020; 15(3). Available from: https://bit.ly/3qfP56R

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