Variations in intensity of Bay of Bengal tropical cyclones with surface latent heat flux and other parameters

Authors

  • PRAVAT RABI NASKAR Regional Meteorological Centre, Kolkata, IMD, Ministry of Earth Sciences – 700 052, Kolkata, India
  • DUSHMANTA RANJAN PATTANAIK Office of the Director-General of Meteorology, IMD, Ministry of Earth Sciences – 110 003, New Delhi, India

DOI:

https://doi.org/10.54302/mausam.v75i1.765

Keywords:

Intense Tropical Cyclones, Latent Heat Flux, Bay of Bengal, Genesis, Intensification, ERA5

Abstract

This study has been undertaken to find out the variation of central pressure (intensity) of intense Tropical Cyclones (TCs) with Sea Surface Temperature (SST), Mid-tropospheric Relative Humidity (MRH), Mid-tropospheric Instability (MI), Vertical Wind Shear (VWS), 200-hPa divergence, and Surface Latent Heat Flux (SLHF) during the lifetime intense TCs. This study also aims to determine the most crucial parameter which shows the highest correlation with central pressure (intensity) of intense TCs during their lifetime. Out of all these parameters, SLHF is highly correlated (R = 0.74) with the central pressure (intensity) of intense TCs. Increase and decrease of SLHF correspond to decrease and increase of TCs central pressure (increase and decrease in TCs intensity). The highest SLHF corresponds to the lowest central pressure (highest intensity).

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Published

01-01-2024

How to Cite

[1]
P. R. NASKAR and D. R. . PATTANAIK, “Variations in intensity of Bay of Bengal tropical cyclones with surface latent heat flux and other parameters”, MAUSAM, vol. 75, no. 1, pp. 131–138, Jan. 2024.

Issue

Vol. 75 No. 1 (2024): MAUSAM

Section

Research Papers

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