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Showing posts with the label atmospheric science

Role of Ocean Heat Content in the Rapid Intensification of Cyclone Amphan (2020) over the Bay of Bengal

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Role of Ocean Heat Content in the Rapid Intensification of Cyclone Amphan (2020) over the Bay of Bengal Author:Kritajno Bhattacharya Abstract   A major forecasting challenge in the North Indian Ocean is the rapid intensification (RI) of tropical cyclones, especially in the Bay of Bengal, where coastal communities are extremely vulnerable. The main indicator of cyclone intensification has historically been sea surface temperature (SST). Since it captures the total thermal energy available for cyclone growth outside of the surface layer, subsurface ocean heat content (OHC) has lately been acknowledged as a more accurate metric. This study examines how OHC contributed to Super Cyclonic Storm Amphan's (2020) quick intensification over the Bay of Bengal.We'll examine the atmospheric and oceanic factors that contributed to Amphan's abrupt intensification using Tropical Cyclone Heat Potential datasets, in-situ Argo float observations, and best-track records from the India Meteorol...
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The Role of Atmospheric Gravity Waves in Global Climate Dynamics and Extreme Weather Events

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The Role of Atmospheric Gravity Waves in Global Climate Dynamics and Extreme Weather Events Written by: Kritajno Bhattacharya Abstract Atmospheric gravity waves are an essential yet often overlooked component of Earth's weather and climate system. These waves, generated by disturbances such as mountains, thunderstorms, and jet streams, play a critical role in transferring energy and momentum across different layers of the atmosphere. Their influence extends from local weather patterns to global climate regulation. This paper explores how atmospheric gravity waves affect phenomena such as monsoons, sudden stratospheric warmings, the polar vortex, and extreme weather events. The paper also discusses how improving our understanding and modeling of these waves can enhance climate predictions and disaster preparedness  1. Introduction to Gravity Waves Atmospheric gravity waves are oscillations within the Earth's atmosphere that occur when air is displaced from a state of...
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