Harmonizing Subtropical Indian Ocean Anticyclone Dynamics with Regional Precipitation Patterns
Authors
KAMRAN KHAN, ABDUL JAMEEL KHAN and KHUDEJA AYUB
Abstract
This study unveiled a significant relationship between the fluctuations in the mean central pressure (MCP) intensity and its east-west movements within the Subtropical Indian Ocean, elucidating the fluctuations in average monthly rainfall across synchronized districts in Tasmania during March-May from 1951 to 2017. The MCP intensity and its longitudinal shifts demonstrated an inverse correlation with the monthly average rainfall across these coherent districts. Notably, the MCP intensity and its longitudinal positions exhibited a stronger correlation compared to other climatic variables in the study, with the exception of March, where intensity lacked direct correlation but its position reflected its impact. Our findings revealed a rising trend in MCP intensity from March to May, primarily concentrated along Tasmania's west coast, resulting in a decline in autumnal (March-May) average rainfall across Tasmania, Australia, throughout the 1951-2017 period.
Keywords: Indian Ocean Subtropical High Pressure, Intensity, Variability, Mean Central Pressure Coherent Rainfall Districts, Climate Variables, Inverse Association, Correlation.
