Summary
Monsoon is a complex dynamical system. Interannual and intraseasonal fluctuations have been studied in the regional and global perspective. Southern Hemispheric Equatorial Trough and its activity during the northern summer appears inversely related to the rainfall activity over the Indian sub-continent in general and Central India in particular. During typical active SHET epochs the rainfall activity becomes deficient in the Central parts of the country. The activity of the SHET is fluctuating in nature. Its duration is prolonged and intensity is increased during the years of major failure.
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De, U.S., Prasad, O. & Vaidya, D.V. The influence of Southern Hemispheric Equatorial Trough on rainfall during southwest monsoon. Theor Appl Climatol 52, 177–181 (1995). https://doi.org/10.1007/BF00864041
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DOI: https://doi.org/10.1007/BF00864041