Role of southern hemispheric equatorial trough in medium range forecasting


  • ONKARI PRASAD Meteorological Office, Pune
  • AARAMA SASTRY Meteorological Office, Pune
  • AK HANSDA Meteorological Office, Pune
  • US DE Meteorological Office, Pune



The present investigation examines the variations in the cloudiness over the southern hemipheric equatorial trough during the Indian summer monsoon vis-à-vis importance in foreshadowing the monsoon activity over the Indian sub-continent.

The near forty-day mode and its potentialities and limitations as a predictor for medium range forecasting are also examined. It has been shown that a continuous monitoring of the SHET cloudiness during the summer monsoon season could be a useful guide for medium range forecasting of rainfall over certain parts of the Indian sub-continent.





How to Cite

O. . PRASAD, A. . SASTRY, A. HANSDA, and U. DE, “Role of southern hemispheric equatorial trough in medium range forecasting”, MAUSAM, vol. 39, no. 2, pp. 201–206, Apr. 1988.



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