RELATIONSHIPS OF SOUTHERN-OSCILLATION AND OTHER LARGE-SCALE FEATURES WITH BAY OF BENGAL CYCLONES DURING THE POST-MONSOON SEASON

Relationships of three Southern Oscillations and a few other large-scale atmospheric indices, like Stratos-pheric Quasi-Biennial Oscillation, Northern Hemispheric surface air temperature, 50 hPa subtropical ridge po-sition, Indian monsoon rainfall, with the movement and formation of the tropical cyclones over the Bay of Ben-gal during the post-monsoon season are examined. In general, these relationships are not very satisfactory. However, there is some indication that the low phase of the Southern Oscillation is associated with lower mean latitude of the track of cyclones.