Discussion of upper air data of 2 and 4 July 1963 from the point of presence of airmasses and structure of the cyclonic vortex off the Bombay coast

Abstract

Upper air data over the Arabian Sea for 2 and 4 July 1963 when there was a cyclonic vortex off the Konkan coast, have been discussed with reference to the synoptic charts. It is seen that the data show definite evidence of airmasses and 'reversal level' over the sea as has been observed in the past over the subcontinent. Miller and Keshayamurthy s (1967) kinematic analysis charts for 500-mb level for 2 and 4 July and their conclusions from the same would appear untenable. Their not recognising the 'reversal level' has led them to consider that the vortex and thermal structure are similar to the 'subtropical cyclone'.