Anomalies in the aerological data of Mangalore and Ahmedabad

Abstract

In the course of a study of the aerological data of Indian stations for the years 1978 1979 and 1980 anomalies of a serious nature were noticed in the rawin data of Mangalore and the radiosonde data of Ahmedabad. Attention is drawn to the nature of these anomalies which have remained unnoticed for several years. The anomaly in the rawin data of Mangalore came to notice from the incompatibility of the meridional wind profiles of this station with those of other Peninsular stations. This was traced to the incorrect orientation of the radio wind-finding equipment at the station which has since been rectified. The monthly mean temperatures at Ahmedabad for the summer monsoon months were found to be higher than those of Bombay and Jodhpur at almost all tropospheric levels. As a consequence, pressure-wind relationships in the Bombay-Ahmedabad-Jodhpur sector contradict Buys Ballots’ law. This anomaly persists and the origin of the spurious tropospheric heat island over Ahmedabad remains to be traced.