Memoirs of the Asiatic Society of Bengal. Geographic and Oceanographic Research in Indian Waters - Maritime Meteorology in Indian Seas

Although in the present series of papers I have confined my attention in the main to conditions existing in the Bay of Bengal and Andaman Sea I have in the present paper for the purpose of comparison included the results obtained in the Laccadive Sea to the west of the Indian Peninsula. [...] Fortunately the data published by Dallas (1886) for the area metioned above to the south of the Bay of Bengal and by the same author (1894) for the whole of the Arabian Sea as well as that contained in the Annual Reports of the Marine Biologist to the Government of Ceylon dealing with his investgations in the Gulf of Manaar enable one to fill in the hiatus that would othewise remain [...] I have already called attention to the fact that during the winter months from October to February over the open waters on the western side of the Andaman Sea and in the area to the south and east of the Bay of Bengal that was investigated by Dallas the average air-temperature is found to vary in a somewhat peculiar manner which I attribute to the effect of the N. E. Monsoon. [...] The main features of the weather of the period October to December (1922) were an early retreat of the monsoon from north-east India and its vigorous activity in the south and centre of the Bay " while in January 1923 " a revival of the monsoon ticcurred in the south of the Bay and gave rise to a shallow depresion to the east of Ceylon on the 9th. [...] In the case of a slow rise of temperature and a rapid fall during the course of a year the apex of the computed curve will be earlier than the actual maximum and in the present case computation has altered the oscillatory curve slightly by putting the first maximum in March whereas most of the series of observations and the average show the maximum to occur in April.