Summary
The south Asian summer monsoon from June to September accounts for the greater part of the annual rainfall over most of India and southeast Asia. The evolution of the summer and winter monsoon circulations over India is examined on the basis of the surface and upper air data of stations across India. The salient features of the seasonal reversals of temperature and pressure gradients and winds and the seasonal and synoptic fluctuations of atmospheric humidity are discussed. The space-time variations of rainfall are considered with the help of climatic pentad rainfall charts and diagrams. The rainfall of several north and central Indian stations shows a minimum around mid-August and a maximum around mid-February which seem to be connected with the extreme summer and winter positions of the ITCZ and the associated north—south shifts in the seasonal circulation patterns. Attention is drawn to the characteristic features of the monsoon rainfall that emerge from a study of daily and hourly rainfall of selected stations. Diurnal variations of temperature, pressure, wind and rainfall over the monsoon belt are briefly treated.
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Ananthakrishnan, R. (1978). Some Aspects of the Monsoon Circulation and Monsoon Rainfall. In: Monsoon Dynamics. Contributions to Current Research in Geophysics (CCRG). Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-5759-8_7
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DOI: https://doi.org/10.1007/978-3-0348-5759-8_7
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