By Staff Reporter
Inputs from Sunitha Devi, Director (Weather Section) India Meteorological Department, Pune.
Monsoon refers to a period of widespread rains from June to September over the Indian subcontinent. The economic discourse in the nation is much dependant on the efficacy of the monsoon.
The term monsoon is customarily used in the South Asian context to refer to a period of widespread rains during June-September, otherwise known as the ‘Indian summer monsoon’. The common reference to a ‘good’ or ‘bad’ monsoon denotes whether the rainfall is in excess or deficient over a large area like India. While the monsoon has a wider economic and socio cultural importance for South Asia, its origins have been subject to much scientific debate.
With the development of sophisticated scientific techniques and advancement in observing techniques like satellite imageries, our understanding of the dynamics of the monsoon has improved significantly in the last few decades. Nevertheless, the origins and mechanics of the monsoon are yet to be fully understood. While empirical seasonal forecasts of the monsoon have been moderately successful for the past hundred years, attempts to model the basic mean structure of monsoon have proved to be elusive. It is, however, generally accepted...