About Us
Research efforts of scientists in India and outside, in recent decades, have resulted in a considerable advancement in the understanding of monsoon variability on different spatio-temporal scales and possible role of many global climatic factors responsible for such variability. Intense studies have been made separately for different components of the Asian summer monsoon system (South, Southeast, western North Pacific summer monsoon and East Asian monsoon). We propose to understand the impact of changing global atmospheric conditions on the Asian summer monsoon circulation in general and Indian monsoon circulation and associated rainfall in particular. Predictability of Indian summer monsoon is limited by the ‘climate noise’ or ‘internal’ interannual variability (IAV), generated in the region. In order to improve the prediction skill, it is important to understand the physical processes responsible for the ‘climate noise’. It is proposed to try to unravel the physical processes responsible for ‘internal’ IAV of monsoon
In order to improve the forecast models to achieve the limit on potential predictability of seasonal mean monsoon, it is important to isolate and quantify the contribution from different climate drivers like ENSO, IOD, PDO, AMO, etc. in relation to the ‘internal’ IAV of the monsoon. Using available observations and high resolution coupled-ocean-atmosphere model, we attempt to isolate the contribution of various climate drivers of IAV of the Indian monsoon. The findings of such studies will guide us to develop better model for predicting monsoon climate.
To examine the impact of changing climate , the basic requirement is to understand the climate variability. We examine and try to understand the variability of Indian monsoon on the time scales of intra-seasonal, sub-seasonal, inter-annual to decades.
In view of the large spatial variability of Indian monsoon the efforts are being made to predict the summer monsoon rainfall on smaller spatial scales such as homogeneous regions, sub-divisions etc.