To understand climatic trend through reconstruction of palaeoclimate
Study of the oceanographic processes for development of site specific proxies for paleoclimatic reconstruction.
Study of marine sediments from northern Indian ocean and adjoining seas for reconstruction of past oceanographic changes with references to monsoonal fluctuations on time frame work a) 0-20000 years (decadal to century resolution) and b) > 20000 years (century resolution).
Climate, the dynamo of biogeosphere is regulated by interaction of land, ocean and atmosphere. The process determines the influx from the land and also regulates the marine ecosystem. The climate of the earth is known to have undergone extreme changes in the past influencing the ecosystem. Little Ice age is the most modern example. The climate prediction is essential to support the agrarian economy of the Asia.
The studies are aimed to understand the processes regulating the local, regional and global climate. Because the available records of the climate are short, and processes influencing the climate are having much larger frequencies, it imperative to go back to the past and extend the knowledge to get trends in the climate variability, and factor which influence these variability.
In the prevalent scenario of high emission of green house gases, which are predicted to alter the global climate, and intensify the sea level rise due to intense deglaciations, it is also imperative to get realistic picture about the trend of sea level changes due to natural and anthropogenic activities. The past records of global changes are needed to specifically separate out the influence of anthropogenic activities on global sea level.