Guest seminar: Chetankumar Jalihal, IIT Hyderabad, India and MPI Hamburg, Germany

Title: Land vs ocean monsoon: a perspective from paleoclimates.

Abstract

Substantial evidence from proxies suggests that South Asian monsoon variations in the past are due to variations in Earth’s orbit. These variations modulate the amount of solar radiation incident and, thus, the energy available to run the monsoon system. The major focus in the literature has been on the effect of incident solar radiation but not on the resulting feedbacks. Proxies and model simulations indicate that the land and ocean monsoons respond differently to the changes in Earth’s orbit. In this talk, I will underscore the critical impact of feedbacks that lead to this asymmetry in their response. Thus, changes in insolation are only a trigger, and the final response of the monsoon depends on the local feedbacks. 

Welcome!