IITM-ESM - Earth System Model

Earth System Model Development Version 1

Successful development of the first version of IITM ESM at CCCR, IITM, Pune by transforming a seasonal prediction model (CFSv2) into a long term climate model (Ref: Swapna et al. 2015). This development was achieved by incorporating a new ocean model component (MOM4p1, including ocean biogeochemistry) in CFSv2. Major improvements in the IITM-ESM relative to CFSv2 include:

Significant reduction of cold bias of global mean sea surface temperature (SST) by ~0.8 C
Robust simulations of drivers of natural modes of global climate variability [eg., El Nino/Southern Oscillation (ENSO) and Pacific Decadal Oscillation (PDO)] well-captured in IITM-ESMv1
Teleconnections between ENSO and the Indian monsoon rainfall well captured in IITM-ESMv1