Centre for Climate Change Research
High Resolution Climate Change Simulation over South Asia
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High-resolution simulations of 20th century climatic variations and future climate projections have been developed at CCCR-IITM, using a global climate model with telescopic zooming (~ 35 km in longitude x 35 km in latitude) over the South Asian region.

These high-resolution simulations, which were performed on the PRITHVI High Performance Computing (HPC) facility at IITM, offer new opportunities to better understand several key regional scientific issues concerning climate change over South Asia - e.g., Monsoons, precipitation extremes, heat waves, droughts and floods, changes in cyclonic weather systems, hydrological cycle etc.

A variable resolution global modeling framework, based on the Laboratorie Dynamique Meteorologie (LMD, France) atmospheric general circulation model (GCM), has been employed for this purpose under a scientific collaboration between CCCR-IITM and LMD.

Monthly outputs of simulated rainfall and surface air temperature for the historical period (1951 - 2005) and 21st century RCP4.5 scenario projection for the period 2006-2095 are presently made available for downloads.

Monthly Data
Historical (1951-2005)
RCP 4.5 (2006-2095)
Rainfall (mm / day)
Surface Air Temperature (oC)

To Download Global Data Click here : ftp://cccr.tropmet.res.in/iRODS_DATA/Global-Data/