CCR's Climate Change Prediction Research
NCAR's Contribution to the Earth System Grid
NCAR's most-advanced global coupled climate model, CCSM, provided the largest contribution from any single climate model to the IPCC Fourth Assessment Report. Approximately 120 TB of original CCSM data was processed to create about 12 TB of IPCC-compliant data, a process that took 15 months. Additionally, CCSM data is available to the wider community and the general public via the Earth System Grid (ESG) project. Over 200 TB of CCSM data can be downloaded from the ESG website at NCAR, and over 1,000 individuals have registered with ESG to access CCSM data. The CCSM source code itself, also on the ESG system, has been accessed more than 700 times. In terms of volume, in July 2008, more than 6 TB (an average of over 200 MB per day) of CCSM output data was retrieved from the NCAR ESG portal. We anticipate for the fifth IPCC assessment that we will provide to the climate change research community many times the data we provided to the fourth assessment.