Abstract:
The Community Climate System Model (CCSM) is a fully-coupled, global climate
model that provides state-of-the-art computer simulations of the Earth's past,
present, and future climate states. CCSM3.0 consists of model output from the
Community Atmosphere Model (CAM), the Community Sea Ice Model (CSIM), and the
Community Land Model (CLM).
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CCSM3.0, various multi-century control runs were carried out. All output data
from these control runs is available to the public.
Another series of CCSM3 experiments is underway which will provide data for an
upcoming IPCC Assessment Report. Data from these experiments will be made
available after CCSM3 results are submitted to the IPCC.
CCSM3.0 experiments include the following scenarios at T85_gx1x3, T42_gx1x3,
and T31_gx3x5 resolution:
- 1990 Control
- 1% increasing CO2
- 2 x CO2
- 4 x CO2
- 1870 control
CCSM3.0 output data files consist of:
- CAM: monthly-mean time series of all 2D fields and monthly-mean,
zonally averaged time series of all 3D fields
- LSM: 100 years of original history files
- CSIM: monthly-mean time series of select fields
- POP: monthly-mean time series of all 2D fields and annual-mean time
series of all 3D fields
For all control runs, monthly average data were saved and many post-processed
time-series were created. All output data from these runs is available to the
public. A large (2TB) subset of this data is available via the ESG, which is
the primary method for distributing CCSM3 output data. The full set of original
output data is archived on NCAR's Mass Storage System (NCAR account/login
required). A sub-set (1TB) of post-processed output data is also available
"inside the firewall" at NCAR on the nfs-mounted data partition /ccsm/data
(NCAR account/login required).
CCSM is sponsored by the National Science Foundation (NSF) and the U.S.
Department of Energy (DOE). Administration of the CCSM is maintained by the
Climate and Global Dynamics Division (CGD) at the National Center for
Atmospheric Research (NCAR). 
