[ccm-users] Latest public release of the CCM now called CAM2.0...

[Erik Kluzek]

All

	The scientists and researchers of the Community Climate
System Model (CCSM) Atmosphere Model Working Group (AMWG) have
been hard at work for several years with a new version of the
Community Climate Model (CCM) and have named it CAM -- the
Community Atmosphere Model. CAM has several improvements to
model physics from previous versions of the CCM. Changes include
incorporation of a prognostic cloud-water parameterization,
improvements to radiation parameterization for cloud overlap
assumptions and water vapor absorptivity and emissivity. New
packages were put into the model for sea-ice thermodynamics (CSIM),
and a new land-model parameterization (CLM2). The ability to
use fractional land and sea-ice was added as well as datasets
that include both Sea Surface Temperatures (SST) and sea-ice
fractions. Also a parameterization for precipitation evaporation
was added to the model. The new model is dubbed CAM2.0 and is
publicly available from the CAM web-site at...

	http://www.ccsm.ucar.edu/models/atm-cam

A comprehensive listing of the changes since CCM3.6.6 are
available from the "What's new" section in the Users Guide
at...

	http://www.ccsm.ucar.edu/models/atm-cam/UsersGuide/UG-9.html

	The CCM3 web-site has been updated with links to the
CAM web-page.


Erik Kluzek, (CGD at NCAR)
National Center for Atmospheric Research
Boulder CO, (off) (303)497-1326 (fax) (303)497-1324
--------- Home page and public PGP key---------------
          http://www.cgd.ucar.edu/~erik
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