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Record Search Query: ServiceParameters>MODELS>ATMOSPHERIC GENERAL CIRCULATION MODELS

Whole-Atmosphere Community Climate Model (WACCM)
Entry ID: UCAR_WACCM
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Summary
Abstract: The Whole-Atmosphere Community Climate Model (WACCM) is a comprehensive
numerical model, spanning the range of altitude from the Earth's surface to the
thermosphere. The development of WACCM is an inter-divisional collaboration
that unifies certain aspects of the upper atmospheric modeling of HAO, the
middle atmosphere modeling of ACD, and the tropospheric modeling of CGD, using
the NCAR Community Climate System Model (CCSM) as a common numerical framework.

The initial version of WACCM (WACCM-1b) incorporates physical and chemical
processes required to investigate coupling between atmospheric regions from the
surface to 140 km. Further addition of upper thermospheric physics and
chemistry, much of which is currently operating in HAO's TIME GCM, will
eventually allow the model to extend upward to about 500 km. WACCM is built
upon the numerical framework of CGD's Community Climate System Model (CCSM),
and is envisaged as a flexible model environment, whose domain and component
modules can be configured according to the specific problem under study.

The atmosphere component of CCSM, the Community Atmosphere Model (CAM) has been
extended to the upper boundary at 140 km by:

1. incorporating non-LTE IR transfer above 60 km;

2. including shortwave heating and photolysis from Lyman-alpha to EUV

3. extending the parameterization of gravity wave breaking and diffusion
above the mesopause;

4. including molecular diffusion and diffusive separation effects above 90
km from the TIME-GCM; and

5. incorporating and extending the chemical scheme from ACD's MOZART-3
photochemistry model.

[Summary provided by UCAR.]

Related URL
Link: GET SERVICE
Description: Selected WACCM1b output and source code from the Community Data Portal.
Service Citation
Originators: F. Sassi, B.A. Boville, B. Eaton, R.R. Garcia, and R.G. Roble
Title: Whole-Atmosphere Community Climate Model (WACCM)
Provider: National Center for Atmospheric Research
URL: http://waccm.acd.ucar.edu/
ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
ENVIRONMENT
Service Provider
Atmospheric Chemistry Division, National Center for Atmospheric Research, University Corporation for Atmospheric Research

Service Provider Personnel
Name: NCAR - CLIMATE MODEL SECTION
Phone: (303) 497-1328
Fax: (303) 497-1324
Email: paulad at ucar.edu
Contact Address:
Climate Modeling Section
National Center for Atmospheric Research
P.O. Box 3000
City: Boulder
Province or State: Colorado
Postal Code: 80307-3000
Country: USA
Personnel
TYLER B. STEVENS
Role: SERF AUTHOR
Phone: (301) 614-6898
Fax: 301-614-5268
Email: Tyler.B.Stevens at nasa.gov
Contact Address:
NASA Goddard Space Flight Center
Global Change Master Directory
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA

NCAR - CLIMATE MODEL SECTION
Role: TECHNICAL CONTACT
Phone: (303) 497-1328
Fax: (303) 497-1324
Email: paulad at ucar.edu
Contact Address:
Climate Modeling Section
National Center for Atmospheric Research
P.O. Box 3000
City: Boulder
Province or State: Colorado
Postal Code: 80307-3000
Country: USA
Creation and Review Dates
SERF Creation Date: 2006-11-09
SERF Last Revision Date: 2012-02-15
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