[Science_Parameters: Science_Category='EARTH SCIENCE', Science_Topic='ATMOSPHERE', Science_Term='ATMOSPHERIC CHEMISTRY', Science_Variable_Level_1='OXYGEN COMPOUNDS']
CCSM Climatological Data Atmosphere Model v.6.0Entry ID: NCAR_DATM6
Abstract: CCSM coupled model is based on a framework which divides the complete climate system into component models connected by a coupler. This design requires four component models -- atmosphere, sea-ice, land, and ocean -- each connected to the Coupler, and each exchanging data with the Coupler only.
The Climatological Data Atmosphere Model (datm) functions as the atmosphere component in a CCSM ... configuration. The datm atmosphere component interacts with the Coupler just like any atmosphere model would, but it is not an active model, rather, it takes atmosphere data from an input data file and sends it to the Coupler, ignoring any forcing data received from the Coupler. Typically the input data file contains mean daily data generated by an active CCSM atmosphere model (it's unlikely that real world observations exists for all the required fields). Such a "dummy" atmosphere model is useful for doing ocean ice spinup runs.
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Role: TECHNICAL CONTACT
Email: ccsm at ucar.edu
Climate and Global Dynamics Division National Center for Atmospheric Research P.O. Box 3000
Province or State: CO
Postal Code: 80307-3000
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