A total energy error analysis of dynamical cores and physics-dynamics coupling in the Community Atmosphere Model (CAM)

A closed total energy (TE) budget is of utmost importance in coupled climate system modeling; in particular, the dynamical core or physics-dynamics coupling should ideally not lead to spurious TE sources/sinks. To assess this in a global climate model, a detailed analysis of the spurious sources/sinks of TE in the National Center for Atmospheric Research's Community Atmosphere Model (CAM) is given. This includes spurious sources/sinks associated with the parameterization suite, the dynamical core, TE definition discrepancies, and physics-dynamics coupling. The latter leads to a detailed discussion of the pros and cons of various physics-dynamics coupling methods commonly used in climate/weather modeling.

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Related Service #1 : Cheyenne: SGI ICE XA Cluster

Related Software #1 : Community Earth System Model - CESM2.0
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Copyright 2019 Author(s). This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International license.
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Author Lauritzen, Peter H.
Williamson, David
Publisher UCAR/NCAR - Library
Publication Date 2019-05-01T00:00:00
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Metadata Date 2025-07-11T19:29:21.253302
Metadata Record Identifier edu.ucar.opensky::articles:22723
Metadata Language eng; USA
Suggested Citation Lauritzen, Peter H., Williamson, David. (2019). A total energy error analysis of dynamical cores and physics-dynamics coupling in the Community Atmosphere Model (CAM). UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7x63p8k. Accessed 05 August 2025.

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