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The Community Earth System Model (CESM) is a fully coupled numerical simulation of the Earth system consisting of atmospheric, ocean, ice, land surface, carbon cycle, and other components. CESM includes a climate model providing state-of-art simulations of the Earth's past, present, and future. It is the successor of the Community Climate System Model (CCSM), specifically version 4 (CCSMv4), which provided the initial atmospheric component for CESM. Strong ensemble forecasting capabilities, CESM-LE (CESM-Large Ensemble), were developed at the onset to control for error and biases across different model runs (realizations). Simulations from the Earth's surface through the thermosphere are generated utilizing the Whole Atmosphere Community Climate Model (WACCM). CESM1 was released in 2010 with primary development by the Climate and Global Dynamics Division (CGD) of the National Center for Atmospheric Research (NCAR), and significant funding by the National Science Foundation (NSF) and the Department of Energy (DoE).

See also

• Model for Prediction Across Scales (MPAS)

References

1. Hurrell, James W.; M. M. Holland; P. R. Gent (2013). "The Community Earth System Model: A Framework for Collaborative Research". Bulletin of the American Meteorological Society. 94 (9): 1339–60. Bibcode:2013BAMS...94.1339H. doi:10.1175/BAMS-D-12-00121.1. OSTI 1565081. S2CID 24603627.
2. Kay, J. E.; et al. (2014). "The Community Earth System Model (CESM) Large Ensemble Project: A Community Resource for Studying Climate Change in the Presence of Internal Climate Variability". Bull. Am. Meteorol. Soc. 96 (8): 1333–1349. Bibcode:2015BAMS...96.1333K. doi:10.1175/BAMS-D-13-00255.1.
3. CESM: Models Archived 2015-04-11 at the Wayback Machine

External links

• CESM homepage
• CESM/CCSM Special Collection of the Journal of Climate Archived 2019-12-20 at the Wayback Machine

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