2144 JOURNAL OF CLIMATE VOLUME 19 The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3)
A new version of the Community Atmosphere Model (CAM) has been developed and released to the climate community. CAM Version 3 (CAM3) is an atmospheric general circulation model that includes the Community Land Model (CLM3), an optional slab ocean model, and a thermodynamic sea ice model. The dynamic...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.143.6724 2023-05-15T13:15:01+02:00 2144 JOURNAL OF CLIMATE VOLUME 19 The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3) William D. Collins Philip J. Rasch Byron A. Boville James J. Hack James R. Mccaa David L. Williamson Bruce P. Briegleb Cecilia M. Bitz Shian-jiann Lin Minghua Zhang The Pennsylvania State University CiteSeerX Archives 2005 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.143.6724 http://www.gfdl.noaa.gov/reference/bibliography/2006/wdc0601.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.143.6724 http://www.gfdl.noaa.gov/reference/bibliography/2006/wdc0601.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.gfdl.noaa.gov/reference/bibliography/2006/wdc0601.pdf text 2005 ftciteseerx 2016-01-07T15:03:07Z A new version of the Community Atmosphere Model (CAM) has been developed and released to the climate community. CAM Version 3 (CAM3) is an atmospheric general circulation model that includes the Community Land Model (CLM3), an optional slab ocean model, and a thermodynamic sea ice model. The dynamics and physics in CAM3 have been changed substantially compared to implementations in previous versions. CAM3 includes options for Eulerian spectral, semi-Lagrangian, and finite-volume formulations of the dynamical equations. It supports coupled simulations using either finite-volume or Eulerian dynamics through an explicit set of adjustable parameters governing the model time step, cloud parameterizations, and condensation processes. The model includes major modifications to the parameterizations of moist processes, radiation processes, and aerosols. These changes have improved several aspects of the simulated climate, including more realistic tropical tropopause temperatures, boreal winter land surface temperatures, surface insolation, and clear-sky surface radiation in polar regions. The variation of cloud radiative forcing during ENSO events exhibits much better agreement with satellite observations. Despite these improvements, several systematic biases reduce the fidelity of the simulations. These biases include underestimation of tropical variability, errors in tropical oceanic surface fluxes, underestimation of implied ocean heat transport in the Southern Hemisphere, excessive surface stress in the storm tracks, and offsets in the 500-mb height field and the Aleutian low. 1. Text aleutian low Sea ice Unknown |
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A new version of the Community Atmosphere Model (CAM) has been developed and released to the climate community. CAM Version 3 (CAM3) is an atmospheric general circulation model that includes the Community Land Model (CLM3), an optional slab ocean model, and a thermodynamic sea ice model. The dynamics and physics in CAM3 have been changed substantially compared to implementations in previous versions. CAM3 includes options for Eulerian spectral, semi-Lagrangian, and finite-volume formulations of the dynamical equations. It supports coupled simulations using either finite-volume or Eulerian dynamics through an explicit set of adjustable parameters governing the model time step, cloud parameterizations, and condensation processes. The model includes major modifications to the parameterizations of moist processes, radiation processes, and aerosols. These changes have improved several aspects of the simulated climate, including more realistic tropical tropopause temperatures, boreal winter land surface temperatures, surface insolation, and clear-sky surface radiation in polar regions. The variation of cloud radiative forcing during ENSO events exhibits much better agreement with satellite observations. Despite these improvements, several systematic biases reduce the fidelity of the simulations. These biases include underestimation of tropical variability, errors in tropical oceanic surface fluxes, underestimation of implied ocean heat transport in the Southern Hemisphere, excessive surface stress in the storm tracks, and offsets in the 500-mb height field and the Aleutian low. 1. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
William D. Collins Philip J. Rasch Byron A. Boville James J. Hack James R. Mccaa David L. Williamson Bruce P. Briegleb Cecilia M. Bitz Shian-jiann Lin Minghua Zhang |
spellingShingle |
William D. Collins Philip J. Rasch Byron A. Boville James J. Hack James R. Mccaa David L. Williamson Bruce P. Briegleb Cecilia M. Bitz Shian-jiann Lin Minghua Zhang 2144 JOURNAL OF CLIMATE VOLUME 19 The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3) |
author_facet |
William D. Collins Philip J. Rasch Byron A. Boville James J. Hack James R. Mccaa David L. Williamson Bruce P. Briegleb Cecilia M. Bitz Shian-jiann Lin Minghua Zhang |
author_sort |
William D. Collins |
title |
2144 JOURNAL OF CLIMATE VOLUME 19 The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3) |
title_short |
2144 JOURNAL OF CLIMATE VOLUME 19 The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3) |
title_full |
2144 JOURNAL OF CLIMATE VOLUME 19 The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3) |
title_fullStr |
2144 JOURNAL OF CLIMATE VOLUME 19 The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3) |
title_full_unstemmed |
2144 JOURNAL OF CLIMATE VOLUME 19 The Formulation and Atmospheric Simulation of the Community Atmosphere Model Version 3 (CAM3) |
title_sort |
2144 journal of climate volume 19 the formulation and atmospheric simulation of the community atmosphere model version 3 (cam3) |
publishDate |
2005 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.143.6724 http://www.gfdl.noaa.gov/reference/bibliography/2006/wdc0601.pdf |
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aleutian low Sea ice |
genre_facet |
aleutian low Sea ice |
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http://www.gfdl.noaa.gov/reference/bibliography/2006/wdc0601.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.143.6724 http://www.gfdl.noaa.gov/reference/bibliography/2006/wdc0601.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766266514193776640 |