Journal Article10.1175/2009JAS3112.1
Toward a Physically Based Gravity Wave Source Parameterization in a General Circulation Model
TL;DR: In this article, a configuration of the WACCM that replaces the arbitrarily specified GW source spectrum with GW source parameterizations is presented, which link GW generation to tropospheric quantities calculated by the GCM and provide a model-consistent GW representation.
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Abstract: Middle atmospheric general circulation models (GCMs) must employ a parameterization for small-scale gravity waves (GWs). Such parameterizations typically make very simple assumptions about gravity wave sources, such as uniform distribution in space and time or an arbitrarily specified GW source function. The authors present a configuration of the Whole Atmosphere Community Climate Model (WACCM) that replaces the arbitrarily specified GW source spectrum with GW source parameterizations. For the nonorographic wave sources, a frontal system and convective GW source parameterization are used. These parameterizations link GW generation to tropospheric quantities calculated by the GCM and provide a model-consistent GW representation. With the new GW source parameterization, a reasonable middle atmospheric circulation can be obtained and the middle atmospheric circulation is better in several respects than that generated by a typical GW source specification. In particular, the interannual NH stratospher...
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Citations
Climate Change from 1850 to 2005 Simulated in CESM1(WACCM)
Daniel R. Marsh,Michael J. Mills,Douglas E. Kinnison,Jean-Francois Lamarque,Natalia Calvo,Lorenzo M. Polvani +5 more
TL;DR: In this article, an ensemble of transient simulations using the NCAR Community Earth System Model (CESM) was conducted as part of phase 5 of the Coupled Model Intercomparison Project.
Development of the GEOS-5 atmospheric general circulation model: evolution from MERRA to MERRA2
TL;DR: The GEOS-5 AGCM presented in this paper is the model used as part of the GMAO MERRA2 reanalysis, global mesoscale simulations at 10 km resolution through 1.5 km resolution, the real-time numerical weather prediction system, and for atmosphere only, coupled ocean-atmosphere and coupled atmospherechemistry simulations.
The Beijing Climate Center Climate System Model (BCC-CSM): the main progress from CMIP5 to CMIP6
Tongwen Wu,Yixiong Lu,Yongjie Fang,Xiaoge Xin,Laurent Li,Laurent Li,Weiping Li,Weihua Jie,Jie Zhang,Yiming Liu,Li Zhang,Fang Zhang,Yanwu Zhang,Fanghua Wu,Jianglong Li,Min Chu,Zaizhi Wang,Xueli Shi,Xiangwen Liu,Min Wei,Anning Huang,Yaocun Zhang,Xiaohong Liu,Xiaohong Liu +23 more
TL;DR: In this paper, the main advancements of the Beijing Climate Center (BCC) climate system model from phase 5 of the Coupled Model Intercomparison Project (CMIP5) to phase 6 (CMP6) are presented, in terms of physical parameterizations and model performance.
The Whole Atmosphere Community Climate Model Version 6 (WACCM6)
Andrew Gettelman,Michael J. Mills,Douglas E. Kinnison,Rolando R. Garcia,Anne K. Smith,Daniel R. Marsh,Daniel R. Marsh,Simone Tilmes,Francis Vitt,Charles G. Bardeen,J. McInerny,Hanli Liu,Stanley C. Solomon,Lorenzo M. Polvani,Louisa K. Emmons,Jean-Francois Lamarque,Jadwiga H. Richter,A. S. Glanville,Julio T. Bacmeister,Adam S. Phillips,Richard Neale,Isla R. Simpson,Alice K. DuVivier,Alma Hodzic,William J. Randel +24 more
TL;DR: The Whole Atmosphere Community Climate Model version 6 (WACCM6) is a major update of the whole atmosphere modeling capability in the Community Earth System Model (CESM), featuring enhanced physical, chemical and aerosol parameterizations.
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Recent developments in gravity-wave effects in climate models and the global distribution of gravity-wave momentum flux from observations and models
M. J. Alexander,Marvin A. Geller,Charles McLandress,Saroja Polavarapu,Peter Preusse,Fabrizio Sassi,Kaoru Sato,Stephen D. Eckermann,Manfred Ern,Albert Hertzog,Yoshio Kawatani,Manuel Pulido,Tiffany A. Shaw,Michael Sigmond,Robert A. Vincent,Shingo Watanabe +15 more
TL;DR: In this article, a review of gravity-wave effects in stratosphere-resolving climate models, recent observations and analysis methods that reveal global patterns in gravitywave momentum fluxes and results of very-high-resolution model studies, and outline some future research requirements to improve the treatment of these waves in climate simulations.
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