Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-16-0166.1 |
Simulation, Modeling, and Dynamically Based Parameterization of Organized Tropical Convection for Global Climate Models | |
Moncrieff, Mitchell W.; Liu, Changhai; Bogenschutz, Peter | |
2017-05-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2017 |
卷号 | 74期号:5 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | A new approach for treating organized convection in global climate models (GCMs) referred to as multiscale coherent structure parameterization (MCSP) introduces physical and dynamical effects of organized convection that are missing from contemporary parameterizations. The effects of vertical shear are approximated by a nonlinear slantwise overturning model based on Lagrangian conservation principles. Simulation of the April 2009 Madden-Julian oscillation event during the Year of Tropical Convection (YOTC) over the Indian Ocean using the Weather Research and Forecasting (WRF) Model at 1.3-km grid spacing identifies self-similar properties for squall lines, MCSs, and superclusters embedded in equatorial waves. The slantwise overturning model approximates this observed self-similarity. The large-scale effects of MCSP are examined in two categories of GCM. First, large-scale convective systems simulated in an aquaplanet model are approximated by slantwise overturning with attention to convective momentum transport. Second, MCSP is utilized in the Community Atmosphere Model, version 5.5 (CAM5.5), as tendency equations for second-baroclinic heating and convective momentum transport. The difference between MCSP and CAM5.5 is a direct measure of the global effects of organized convection. Consistent with TRMM measurements, the MCSP generates large-scale precipitation patterns in the tropical warm pool and the adjoining locale; improves precipitation in the intertropical convergence zone (ITCZ), South Pacific convergence zone (SPCZ), and Maritime Continent regions; and affects tropical wave modes. In conclusion, the treatment of organized convection by MCSP is salient for the next generation of GCMs. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000400730900002 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; SIMPLE MULTICLOUD PARAMETERIZATION ; COMMUNITY ATMOSPHERE MODEL ; INCLUDING MASS FLUXES ; LARGE-SCALE DYNAMICS ; MOMENTUM TRANSPORT ; PART I ; EQUATORIAL WAVES ; WESTERN PACIFIC ; TOGA COARE |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/29572 |
专题 | 地球科学 |
作者单位 | Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Moncrieff, Mitchell W.,Liu, Changhai,Bogenschutz, Peter. Simulation, Modeling, and Dynamically Based Parameterization of Organized Tropical Convection for Global Climate Models[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2017,74(5). |
APA | Moncrieff, Mitchell W.,Liu, Changhai,&Bogenschutz, Peter.(2017).Simulation, Modeling, and Dynamically Based Parameterization of Organized Tropical Convection for Global Climate Models.JOURNAL OF THE ATMOSPHERIC SCIENCES,74(5). |
MLA | Moncrieff, Mitchell W.,et al."Simulation, Modeling, and Dynamically Based Parameterization of Organized Tropical Convection for Global Climate Models".JOURNAL OF THE ATMOSPHERIC SCIENCES 74.5(2017). |
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