Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-18-0173.1 |
Balanced Dynamics and Moisture Quasi-Equilibrium in DYNAMO Convection | |
Sessions, Sharon L.1,2; Sentic, Stipo3; Raymond, David J.1,3 | |
2019-09-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2019 |
卷号 | 76期号:9页码:2781-2799 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Tropical convection that occurs on large-enough space and time scales may evolve in response to large-scale balanced circulations. In this scenario, large-scale midtropospheric vorticity anomalies modify the atmospheric stability by virtue of thermal wind gradient balance. The convective vertical mass flux and the moisture profile adjust to changes in atmospheric stability that affect moisture and entropy transport. We hypothesize that the convection observed during the 2011 DYNAMO field campaign evolves in response to balanced dynamics. Strong relationships between midtropospheric vorticity and atmospheric stability confirm the relationship between the dynamic and the thermodynamic environments, while robust relationships between the atmospheric stability, the vertical mass flux, and the saturation fraction provide evidence of moisture adjustment. These results are important because the part of convection that occurs as a response to balanced dynamics is potentially predictable. Furthermore, the diagnostics used in this work provide a simple framework for model evaluation, and suggest that one way to improve simulations of large-scale organized deep tropical convection in global models is to adequately capture the relationship between the dynamic and thermodynamic environments in convective parameterizations. |
英文关键词 | Convection Deep convection Madden-Julian oscillation Potential vorticity Thermodynamics |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000482414900002 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; STATIC ENERGY BUDGET ; GLOBAL CIRCUMNAVIGATING MODE ; LARGE-SCALE MODES ; EASTWARD PROPAGATION ; RELATIVE ROLES ; MJO INITIATION ; WATER-VAPOR ; PRECIPITATION ; IMPACT |
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/186798 |
专题 | 地球科学 |
作者单位 | 1.New Mexico Inst Min & Technol, Dept Phys, Socorro, NM 87801 USA; 2.New Mexico Inst Min & Technol, Geophys Res Ctr, Socorro, NM 87801 USA; 3.New Mexico Inst Min & Technol, Climate & Water Consortium, Socorro, NM 87801 USA |
推荐引用方式 GB/T 7714 | Sessions, Sharon L.,Sentic, Stipo,Raymond, David J.. Balanced Dynamics and Moisture Quasi-Equilibrium in DYNAMO Convection[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2019,76(9):2781-2799. |
APA | Sessions, Sharon L.,Sentic, Stipo,&Raymond, David J..(2019).Balanced Dynamics and Moisture Quasi-Equilibrium in DYNAMO Convection.JOURNAL OF THE ATMOSPHERIC SCIENCES,76(9),2781-2799. |
MLA | Sessions, Sharon L.,et al."Balanced Dynamics and Moisture Quasi-Equilibrium in DYNAMO Convection".JOURNAL OF THE ATMOSPHERIC SCIENCES 76.9(2019):2781-2799. |
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