Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-19-0225.1 |
Interactions between Moisture and Tropical Convection. Part I: The Coevolution of Moisture and Convection | |
Wolding, Brandon1; Dias, Juliana1; Kiladis, George1; Ahmed, Fiaz2; Powell, Scott W.3; Maloney, Eric4; Branson, Mark4 | |
2020-05-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
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ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2020 |
卷号 | 77期号:5页码:1783-1799 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Realistically representing the multiscale interactions between moisture and tropical convection remains an ongoing challenge for weather prediction and climate models. In this study, we revisit the relationship between precipitation and column saturation fraction (CSF) by investigating their tendencies in CSF-precipitation space using satellite and radar observations, as well as reanalysis. A well-known, roughly exponential increase in precipitation occurs as CSF increases above a "critical point," which acts as an attractor in CSF-precipitation space. Each movement away from and subsequent return toward the attractor results in a small net change of the coupled system, causing it to evolve in a cyclical fashion around the attractor. This cyclical evolution is characterized by shallow and convective precipitation progressively moistening the environment and strengthening convection, stratiform precipitation progressively weakening convection, and drying in the nonprecipitating and lightly precipitation regime. This behavior is evident across a range of spatiotemporal scales, suggesting that shortcomings in model representation of the joint evolution of convection and large-scale moisture will negatively impact a broad range of spatiotemporal scales. Novel process-level diagnostics indicate that several models, all implementing versions of the Zhang-McFarlane deep convective parameterization, exhibit unrealistic coupling between column moisture and convection. |
英文关键词 | Clouds Convection Cloud parameterizations Convective parameterization Model errors Tropical variability |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000535703800014 |
WOS关键词 | MADDEN-JULIAN OSCILLATION ; LARGE-SCALE DYNAMICS ; CLOUD CLUSTERS ; STRATIFORM INSTABILITY ; STATIC ENERGY ; WATER-VAPOR ; LIFE-CYCLE ; PRECIPITATION ; CLIMATE ; RAINFALL |
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/280343 |
专题 | 地球科学 |
作者单位 | 1.NOAA, Div Phys Sci, Earth Syst Res Lab, Boulder, CO 80305 USA; 2.Univ Calif Los Angeles, Atmospher & Ocean Sci, Los Angeles, CA USA; 3.Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA; 4.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA |
推荐引用方式 GB/T 7714 | Wolding, Brandon,Dias, Juliana,Kiladis, George,et al. Interactions between Moisture and Tropical Convection. Part I: The Coevolution of Moisture and Convection[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2020,77(5):1783-1799. |
APA | Wolding, Brandon.,Dias, Juliana.,Kiladis, George.,Ahmed, Fiaz.,Powell, Scott W..,...&Branson, Mark.(2020).Interactions between Moisture and Tropical Convection. Part I: The Coevolution of Moisture and Convection.JOURNAL OF THE ATMOSPHERIC SCIENCES,77(5),1783-1799. |
MLA | Wolding, Brandon,et al."Interactions between Moisture and Tropical Convection. Part I: The Coevolution of Moisture and Convection".JOURNAL OF THE ATMOSPHERIC SCIENCES 77.5(2020):1783-1799. |
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