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DOI | 10.1029/2018MS001576 |
Control of Convection in High-Resolution Simulations of Tropical Cyclogenesis | |
Raymond D.J.; Kilroy G. | |
发表日期 | 2019 |
ISSN | 19422466 |
起始页码 | 1582 |
结束页码 | 1599 |
卷号 | 11期号:6 |
英文摘要 | Three idealized high-resolution simulations of tropical storm formation from a weak vortex are analyzed. The three simulations include a case using warm rain microphysics, a similar case in which surface friction is omitted, and a case in which ice microphysics is used. The goal is to understand the mechanisms controlling the intensity and distribution of convection in the formation process in each of these cases. Simulations of convection in weak temperature gradient convective models show that a combination of low to middle tropospheric moist convective instability, the saturation fraction or column relative humidity, and the surface moist entropy flux explain a high percentage of the variance in precipitation and lower tropospheric vertical mass flux. Tropical cyclones differ from other convective environments in that intense frictional convergence occurs in the boundary layer. Adding a measure of convective inhibition to account for this process enables the lower tropospheric mass flux to be predicted even in the core regions of the simulated tropical cyclones. These results are pertinent to the development of more accurate convective parameterizations for large-scale models. ©2019. The Authors. |
英文关键词 | convection; tropical cyclogenesis; tropical cyclone |
语种 | 英语 |
scopus关键词 | Boundary layers; Friction; Heat convection; Hurricanes; Storms; Troposphere; Convective inhibition; Convective instabilities; Formation process; High resolution simulations; Large-scale models; Surface friction; Tropical cyclogenesis; Tropical cyclone; Tropics; boundary layer; convection; cyclogenesis; relative humidity; simulation; temperature gradient; tropical cyclone; tropical meteorology; vortex |
来源期刊 | Journal of Advances in Modeling Earth Systems
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/156901 |
作者单位 | Physics Department and Climate and Water Consortium, New Mexico Tech, Socorro, NM, United States; Meteorological Institute, Ludwig Maximilians University, Munich, Germany |
推荐引用方式 GB/T 7714 | Raymond D.J.,Kilroy G.. Control of Convection in High-Resolution Simulations of Tropical Cyclogenesis[J],2019,11(6). |
APA | Raymond D.J.,&Kilroy G..(2019).Control of Convection in High-Resolution Simulations of Tropical Cyclogenesis.Journal of Advances in Modeling Earth Systems,11(6). |
MLA | Raymond D.J.,et al."Control of Convection in High-Resolution Simulations of Tropical Cyclogenesis".Journal of Advances in Modeling Earth Systems 11.6(2019). |
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