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DOI10.1029/2018MS001576
Control of Convection in High-Resolution Simulations of Tropical Cyclogenesis
Raymond D.J.; Kilroy G.
发表日期2019
ISSN19422466
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
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
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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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