Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-19-0159.1 |
Impacts of Radiation and Cold Pools on the Intensity and Vortex Tilt of Weak Tropical Cyclones Interacting with Vertical Wind Shear | |
Rios-Berrios, Rosimar | |
2020-02-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES
![]() |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2020 |
卷号 | 77期号:2页码:669-689 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Idealized numerical simulations of weak tropical cyclones (e.g., tropical depressions and tropical storms) in sheared environments indicate that vortex tilt reduction and convective symmetrization are key structural changes that can precede intensification. Through a series of ensembles of idealized numerical simulations, this study demonstrates that including radiation in the simulations affects the timing and variability of those structural changes. The underlying reason for those effects is a background thermodynamic profile with reduced energy available to fuel strong downdrafts; such a profile leads to weaker lower-tropospheric ventilation, greater azimuthal coverage of clouds and precipitation, and smaller vortex tilt with radiation. Consequently, the simulations with radiation allow for earlier intensification at stronger shear magnitudes than without radiation. An unexpected finding from this work is a reduction of both vortex tilt and intensity variability with radiation in environments with 5 m s(-1) deep-layer shear. This reduction stems from reduced variability in nonlinear feedbacks between lower-tropospheric ventilation, cold pools, convection, and vortex tilt. Sensitivity experiments confirm the relationship between those processes and suggest that microphysical processes (e.g., rain evaporation) are major sources of uncertainty in the representation of weak, sheared tropical cyclones in numerical weather prediction models. |
英文关键词 | Cold pools Wind shear Tropical cyclones Longwave radiation Shortwave radiation Numerical analysis modeling |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000511936200002 |
WOS关键词 | UNEXPECTED RAPID INTENSIFICATION ; HIGH-RESOLUTION SIMULATION ; MIDLEVEL DRY AIR ; PART II ; ENVIRONMENTAL HELICITY ; ENSEMBLE APPROACH ; PREDICTABILITY ; HURRICANE ; PRECIPITATION ; FLOW |
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/280282 |
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 | Rios-Berrios, Rosimar. Impacts of Radiation and Cold Pools on the Intensity and Vortex Tilt of Weak Tropical Cyclones Interacting with Vertical Wind Shear[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2020,77(2):669-689. |
APA | Rios-Berrios, Rosimar.(2020).Impacts of Radiation and Cold Pools on the Intensity and Vortex Tilt of Weak Tropical Cyclones Interacting with Vertical Wind Shear.JOURNAL OF THE ATMOSPHERIC SCIENCES,77(2),669-689. |
MLA | Rios-Berrios, Rosimar."Impacts of Radiation and Cold Pools on the Intensity and Vortex Tilt of Weak Tropical Cyclones Interacting with Vertical Wind Shear".JOURNAL OF THE ATMOSPHERIC SCIENCES 77.2(2020):669-689. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Rios-Berrios, Rosimar]的文章 |
百度学术 |
百度学术中相似的文章 |
[Rios-Berrios, Rosimar]的文章 |
必应学术 |
必应学术中相似的文章 |
[Rios-Berrios, Rosimar]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论