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DOI | 10.1175/JAS-D-18-0032.1 |
Determination of Best Tropopause Definition for Convective Transport Studies | |
Maddox, Emily M.; Mullendore, Gretchen L. | |
2018-10-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2018 |
卷号 | 75期号:10页码:3433-3446 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | An idealized three-dimensional cloud-resolving model is used to investigate the sensitivity of cross-tropopause convective mass transport to tropopause definition. A simulation is conducted to encompass the growth and decay cycle of a supercell thunderstorm, with a focus on irreversible transport above the tropopause. Five previously published tropopause definitions are evaluated: World Meteorological Organization (WMO) temperature lapse rate, potential vorticity, static stability, vertical curvature of the Brunt-Vaisala frequency, and stratospheric tracer concentration. By analyzing the behavior of different definitions both during and after active convection, we are able to define best choices for tropopause definitions as those that return to states most closely matching the preconvective environment. Potential vorticity and stratospheric tracer concentration are shown to perform poorly when analyzing deep convection. The WMO thermal tropopause and static stability definitions are found to perform the best, providing similar tropopause placement and quantities of irreversible mass transport. This investigation highlights the challenges of defining a tropopause in the vicinity of deep convection and demonstrates the need to clearly communicate calculation methods and threshold choices in the literature. |
英文关键词 | Convective storms Convective-scale processes Mass fluxes transport Tropopause |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000443799400003 |
WOS关键词 | STRATOSPHERE ; TROPOSPHERE ; AIR |
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/29557 |
专题 | 地球科学 |
作者单位 | Univ North Dakota, Dept Atmospher Sci, Grand Forks, ND 58202 USA |
推荐引用方式 GB/T 7714 | Maddox, Emily M.,Mullendore, Gretchen L.. Determination of Best Tropopause Definition for Convective Transport Studies[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2018,75(10):3433-3446. |
APA | Maddox, Emily M.,&Mullendore, Gretchen L..(2018).Determination of Best Tropopause Definition for Convective Transport Studies.JOURNAL OF THE ATMOSPHERIC SCIENCES,75(10),3433-3446. |
MLA | Maddox, Emily M.,et al."Determination of Best Tropopause Definition for Convective Transport Studies".JOURNAL OF THE ATMOSPHERIC SCIENCES 75.10(2018):3433-3446. |
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