Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1175/JAS-D-19-0253.1 |
Interhemispheric Coupling Mechanisms in the Middle Atmosphere of WACCM6 | |
Smith, A. K.1; Pedatella, N. M.2; Mullen, Z. K.3 | |
2020-03-01 | |
发表期刊 | JOURNAL OF THE ATMOSPHERIC SCIENCES |
ISSN | 0022-4928 |
EISSN | 1520-0469 |
出版年 | 2020 |
卷号 | 77期号:3页码:1101-1118 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Simulations with the Community Earth System Model, version 2, using the Whole Atmosphere Community Climate Model version 6 [CESM2(WACCM6)] configuration, show evidence of dynamical coupling from the high latitudes of the winter middle atmosphere to the tropics and the middle and high latitudes of the summer hemisphere. Analysis of monthly and daily output covering 195 simulation years indicates that the response in the summer middle and high latitudes has a weak overall magnitude of a few kelvins or less in temperature but has a repeatable pattern whose structure and phase agree with observational studies. Lag correlation indicates that perturbations in wave activity in the winter stratosphere, as quantified by Eliassen-Palm (EP) flux divergence, are accompanied by perturbations in the transformed Eulerian-mean meridional wind extending into the summer hemisphere. There is not an appreciable correlation with momentum forcing in the summer hemisphere by either resolved waves or parameterized gravity waves. The rapid circulation response and the lack of a wave response in the summer hemisphere suggest that the interhemispheric coupling that is simulated in WACCM6 in both the stratosphere and the mesosphere owes its existence to a circulation that develops to restore balance to the zonally averaged state of the atmosphere. This is an alternative explanation for the coupling from the winter stratosphere to the summer mesosphere; previous studies have assumed a necessary role for wave activity in the summer hemisphere. |
英文关键词 | Stratospheric circulation |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000526717000005 |
WOS关键词 | BREWER-DOBSON CIRCULATION ; NORTHERN SUMMER PROGRAM ; INTERANNUAL VARIABILITY ; GLOBAL VARIATIONS ; WAVE ACTIVITY ; MESOSPHERE ; TEMPERATURE ; SIMULATION ; OZONE ; LINKS |
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/280294 |
专题 | 地球科学 |
作者单位 | 1.Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling, POB 3000, Boulder, CO 80307 USA; 2.Natl Ctr Atmospher Res, High Altitude Observ, POB 3000, Boulder, CO 80307 USA; 3.Univ Colorado, Dept Comp Sci, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Smith, A. K.,Pedatella, N. M.,Mullen, Z. K.. Interhemispheric Coupling Mechanisms in the Middle Atmosphere of WACCM6[J]. JOURNAL OF THE ATMOSPHERIC SCIENCES,2020,77(3):1101-1118. |
APA | Smith, A. K.,Pedatella, N. M.,&Mullen, Z. K..(2020).Interhemispheric Coupling Mechanisms in the Middle Atmosphere of WACCM6.JOURNAL OF THE ATMOSPHERIC SCIENCES,77(3),1101-1118. |
MLA | Smith, A. K.,et al."Interhemispheric Coupling Mechanisms in the Middle Atmosphere of WACCM6".JOURNAL OF THE ATMOSPHERIC SCIENCES 77.3(2020):1101-1118. |
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