DOI: 10.1002/grl.50353
论文题名: Impacts of introducing a convective gravity-wave parameterization upon the QBO in the Met Office Unified Model
作者: Kim Y.-H. ; Bushell A.C. ; Jackson D.R. ; Chun H.-Y.
刊名: Geophysical Research Letters
ISSN: 0094-9127
EISSN: 1944-8858
出版年: 2013
卷: 40, 期: 9 起始页码: 1873
结束页码: 1877
语种: 英语
英文关键词: convective gravity waves
; gravity wave parameterization
; SAO
Scopus关键词: Annual cycle
; Keypoints
; Momentum flux
; Quasi-biennial oscillation
; SAO
; Unified model
; Wave spectra
; Zonal wind
; Gravity waves
; Modulation
; Momentum
; Parameterization
; annual cycle
; atmospheric convection
; gravity wave
; momentum transfer
; parameterization
; quasi-biennial oscillation
; seasonality
; zonal wind
英文摘要: A convective gravity-wave parameterization (GWP) is introduced in the Met Office Unified Model (MetUM) in addition to the existing GWPs, and the tropical quasi-biennial oscillation (QBO) is simulated. We replace a significant amount of momentum flux, which is originally launched by the background GWP, with the convective gravity-wave (CGW) momentum flux with a broad wave spectrum that is explicitly determined by the convective sources. Compared to the experiment without the CGW parameterization, including the CGW parameterization results in a greater variability in the duration of each phase of the QBO, which is closer to observed. Including the CGWs also strengthens the annual cycle of zonal wind and it allows for stronger modulation of the semi-annual oscillation. Key Points Introducing a convective GW parameterization increases variations in the QBOIntroducing the parameterization strengthens the annual cycle of tropical windIntroducing the parameterization allows for seasonal modulation of the SAO ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879088045&doi=10.1002%2fgrl.50353&partnerID=40&md5=72ca62f27f189f859beed0bd4c01324f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6391
Appears in Collections: 气候减缓与适应
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作者单位: Department of Atmospheric Sciences, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-749, South Korea
Recommended Citation:
Kim Y.-H.,Bushell A.C.,Jackson D.R.,et al. Impacts of introducing a convective gravity-wave parameterization upon the QBO in the Met Office Unified Model[J]. Geophysical Research Letters,2013-01-01,40(9).