DOI: 10.1002/2014GL060501
论文题名: Observations of gravity wave forcing of the mesopause region during the January 2013 major Sudden Stratospheric Warming
作者: De Wit R.J. ; Hibbins R.E. ; Espy P.J. ; Orsolini Y.J. ; Limpasuvan V. ; Kinnison D.E.
刊名: Geophysical Research Letters
ISSN: 0094-9994
EISSN: 1944-9725
出版年: 2014
卷: 41, 期: 13 起始页码: 4745
结束页码: 4752
语种: 英语
英文关键词: elevated stratopause event (ESE)
; gravity wave forcing
; gravity wave momentum flux
; Sudden Stratospheric Warming (SSW)
; vertical coupling
Scopus关键词: Momentum
; Radar systems
; elevated stratopause event (ESE)
; Gravity wave momentum
; Meteor radar systems
; Middle atmosphere
; Stratospheric warmings
; Sudden stratospheric warming
; Vertical coupling
; Whole atmosphere community climate models
; Gravity waves
英文摘要: Studies of vertical and interhemispheric coupling during Sudden Stratospheric Warmings (SSWs) suggest that gravity wave (GW) momentum flux divergence plays a key role in forcing the middle atmosphere, although observational validation of GW forcing is limited. We present a whole atmosphere view of zonal winds from the surface to 100 km during the January 2013 major SSW, together with observed GW momentum fluxes in the mesopause region derived from uninterrupted high-resolution meteor radar observations from an All-Sky Interferometric Meteor Radar system located at Trondheim, Norway (63.4°N, 10.5°E). Observations show GW momentum flux divergence 6 days prior to the SSW onset, producing an eastward forcing with peak values of ∼+145 ± 60ms-1d-1. As the SSW evolves, GW forcing turns westward, reaching a minimum of ∼-240 ± 70ms-1d-1∼+18 days after the SSW onset. These results are discussed in light of previous studies and simulations using the Whole Atmosphere Community Climate Model with Specified Dynamics. Key Points Observed mesopause GW momentum flux and forcing during a major SSW are studied Comparing observed and WACCM-SD GW forcing shows both methods agree well During the SSW GW forcing peaks eastward then turns strongly westward ©2014. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84903401583&doi=10.1002%2f2014GL060501&partnerID=40&md5=dbec21b576ad0a29d5d50388a10fc01e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7258
Appears in Collections: 气候减缓与适应
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作者单位: Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
Recommended Citation:
De Wit R.J.,Hibbins R.E.,Espy P.J.,et al. Observations of gravity wave forcing of the mesopause region during the January 2013 major Sudden Stratospheric Warming[J]. Geophysical Research Letters,2014-01-01,41(13).