DOI: 10.1002/2014GL062468
论文题名: Gravity waves simulated by high-resolution Whole Atmosphere Community Climate Model
作者: Liu H.-L. ; McInerney J.M. ; Santos S. ; Lauritzen P.H. ; Taylor M.A. ; Pedatella N.M.
刊名: Geophysical Research Letters
ISSN: 0094-9457
EISSN: 1944-9188
出版年: 2014
卷: 41, 期: 24 起始页码: 9106
结束页码: 9112
语种: 英语
英文关键词: atmosphere coupling
; general circulation model
; gravity waves
; high-resolution model
; whole atmosphere model
Scopus关键词: Climatology
; Earth atmosphere
; Gravity waves
; Kinetic energy
; Kinetics
; Storms
; Tides
; Upper atmosphere
; Atmosphere general circulation models
; Atmosphere modeling
; General circulation model
; High-resolution models
; National center for atmospheric researches
; Sounding of the atmosphere using broadband emission radiometry
; Whole atmosphere community climate models
; Zonal-mean zonal winds
; Climate models
; atmosphere-ocean coupling
; atmospheric general circulation model
; gravity wave
; kinetic energy
; mesoscale meteorology
; parameterization
; radiometer
; temperature gradient
; wind forcing
; zonal wind
英文摘要: For the first time a mesoscale-resolving whole atmosphere general circulation model has been developed, using the National Center for Atmospheric Research Whole Atmosphere Community Climate Model with ∼0.25° horizontal resolution and 0.1 scale height vertical resolution above the middle stratosphere (higher resolution below). This is made possible by the high accuracy and high scalability of the spectral element dynamical core from the High-Order Method Modeling Environment. For the simulated January-February period, the latitude-height structure and the magnitudes of the temperature variance compare well with those deduced from the Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) observations. The simulation reveals the increasing dominance of gravity waves (GWs) at higher altitudes through both the height dependence of the kinetic energy spectra, which display a steeper slope (∼-3) in the stratosphere and an increasingly shallower slope above, and the increasing spatial extent of GWs (including a planetary-scale extent of a concentric GW excited by a tropical cyclone) at higher altitudes. GW impacts on the large-scale flow are evaluated in terms of zonal mean zonal wind and tides: with no GW drag parameterized in the simulations, forcing by resolved GWs does reverse the summer mesospheric wind, albeit at an altitude higher than climatology, and only slows down the winter mesospheric wind without closing it. The hemispheric structures and magnitudes of diurnal and semidiurnal migrating tides compare favorably with observations. Key PointsFirst mesoscale-resolving whole atmosphere general circulation modelSimulation reveals the growing dominance of gravity waves with altitudeGravity waves and their large-scale impacts evaluated ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921844948&doi=10.1002%2f2014GL062468&partnerID=40&md5=f6c1f260367988e9b5c22c77fbe9bd57
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6721
Appears in Collections: 气候减缓与适应
There are no files associated with this item.
作者单位: High Altitude Observatory, National Center for Atmospheric Research, Boulder, CO, United States
Recommended Citation:
Liu H.-L.,McInerney J.M.,Santos S.,et al. Gravity waves simulated by high-resolution Whole Atmosphere Community Climate Model[J]. Geophysical Research Letters,2014-01-01,41(24).