DOI: 10.1002/2013MS000303
Scopus记录号: 2-s2.0-84904860175
论文题名: Effects of vertical resolution and nonorographic gravity wave drag on the simulated climate in the Community Atmosphere Model, version 5
作者: Richter J ; H ; , Solomon A ; , Bacmeister J ; T
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2014
卷: 6, 期: 2 起始页码: 357
结束页码: 383
语种: 英语
英文关键词: Clouds
; Computer simulation
; Drag
; Gravity waves
; Models
; Troposphere
; climate
; Community atmosphere model
; General circulation model
; Global circulation model
; Lower stratospheric temperature
; Nonorographic gravity wave drag
; Quasi-biennial oscillation
; Vertical resolution
; Climate models
英文摘要: Horizontal resolution of general circulation models (GCMs) has significantly increased during the last decade, however these changes were not accompanied by similar changes in vertical resolution. In our study, the Community Atmosphere Model, version 5 (CAM5) is used to study the sensitivity of climate to vertical resolution and nonorographic gravity wave drag. Nonorographic gravity wave drag is typically omitted from low-top GCMs, however as we show, its influence on climate can be seen all the way to the surface. We show that an increase in vertical resolution from 1200 to 500 m in the free troposphere and lower stratosphere in CAM5 improves the representation of near-tropopause temperatures, lower stratospheric temperatures, and surface wind stresses. In combination with nonorographic gravity waves, CAM5 with increased vertical resolution produces a realistic Quasi-Biennial Oscillation (QBO), has an improved seasonal cycle of temperature in the extratropics, and represents better the coupling between the stratosphere and the troposphere. Key Points Vertical resolution has a significant impact on the mean simulated climate Increased vertical resolution causes warming near the tropopause Vertical resolution and gravity waves impact surface stresses © 2014. The Authors. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/76108
Appears in Collections: 影响、适应和脆弱性 气候变化与战略
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作者单位: Climate and Global Dynamics Division, National Center for Atmospheric Research, Boulder CO, United States; Center for Ocean-Land-Atmosphere Studies (COLA), Institute of Global Environment and Society (IGES), Fairfax VA, United States
Recommended Citation:
Richter J,H,, Solomon A,et al. Effects of vertical resolution and nonorographic gravity wave drag on the simulated climate in the Community Atmosphere Model, version 5[J]. Journal of Advances in Modeling Earth Systems,2014-01-01,6(2)