Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD026482 |
Hemispheric differences in the annual cycle of tropical lower stratosphere transport and tracers | |
Tweedy, O. V.1; Waugh, D. W.1; Stolarski, R. S.1,2; Oman, L. D.2; Randel, W. J.3; Abalos, M.3 | |
2017-07-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Transport in the tropical lower stratosphere plays a major role in determining the composition of the entire stratosphere. Previous studies that quantified the relative role of transport processes have generally assumed well-mixed tropics and focused on tropical-wide average characteristics. However, it has recently been shown that there is a hemispheric difference in the annual cycle of tropical lower stratosphere ozone and other tracers, with a larger amplitude in the northern tropics (NT) than in the southern tropics (ST). In this study, we examined the ability of chemistry climate models (CCMs) to reproduce the hemispheric differences in ozone (O-3) and other tracers (i.e., hydrochloric acid, or HCl and nitrous oxide, or N2O), and then use the CCMs to examine the cause of these differences. Examination of CCM simulations from the CCMVal-2 project shows that the majority of the CCMs produce the observed feature of a larger annual cycle in the NT than ST O-3 and other tracers. However, only around a third of the models produce an ozone annual cycle similar to that observed. Transformed Eulerian Mean analysis of two of the CCMs shows that seasonality in vertical advection drives the seasonality in ST O-3 and N2O while seasonality of horizontal mixing drives the seasonality in NT O-3 and N2O, with a large increase in horizontal mixing during northern summer (associated with the Asian monsoon). Thus, latitudinal and longitudinal variations within the tropics have to be considered to fully understand the balance between transport processes in tropical lower stratosphere. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000407900300028 |
WOS关键词 | CHEMISTRY-CLIMATE MODEL ; MIDDLE ATMOSPHERE ; TECHNICAL NOTE ; OZONE ; TROPOPAUSE ; SIMULATIONS ; VARIABILITY ; SCENARIO ; TRENDS ; IMPACT |
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/32871 |
专题 | 气候变化 |
作者单位 | 1.JHU, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA; 2.NASA, Goddard Flight Ctr, Greenbelt, MD USA; 3.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Tweedy, O. V.,Waugh, D. W.,Stolarski, R. S.,et al. Hemispheric differences in the annual cycle of tropical lower stratosphere transport and tracers[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(13). |
APA | Tweedy, O. V.,Waugh, D. W.,Stolarski, R. S.,Oman, L. D.,Randel, W. J.,&Abalos, M..(2017).Hemispheric differences in the annual cycle of tropical lower stratosphere transport and tracers.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(13). |
MLA | Tweedy, O. V.,et al."Hemispheric differences in the annual cycle of tropical lower stratosphere transport and tracers".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.13(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论