Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD031382 |
Identifying Source Regions and the Distribution of Cross-Tropopause Convective Outflow Over North America During the Warm Season | |
Clapp, C. E.1; Smith, J. B.1; Bedka, K. M.2; Anderson, J. G.1,3,4 | |
2019-12-21 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:24页码:13750-13762 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | We analyzed the interaction between the North American monsoon anticyclone (NAMA) and summertime cross-tropopause convective outflow by applying a trajectory analysis to a climatology of convective overshooting tops (OTs) identified in GOES satellite images, which covers the domain from 29 degrees S to 68 degrees N and from 205 to 1.25 degrees W for the time period of May through September 2013. With this analysis we identified seasonally, geographically, and altitude-dependent variability in NAMA strength and in cross-tropopause convection that control their interaction. We find that the NAMA has the strongest impact on the circulation of convectively influenced air masses in August. Over the entire time period examined the intertropical convergence zone contributes the majority of OTs with a larger fraction of total OTs at 370 K (on average 70%) than at 400 K (on average 52%). During August at 370 K, the convectively influenced air masses within the NAMA circulation, as determined by the trajectory analysis, are primarily sourced from the intertropical convergence zone (monthly average of 66.1%), while at 400 K the Sierra Madres and the Central United States combined constitute the dominant source region (monthly average of 44.1%, compared to 36.6% of the combined Intertropical Convergence Zone regions). When evaluating the impact of cross-tropopause convection on the composition and chemistry of the upper troposphere and lower stratosphere, the effects of the NAMA on both the distribution of convective outflow and the residence time of convectively influenced air masses within the NAMA region must be considered. |
英文关键词 | NAMA convection circulation stratosphere |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000503692100001 |
WOS关键词 | STRATOSPHERIC WATER-VAPOR ; DECADAL CHANGES ; TRANSPORT ; PRECIPITATION ; CLIMATOLOGY ; IMAGER ; OZONE ; TTL |
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/225962 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Harvard Univ, Harvard John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA; 2.NASA, Langley Res Ctr, Hampton, VA 23665 USA; 3.Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA; 4.Harvard Univ, Dept Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Clapp, C. E.,Smith, J. B.,Bedka, K. M.,et al. Identifying Source Regions and the Distribution of Cross-Tropopause Convective Outflow Over North America During the Warm Season[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(24):13750-13762. |
APA | Clapp, C. E.,Smith, J. B.,Bedka, K. M.,&Anderson, J. G..(2019).Identifying Source Regions and the Distribution of Cross-Tropopause Convective Outflow Over North America During the Warm Season.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(24),13750-13762. |
MLA | Clapp, C. E.,et al."Identifying Source Regions and the Distribution of Cross-Tropopause Convective Outflow Over North America During the Warm Season".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.24(2019):13750-13762. |
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