Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019JD032094 |
Transport From the Asian Summer Monsoon Anticyclone Over the Western Pacific | |
Honomichl, Shawn B.; Pan, Laura L. | |
2020-07-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2020 |
卷号 | 125期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | The subseasonal scale dynamics of the Asian summer monsoon (ASM) upper troposphere (UT) anticyclone has been identified as a primary mechanism for convectively lofted Asian boundary layer air to leave the confinement of the anticyclone and impact the global UT and lower stratosphere (UTLS). This work quantifies eastward eddy shedding associated with the subseasonal scale oscillation of the anticyclone and associated chemical transport. Using reanalysis data together with satellite trace gas data, we examine the correlation between enhanced tropospheric trace gas species and the presence of a secondary anticyclone over the western Pacific Ocean. To diagnose the role of the western Pacific anticyclone (WPA) in the transport of ASM air into the global UTLS, transport pathways and transit times of air found within the WPA are analyzed using Lagrangian kinematic trajectories. Results show that about two thirds of the air within the WPA originates from, or is influenced by, the greater region of the Tibetan anticyclone. After leaving the WPA, air favors two pathways forward: eastward following the subtropical jet and southwestward following UTLS anticyclonic flow. Approximately 60% of the air parcels cross the tropopause into the lower stratosphere within 30 days, though most cross within a few days. These results highlight opportunities for investigating the impact of the ASM on global UTLS chemical and aerosol composition over the western Pacific via research aircraft. |
英文关键词 | Asian Monsoon Transport Upper Tropospheric Chemical Composition Trajectory Modeling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000551484700031 |
WOS关键词 | BOUNDARY-LAYER SOURCES ; LOWER STRATOSPHERE ; UPPER TROPOSPHERE ; BIMODALITY ; IMPACT ; VARIABILITY ; PATHWAYS ; TYPHOONS ; AEROSOL ; MODEL |
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/289501 |
专题 | 气候变化 |
作者单位 | Natl Ctr Atmospher Res, Atmospher Chem Observat & Modeling Lab, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Honomichl, Shawn B.,Pan, Laura L.. Transport From the Asian Summer Monsoon Anticyclone Over the Western Pacific[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2020,125(13). |
APA | Honomichl, Shawn B.,&Pan, Laura L..(2020).Transport From the Asian Summer Monsoon Anticyclone Over the Western Pacific.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,125(13). |
MLA | Honomichl, Shawn B.,et al."Transport From the Asian Summer Monsoon Anticyclone Over the Western Pacific".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 125.13(2020). |
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