Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-18-5655-2018 |
Dynamics and composition of the Asian summer monsoon anticyclone | |
Gottschaldt, Klaus-Dirk1; Schlager, Hans1; Baumann, Robert1; Cai, Duy Sinh1; Eyring, Veronika1; Graf, Phoebe1; Grewe, Volker1,2; Joeckel, Patrick1; Jurkat-Witschas, Tina1; Voigt, Christiane1,3; Zahn, Andreas4; Ziereis, Helmut1 | |
2018-04-24 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2018 |
卷号 | 18期号:8页码:5655-5675 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Netherlands |
英文摘要 | This study places HALO research aircraft observations in the upper-tropospheric Asian summer monsoon anticyclone (ASMA) into the context of regional, intra-annual variability by hindcasts with the ECHAM/MESSy Atmospheric Chemistry (EMAC) model. The observations were obtained during the Earth System Model Validation (ESM-Val) campaign in September 2012. Observed and simulated tracer-tracer relations reflect photochemical O-3 production as well as in-mixing from the lower troposphere and the tropopause layer. The simulations demonstrate that tropospheric trace gas profiles in the monsoon season are distinct from those in the rest of the year, and the measurements reflect the main processes acting throughout the monsoon season. Net photochemical O-3 production is significantly enhanced in the ASMA, where uplifted precursors meet increased NOx, mainly produced by lightning. An analysis of multiple monsoon seasons in the simulation shows that stratospherically influenced tropopause layer air is regularly entrained at the eastern ASMA flank and then transported in the southern fringe around the interior region. Radial transport barriers of the circulation are effectively overcome by subseasonal dynamical instabilities of the anticyclone, which occur quite frequently and are of paramount importance for the trace gas composition of the ASMA. Both the isentropic entrainment of O-3-rich air and the photochemical conversion of uplifted O-3-poor air tend to increase O-3 in the ASMA outflow. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430745200002 |
WOS关键词 | BOUNDARY-LAYER SOURCES ; IN-SITU MEASUREMENTS ; UPPER TROPOSPHERE ; LOWER STRATOSPHERE ; AIR-POLLUTION ; LOWERMOST STRATOSPHERE ; TRANSPORT PATHWAYS ; NITROGEN-OXIDES ; SOUTHEAST-ASIA ; OZONE MAXIMUM |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; 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/21706 |
专题 | 地球科学 |
作者单位 | 1.Deutsch Zentrum Luft & Raumfahrt DLR, Inst Phys Atmosphare, Oberpfaffenhofen, Germany; 2.Delft Univ Technol, Aerosp Engn, Delft, Netherlands; 3.Johannes Gutenberg Univ Mainz, Inst Phys Atmosphare, Mainz, Germany; 4.KIT, Inst Meteorol & Klimaforsch, Karlsruhe, Germany |
推荐引用方式 GB/T 7714 | Gottschaldt, Klaus-Dirk,Schlager, Hans,Baumann, Robert,et al. Dynamics and composition of the Asian summer monsoon anticyclone[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(8):5655-5675. |
APA | Gottschaldt, Klaus-Dirk.,Schlager, Hans.,Baumann, Robert.,Cai, Duy Sinh.,Eyring, Veronika.,...&Ziereis, Helmut.(2018).Dynamics and composition of the Asian summer monsoon anticyclone.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(8),5655-5675. |
MLA | Gottschaldt, Klaus-Dirk,et al."Dynamics and composition of the Asian summer monsoon anticyclone".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.8(2018):5655-5675. |
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