Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere
The Asian summer monsoon is linked to deep convection over the Indian subcontinent and to an anticyclonic flow that extends from the upper troposphere into the lower stratosphere region. This allows both gas-phase aerosol precursors and aerosol particles from surface sources to reach the stratospher...
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Copernicus Publications
2024
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Online Access: | https://epic.awi.de/id/eprint/58840/ https://epic.awi.de/id/eprint/58840/1/EGU24-8648-print.pdf https://doi.org/10.5194/egusphere-egu24-8648 https://hdl.handle.net/10013/epic.e9491bc3-f6d8-40d3-a760-6f145e8d9b14 |
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ftawi:oai:epic.awi.de:58840 2024-06-23T07:48:36+00:00 Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere Tritscher, Ines Graßl, Sandra Ritter, Christoph Vogel, Bärbel 2024-05-31 application/pdf https://epic.awi.de/id/eprint/58840/ https://epic.awi.de/id/eprint/58840/1/EGU24-8648-print.pdf https://doi.org/10.5194/egusphere-egu24-8648 https://hdl.handle.net/10013/epic.e9491bc3-f6d8-40d3-a760-6f145e8d9b14 unknown Copernicus Publications https://epic.awi.de/id/eprint/58840/1/EGU24-8648-print.pdf Tritscher, I. , Graßl, S. orcid:0000-0001-8687-833X , Ritter, C. and Vogel, B. (2024) Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere , [Other] doi:10.5194/egusphere-egu24-8648 <https://doi.org/10.5194/egusphere-egu24-8648> , hdl:10013/epic.e9491bc3-f6d8-40d3-a760-6f145e8d9b14 EPIC3Copernicus Publications Other notRev 2024 ftawi https://doi.org/10.5194/egusphere-egu24-8648 2024-06-04T23:48:21Z The Asian summer monsoon is linked to deep convection over the Indian subcontinent and to an anticyclonic flow that extends from the upper troposphere into the lower stratosphere region. This allows both gas-phase aerosol precursors and aerosol particles from surface sources to reach the stratosphere. The horizontal transport out of the Asian monsoon anticyclone towards the extratropical lower stratosphere of the Northern Hemisphere is the focus of this study. We present an annual record of Lidar observations at AWIPEV in Ny-Ålesund. The data record is free from obvious layers like polar stratospheric clouds, volcanic eruptions or forest fires. Nevertheless, the lower stratosphere reveals an annual cycle with lower backscatter values in winter and spring and higher backscatter values in summer and autumn. The Lidar measurements have been linked to backward trajectory calculations and simulations of artificial surface origin tracers with the three-dimensional Chemical Lagrangian Model of the Stratosphere (CLaMS). The simulations show that air masses observed above Ny-Ålesund have been transported from surface sources in Asia into the Arctic lower stratosphere. Thus, the increased backscatter values during summer and autumn can be explained by transport of aerosol particles from the Asian summer monsoon into the Arctic lower stratosphere. Other/Unknown Material Arctic Arctic Ny Ålesund Ny-Ålesund Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Indian Ny-Ålesund |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The Asian summer monsoon is linked to deep convection over the Indian subcontinent and to an anticyclonic flow that extends from the upper troposphere into the lower stratosphere region. This allows both gas-phase aerosol precursors and aerosol particles from surface sources to reach the stratosphere. The horizontal transport out of the Asian monsoon anticyclone towards the extratropical lower stratosphere of the Northern Hemisphere is the focus of this study. We present an annual record of Lidar observations at AWIPEV in Ny-Ålesund. The data record is free from obvious layers like polar stratospheric clouds, volcanic eruptions or forest fires. Nevertheless, the lower stratosphere reveals an annual cycle with lower backscatter values in winter and spring and higher backscatter values in summer and autumn. The Lidar measurements have been linked to backward trajectory calculations and simulations of artificial surface origin tracers with the three-dimensional Chemical Lagrangian Model of the Stratosphere (CLaMS). The simulations show that air masses observed above Ny-Ålesund have been transported from surface sources in Asia into the Arctic lower stratosphere. Thus, the increased backscatter values during summer and autumn can be explained by transport of aerosol particles from the Asian summer monsoon into the Arctic lower stratosphere. |
format |
Other/Unknown Material |
author |
Tritscher, Ines Graßl, Sandra Ritter, Christoph Vogel, Bärbel |
spellingShingle |
Tritscher, Ines Graßl, Sandra Ritter, Christoph Vogel, Bärbel Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere |
author_facet |
Tritscher, Ines Graßl, Sandra Ritter, Christoph Vogel, Bärbel |
author_sort |
Tritscher, Ines |
title |
Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere |
title_short |
Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere |
title_full |
Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere |
title_fullStr |
Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere |
title_full_unstemmed |
Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere |
title_sort |
aerosol transport from the asian summer monsoon into the arctic lower stratosphere |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://epic.awi.de/id/eprint/58840/ https://epic.awi.de/id/eprint/58840/1/EGU24-8648-print.pdf https://doi.org/10.5194/egusphere-egu24-8648 https://hdl.handle.net/10013/epic.e9491bc3-f6d8-40d3-a760-6f145e8d9b14 |
geographic |
Arctic Indian Ny-Ålesund |
geographic_facet |
Arctic Indian Ny-Ålesund |
genre |
Arctic Arctic Ny Ålesund Ny-Ålesund |
genre_facet |
Arctic Arctic Ny Ålesund Ny-Ålesund |
op_source |
EPIC3Copernicus Publications |
op_relation |
https://epic.awi.de/id/eprint/58840/1/EGU24-8648-print.pdf Tritscher, I. , Graßl, S. orcid:0000-0001-8687-833X , Ritter, C. and Vogel, B. (2024) Aerosol Transport from the Asian Summer Monsoon into the Arctic Lower Stratosphere , [Other] doi:10.5194/egusphere-egu24-8648 <https://doi.org/10.5194/egusphere-egu24-8648> , hdl:10013/epic.e9491bc3-f6d8-40d3-a760-6f145e8d9b14 |
op_doi |
https://doi.org/10.5194/egusphere-egu24-8648 |
_version_ |
1802638963089866752 |