Impacts of Asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in Mount Wrangell ice core, Alaska
The relation of interannual connection between Asian dust outbreaks and stratosphere-to-troposphere transport (STT) in spring was suggested by the dust and tritium variations in the Mount Wrangell ice core, Alaska in Yasunari et al. (2007). However, these impacts on the ice core site in each event s...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/38628 2023-05-15T16:38:27+02:00 Impacts of Asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in Mount Wrangell ice core, Alaska Yasunari, Teppei J. Yamazaki, Koji http://hdl.handle.net/2115/38628 https://doi.org/10.1016/j.atmosenv.2009.02.025 eng eng Elsevier Ltd. http://hdl.handle.net/2115/38628 Atmospheric Environment, 43(16): 2582-2590 http://dx.doi.org/10.1016/j.atmosenv.2009.02.025 Asian dust Stratosphere-to-troposphere transport (STT) Tritium Ice core Climate 450 article (author version) fthokunivhus https://doi.org/10.1016/j.atmosenv.2009.02.025 2022-11-18T01:01:48Z The relation of interannual connection between Asian dust outbreaks and stratosphere-to-troposphere transport (STT) in spring was suggested by the dust and tritium variations in the Mount Wrangell ice core, Alaska in Yasunari et al. (2007). However, these impacts on the ice core site in each event scale have not been investigated. Hence, the present paper focuses on the material transport and deposition processes for further understanding these impacts oil the ice core. The variations in dust and tritium concentrations in spring in an ice core taken at Mt. Wrangell, Alaska are explained by meteorological analysis and simulation of trajectories associated with Asian dust outbreaks and STT. Material transport and deposition at Mt. Wrangell are examined in two contrasting years (2001 and 2002). Dust and tritium concentrations both reached peak values in the early spring of 2002, while the dust peak occurred in early spring and the tritium peak occurred in late spring in 2001. Six severe East Asian transpacific dust storms over this period are modeled by forward trajectory and meteorologically analyzed. It is found that 5 of 6 events contributed to the ice core record in Alaska. Stratospheric air is also transported to the ice core site in most cases. Tritium deposition is found to have been suppressed in the cases of the 2001 dust Storms due to lack of snowfall at appropriate times. Taken the detailed transport and deposition processes after the severe dust storms with atmospheric circulations into account, we can well explain spring dust and tritium variations in the Mount Wrangell ice core. Article in Journal/Newspaper ice core Alaska Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Atmospheric Environment 43 16 2582 2590 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Asian dust Stratosphere-to-troposphere transport (STT) Tritium Ice core Climate 450 |
spellingShingle |
Asian dust Stratosphere-to-troposphere transport (STT) Tritium Ice core Climate 450 Yasunari, Teppei J. Yamazaki, Koji Impacts of Asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in Mount Wrangell ice core, Alaska |
topic_facet |
Asian dust Stratosphere-to-troposphere transport (STT) Tritium Ice core Climate 450 |
description |
The relation of interannual connection between Asian dust outbreaks and stratosphere-to-troposphere transport (STT) in spring was suggested by the dust and tritium variations in the Mount Wrangell ice core, Alaska in Yasunari et al. (2007). However, these impacts on the ice core site in each event scale have not been investigated. Hence, the present paper focuses on the material transport and deposition processes for further understanding these impacts oil the ice core. The variations in dust and tritium concentrations in spring in an ice core taken at Mt. Wrangell, Alaska are explained by meteorological analysis and simulation of trajectories associated with Asian dust outbreaks and STT. Material transport and deposition at Mt. Wrangell are examined in two contrasting years (2001 and 2002). Dust and tritium concentrations both reached peak values in the early spring of 2002, while the dust peak occurred in early spring and the tritium peak occurred in late spring in 2001. Six severe East Asian transpacific dust storms over this period are modeled by forward trajectory and meteorologically analyzed. It is found that 5 of 6 events contributed to the ice core record in Alaska. Stratospheric air is also transported to the ice core site in most cases. Tritium deposition is found to have been suppressed in the cases of the 2001 dust Storms due to lack of snowfall at appropriate times. Taken the detailed transport and deposition processes after the severe dust storms with atmospheric circulations into account, we can well explain spring dust and tritium variations in the Mount Wrangell ice core. |
format |
Article in Journal/Newspaper |
author |
Yasunari, Teppei J. Yamazaki, Koji |
author_facet |
Yasunari, Teppei J. Yamazaki, Koji |
author_sort |
Yasunari, Teppei J. |
title |
Impacts of Asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in Mount Wrangell ice core, Alaska |
title_short |
Impacts of Asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in Mount Wrangell ice core, Alaska |
title_full |
Impacts of Asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in Mount Wrangell ice core, Alaska |
title_fullStr |
Impacts of Asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in Mount Wrangell ice core, Alaska |
title_full_unstemmed |
Impacts of Asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in Mount Wrangell ice core, Alaska |
title_sort |
impacts of asian dust storm associated with the stratosphere-to-troposphere transport in the spring of 2001 and 2002 on dust and tritium variations in mount wrangell ice core, alaska |
publisher |
Elsevier Ltd. |
url |
http://hdl.handle.net/2115/38628 https://doi.org/10.1016/j.atmosenv.2009.02.025 |
genre |
ice core Alaska |
genre_facet |
ice core Alaska |
op_relation |
http://hdl.handle.net/2115/38628 Atmospheric Environment, 43(16): 2582-2590 http://dx.doi.org/10.1016/j.atmosenv.2009.02.025 |
op_doi |
https://doi.org/10.1016/j.atmosenv.2009.02.025 |
container_title |
Atmospheric Environment |
container_volume |
43 |
container_issue |
16 |
container_start_page |
2582 |
op_container_end_page |
2590 |
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1766028715132715008 |