Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer
Vertical distributions of atmospheric dimethyl sulfide (DMS(g)) were sampled aboard the research aircraft Polar 6 near Lancaster Sound, Nunavut, Canada, in July 2014 and on pan-Arctic flights in April 2015 that started from Longyearbyen, Spitzbergen, and passed through Alert and Eureka, Nunavut, and...
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ftdoajarticles:oai:doaj.org/article:74cd63603dfc4389930815f562236a12 2023-05-15T14:29:00+02:00 Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer R. Ghahremaninezhad A.-L. Norman B. Croft R. V. Martin J. R. Pierce J. Burkart O. Rempillo H. Bozem D. Kunkel J. L. Thomas A. A. Aliabadi G. R. Wentworth M. Levasseur R. M. Staebler S. Sharma W. R. Leaitch 2017-07-01T00:00:00Z https://doi.org/10.5194/acp-17-8757-2017 https://doaj.org/article/74cd63603dfc4389930815f562236a12 EN eng Copernicus Publications https://www.atmos-chem-phys.net/17/8757/2017/acp-17-8757-2017.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-17-8757-2017 1680-7316 1680-7324 https://doaj.org/article/74cd63603dfc4389930815f562236a12 Atmospheric Chemistry and Physics, Vol 17, Pp 8757-8770 (2017) Physics QC1-999 Chemistry QD1-999 article 2017 ftdoajarticles https://doi.org/10.5194/acp-17-8757-2017 2022-12-31T00:31:32Z Vertical distributions of atmospheric dimethyl sulfide (DMS(g)) were sampled aboard the research aircraft Polar 6 near Lancaster Sound, Nunavut, Canada, in July 2014 and on pan-Arctic flights in April 2015 that started from Longyearbyen, Spitzbergen, and passed through Alert and Eureka, Nunavut, and Inuvik, Northwest Territories. Larger mean DMS(g) mixing ratios were present during April 2015 (campaign mean of 116 ± 8 pptv) compared to July 2014 (campaign mean of 20 ± 6 pptv). During July 2014, the largest mixing ratios were found near the surface over the ice edge and open water. DMS(g) mixing ratios decreased with altitude up to about 3 km. During April 2015, profiles of DMS(g) were more uniform with height and some profiles showed an increase with altitude. DMS reached as high as 100 pptv near 2500 m. Relative to the observation averages, GEOS-Chem ( www.geos-chem.org ) chemical transport model simulations were higher during July and lower during April. Based on the simulations, more than 90 % of the July DMS(g) below 2 km and more than 90 % of the April DMS(g) originated from Arctic seawater (north of 66° N). During April, 60 % of the DMS(g), between 500 and 3000 m originated from Arctic seawater. During July 2014, FLEXPART (FLEXible PARTicle dispersion model) simulations locate the sampled air mass over Baffin Bay and the Canadian Arctic Archipelago 4 days back from the observations. During April 2015, the locations of the air masses 4 days back from sampling were varied: Baffin Bay/Canadian Archipelago, the Arctic Ocean, Greenland and the Pacific Ocean. Our results highlight the role of open water below the flight as the source of DMS(g) during July 2014 and the influence of long-range transport (LRT) of DMS(g) from further afield in the Arctic above 2500 m during April 2015. Article in Journal/Newspaper Arctic Archipelago Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Canadian Archipelago Canadian Arctic Archipelago Eureka Greenland Inuvik Lancaster Sound Longyearbyen Northwest Territories Nunavut Spitzbergen Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Nunavut Northwest Territories Baffin Bay Canadian Arctic Archipelago Longyearbyen Canada Greenland Pacific Eureka ENVELOPE(-85.940,-85.940,79.990,79.990) Inuvik ENVELOPE(-133.610,-133.610,68.341,68.341) Lancaster Sound ENVELOPE(-83.999,-83.999,74.218,74.218) Atmospheric Chemistry and Physics 17 14 8757 8770 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Physics QC1-999 Chemistry QD1-999 |
spellingShingle |
Physics QC1-999 Chemistry QD1-999 R. Ghahremaninezhad A.-L. Norman B. Croft R. V. Martin J. R. Pierce J. Burkart O. Rempillo H. Bozem D. Kunkel J. L. Thomas A. A. Aliabadi G. R. Wentworth M. Levasseur R. M. Staebler S. Sharma W. R. Leaitch Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer |
topic_facet |
Physics QC1-999 Chemistry QD1-999 |
description |
Vertical distributions of atmospheric dimethyl sulfide (DMS(g)) were sampled aboard the research aircraft Polar 6 near Lancaster Sound, Nunavut, Canada, in July 2014 and on pan-Arctic flights in April 2015 that started from Longyearbyen, Spitzbergen, and passed through Alert and Eureka, Nunavut, and Inuvik, Northwest Territories. Larger mean DMS(g) mixing ratios were present during April 2015 (campaign mean of 116 ± 8 pptv) compared to July 2014 (campaign mean of 20 ± 6 pptv). During July 2014, the largest mixing ratios were found near the surface over the ice edge and open water. DMS(g) mixing ratios decreased with altitude up to about 3 km. During April 2015, profiles of DMS(g) were more uniform with height and some profiles showed an increase with altitude. DMS reached as high as 100 pptv near 2500 m. Relative to the observation averages, GEOS-Chem ( www.geos-chem.org ) chemical transport model simulations were higher during July and lower during April. Based on the simulations, more than 90 % of the July DMS(g) below 2 km and more than 90 % of the April DMS(g) originated from Arctic seawater (north of 66° N). During April, 60 % of the DMS(g), between 500 and 3000 m originated from Arctic seawater. During July 2014, FLEXPART (FLEXible PARTicle dispersion model) simulations locate the sampled air mass over Baffin Bay and the Canadian Arctic Archipelago 4 days back from the observations. During April 2015, the locations of the air masses 4 days back from sampling were varied: Baffin Bay/Canadian Archipelago, the Arctic Ocean, Greenland and the Pacific Ocean. Our results highlight the role of open water below the flight as the source of DMS(g) during July 2014 and the influence of long-range transport (LRT) of DMS(g) from further afield in the Arctic above 2500 m during April 2015. |
format |
Article in Journal/Newspaper |
author |
R. Ghahremaninezhad A.-L. Norman B. Croft R. V. Martin J. R. Pierce J. Burkart O. Rempillo H. Bozem D. Kunkel J. L. Thomas A. A. Aliabadi G. R. Wentworth M. Levasseur R. M. Staebler S. Sharma W. R. Leaitch |
author_facet |
R. Ghahremaninezhad A.-L. Norman B. Croft R. V. Martin J. R. Pierce J. Burkart O. Rempillo H. Bozem D. Kunkel J. L. Thomas A. A. Aliabadi G. R. Wentworth M. Levasseur R. M. Staebler S. Sharma W. R. Leaitch |
author_sort |
R. Ghahremaninezhad |
title |
Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer |
title_short |
Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer |
title_full |
Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer |
title_fullStr |
Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer |
title_full_unstemmed |
Boundary layer and free-tropospheric dimethyl sulfide in the Arctic spring and summer |
title_sort |
boundary layer and free-tropospheric dimethyl sulfide in the arctic spring and summer |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/acp-17-8757-2017 https://doaj.org/article/74cd63603dfc4389930815f562236a12 |
long_lat |
ENVELOPE(-85.940,-85.940,79.990,79.990) ENVELOPE(-133.610,-133.610,68.341,68.341) ENVELOPE(-83.999,-83.999,74.218,74.218) |
geographic |
Arctic Arctic Ocean Nunavut Northwest Territories Baffin Bay Canadian Arctic Archipelago Longyearbyen Canada Greenland Pacific Eureka Inuvik Lancaster Sound |
geographic_facet |
Arctic Arctic Ocean Nunavut Northwest Territories Baffin Bay Canadian Arctic Archipelago Longyearbyen Canada Greenland Pacific Eureka Inuvik Lancaster Sound |
genre |
Arctic Archipelago Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Canadian Archipelago Canadian Arctic Archipelago Eureka Greenland Inuvik Lancaster Sound Longyearbyen Northwest Territories Nunavut Spitzbergen |
genre_facet |
Arctic Archipelago Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Canadian Archipelago Canadian Arctic Archipelago Eureka Greenland Inuvik Lancaster Sound Longyearbyen Northwest Territories Nunavut Spitzbergen |
op_source |
Atmospheric Chemistry and Physics, Vol 17, Pp 8757-8770 (2017) |
op_relation |
https://www.atmos-chem-phys.net/17/8757/2017/acp-17-8757-2017.pdf https://doaj.org/toc/1680-7316 https://doaj.org/toc/1680-7324 doi:10.5194/acp-17-8757-2017 1680-7316 1680-7324 https://doaj.org/article/74cd63603dfc4389930815f562236a12 |
op_doi |
https://doi.org/10.5194/acp-17-8757-2017 |
container_title |
Atmospheric Chemistry and Physics |
container_volume |
17 |
container_issue |
14 |
container_start_page |
8757 |
op_container_end_page |
8770 |
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