Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sites
Abstract Here, we quantify the flux of methane to the coastal Arctic and North Pacific Oceans via submarine groundwater discharge (SGD), by use of naturally occurring radium isotopes as groundwater tracers, combined with methane concentration measurements of coastal groundwater. Our findings indicat...
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crwiley:10.1002/lno.10118 2024-09-15T17:53:18+00:00 Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sites Lecher, Alanna L Kessler, John Sparrow, Katy Garcia‐Tigreros Kodovska, Fenix Dimova, Natasha Murray, Joseph Tulaczyk, Slawek Paytan, Adina ARC NSF 2015 http://dx.doi.org/10.1002/lno.10118 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flno.10118 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.10118 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 61, issue S1 ISSN 0024-3590 1939-5590 journal-article 2015 crwiley https://doi.org/10.1002/lno.10118 2024-08-01T04:19:00Z Abstract Here, we quantify the flux of methane to the coastal Arctic and North Pacific Oceans via submarine groundwater discharge (SGD), by use of naturally occurring radium isotopes as groundwater tracers, combined with methane concentration measurements of coastal groundwater. Our findings indicate the flux of methane through this process is much greater in the coastal North Pacific (35 ± 27 mg m −1 d −1 ) than the Arctic Ocean (4.1 ± 0.6 to 11.8 ± 3.9 mg m −1 d −1 ). The dominant controls on methane flux through SGD were not methane concentrations in the aquifer but rather the hydrologic characteristics of each site that mitigated or intensified the SGD water volume flux (120 ± 50 m 3 m −1 d −1 in the North Pacific compared to 12 ± 4 m 3 m −1 d −1 in the Arctic). Tidal pumping was observed to be an especially important control on SGD flux at the North Pacific site. Article in Journal/Newspaper Arctic Ocean Wiley Online Library Limnology and Oceanography 61 S1 S344 S355 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Here, we quantify the flux of methane to the coastal Arctic and North Pacific Oceans via submarine groundwater discharge (SGD), by use of naturally occurring radium isotopes as groundwater tracers, combined with methane concentration measurements of coastal groundwater. Our findings indicate the flux of methane through this process is much greater in the coastal North Pacific (35 ± 27 mg m −1 d −1 ) than the Arctic Ocean (4.1 ± 0.6 to 11.8 ± 3.9 mg m −1 d −1 ). The dominant controls on methane flux through SGD were not methane concentrations in the aquifer but rather the hydrologic characteristics of each site that mitigated or intensified the SGD water volume flux (120 ± 50 m 3 m −1 d −1 in the North Pacific compared to 12 ± 4 m 3 m −1 d −1 in the Arctic). Tidal pumping was observed to be an especially important control on SGD flux at the North Pacific site. |
author2 |
ARC NSF |
format |
Article in Journal/Newspaper |
author |
Lecher, Alanna L Kessler, John Sparrow, Katy Garcia‐Tigreros Kodovska, Fenix Dimova, Natasha Murray, Joseph Tulaczyk, Slawek Paytan, Adina |
spellingShingle |
Lecher, Alanna L Kessler, John Sparrow, Katy Garcia‐Tigreros Kodovska, Fenix Dimova, Natasha Murray, Joseph Tulaczyk, Slawek Paytan, Adina Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sites |
author_facet |
Lecher, Alanna L Kessler, John Sparrow, Katy Garcia‐Tigreros Kodovska, Fenix Dimova, Natasha Murray, Joseph Tulaczyk, Slawek Paytan, Adina |
author_sort |
Lecher, Alanna L |
title |
Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sites |
title_short |
Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sites |
title_full |
Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sites |
title_fullStr |
Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sites |
title_full_unstemmed |
Methane transport through submarine groundwater discharge to the North Pacific and Arctic Ocean at two Alaskan sites |
title_sort |
methane transport through submarine groundwater discharge to the north pacific and arctic ocean at two alaskan sites |
publisher |
Wiley |
publishDate |
2015 |
url |
http://dx.doi.org/10.1002/lno.10118 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flno.10118 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.10118 |
genre |
Arctic Ocean |
genre_facet |
Arctic Ocean |
op_source |
Limnology and Oceanography volume 61, issue S1 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/lno.10118 |
container_title |
Limnology and Oceanography |
container_volume |
61 |
container_issue |
S1 |
container_start_page |
S344 |
op_container_end_page |
S355 |
_version_ |
1810295344170270720 |