Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea
It has been suggested that increasing terrestrial water discharge to the Arctic Ocean may partly occur as submarine groundwater discharge (SGD), yet there are no direct observations of this phenomenon in the Arctic shelf seas. This study tests the hypothesis that SGD does exist in the Siberian Arcti...
Published in: | The Cryosphere |
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fttomskpuniv:oai:earchive.tpu.ru:11683/65325 2023-05-15T14:26:12+02:00 Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea Charkin, Aleksandr Nikolaevich Van Der Loeff, Michiel Rutgers Shakhova, Nataljya Evgenjevna Gustafsson, Orjan Dudarev, Oleg Viktorovich Cherepnev, Maksim Sviatoslavovich Salyuk, Anatoly Nazarovich Koshurnikov, Andrey Viktorovich Spivak, Eduard Gunar, Aleksey Yu. Ruban, Aleksey Sergeevich Semiletov, Igor Petrovich 2017 application/pdf http://earchive.tpu.ru/handle/11683/65325 https://doi.org/10.5194/tc-11-2305-2017 en eng Copernicus Group Cryosphere. 2017. Vol. 11, iss. 5 Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea / A. N. Charkin [et al.] // Cryosphere. — 2017. — Vol. 11, iss. 5. — [P. 2305-2317]. http://earchive.tpu.ru/handle/11683/65325 doi:10.5194/tc-11-2305-2017 info:eu-repo/semantics/openAccess Attribution-NonCommercial 4.0 International https://creativecommons.org/licenses/by-nc/4.0/ CC-BY-NC Cryosphere Арктика исследование Северный Ледовитый океан наземные воды сброс Article info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 fttomskpuniv https://doi.org/10.5194/tc-11-2305-2017 2021-05-18T16:28:21Z It has been suggested that increasing terrestrial water discharge to the Arctic Ocean may partly occur as submarine groundwater discharge (SGD), yet there are no direct observations of this phenomenon in the Arctic shelf seas. This study tests the hypothesis that SGD does exist in the Siberian Arctic Shelf seas, but its dynamics may be largely controlled by complicated geocryological conditions such as permafrost. The field-observational approach in the southeastern Laptev Sea used a combination of hydrological (temperature, salinity), geological (bottom sediment drilling, geoelectric surveys), and geochemical (224Ra, 223Ra, 228Ra, and 226Ra) techniques. Active SGD was documented in the vicinity of the Lena River delta with two different operational modes. In the first system, groundwater discharges through tectonogenic permafrost talik zones was registered in both winter and summer. The second SGD mechanism was cryogenic squeezing out of brine and water-soluble salts detected on the periphery of ice hummocks in the winter. The proposed mechanisms of groundwater transport and discharge in the Arctic land-shelf system is elaborated. Through salinity vs. 224Ra and 224Ra / 223Ra diagrams, the three main SGD-influenced water masses were identified and their end-member composition was constrained. Based on simple mass-balance box models, discharge rates at sites in the submarine permafrost talik zone were 1. 7 × 106 m3 d−1 or 19.9 m3 s−1, which is much higher than the April discharge of the Yana River. Further studies should apply these techniques on a broader scale with the objective of elucidating the relative importance of the SGD transport vector relative to surface freshwater discharge for both water balance and aquatic components such as dissolved organic carbon, carbon dioxide, methane, and nutrients. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Ice laptev Laptev Sea lena river permafrost Арктика Tomsk Polytechnic University (TPU): Electronic Archive Arctic Arctic Ocean Laptev Sea Talik ENVELOPE(146.601,146.601,59.667,59.667) Khaya ENVELOPE(135.167,135.167,60.567,60.567) Buor-Khaya ENVELOPE(127.803,127.803,72.287,72.287) Yana River ENVELOPE(134.625,134.625,67.662,67.662) The Cryosphere 11 5 2305 2327 |
institution |
Open Polar |
collection |
Tomsk Polytechnic University (TPU): Electronic Archive |
op_collection_id |
fttomskpuniv |
language |
English |
topic |
Арктика исследование Северный Ледовитый океан наземные воды сброс |
spellingShingle |
Арктика исследование Северный Ледовитый океан наземные воды сброс Charkin, Aleksandr Nikolaevich Van Der Loeff, Michiel Rutgers Shakhova, Nataljya Evgenjevna Gustafsson, Orjan Dudarev, Oleg Viktorovich Cherepnev, Maksim Sviatoslavovich Salyuk, Anatoly Nazarovich Koshurnikov, Andrey Viktorovich Spivak, Eduard Gunar, Aleksey Yu. Ruban, Aleksey Sergeevich Semiletov, Igor Petrovich Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea |
topic_facet |
Арктика исследование Северный Ледовитый океан наземные воды сброс |
description |
It has been suggested that increasing terrestrial water discharge to the Arctic Ocean may partly occur as submarine groundwater discharge (SGD), yet there are no direct observations of this phenomenon in the Arctic shelf seas. This study tests the hypothesis that SGD does exist in the Siberian Arctic Shelf seas, but its dynamics may be largely controlled by complicated geocryological conditions such as permafrost. The field-observational approach in the southeastern Laptev Sea used a combination of hydrological (temperature, salinity), geological (bottom sediment drilling, geoelectric surveys), and geochemical (224Ra, 223Ra, 228Ra, and 226Ra) techniques. Active SGD was documented in the vicinity of the Lena River delta with two different operational modes. In the first system, groundwater discharges through tectonogenic permafrost talik zones was registered in both winter and summer. The second SGD mechanism was cryogenic squeezing out of brine and water-soluble salts detected on the periphery of ice hummocks in the winter. The proposed mechanisms of groundwater transport and discharge in the Arctic land-shelf system is elaborated. Through salinity vs. 224Ra and 224Ra / 223Ra diagrams, the three main SGD-influenced water masses were identified and their end-member composition was constrained. Based on simple mass-balance box models, discharge rates at sites in the submarine permafrost talik zone were 1. 7 × 106 m3 d−1 or 19.9 m3 s−1, which is much higher than the April discharge of the Yana River. Further studies should apply these techniques on a broader scale with the objective of elucidating the relative importance of the SGD transport vector relative to surface freshwater discharge for both water balance and aquatic components such as dissolved organic carbon, carbon dioxide, methane, and nutrients. |
format |
Article in Journal/Newspaper |
author |
Charkin, Aleksandr Nikolaevich Van Der Loeff, Michiel Rutgers Shakhova, Nataljya Evgenjevna Gustafsson, Orjan Dudarev, Oleg Viktorovich Cherepnev, Maksim Sviatoslavovich Salyuk, Anatoly Nazarovich Koshurnikov, Andrey Viktorovich Spivak, Eduard Gunar, Aleksey Yu. Ruban, Aleksey Sergeevich Semiletov, Igor Petrovich |
author_facet |
Charkin, Aleksandr Nikolaevich Van Der Loeff, Michiel Rutgers Shakhova, Nataljya Evgenjevna Gustafsson, Orjan Dudarev, Oleg Viktorovich Cherepnev, Maksim Sviatoslavovich Salyuk, Anatoly Nazarovich Koshurnikov, Andrey Viktorovich Spivak, Eduard Gunar, Aleksey Yu. Ruban, Aleksey Sergeevich Semiletov, Igor Petrovich |
author_sort |
Charkin, Aleksandr Nikolaevich |
title |
Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea |
title_short |
Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea |
title_full |
Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea |
title_fullStr |
Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea |
title_full_unstemmed |
Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea |
title_sort |
discovery and characterization of submarine groundwater discharge in the siberian arctic seas: a case study in the buor-khaya gulf, laptev sea |
publisher |
Copernicus Group |
publishDate |
2017 |
url |
http://earchive.tpu.ru/handle/11683/65325 https://doi.org/10.5194/tc-11-2305-2017 |
long_lat |
ENVELOPE(146.601,146.601,59.667,59.667) ENVELOPE(135.167,135.167,60.567,60.567) ENVELOPE(127.803,127.803,72.287,72.287) ENVELOPE(134.625,134.625,67.662,67.662) |
geographic |
Arctic Arctic Ocean Laptev Sea Talik Khaya Buor-Khaya Yana River |
geographic_facet |
Arctic Arctic Ocean Laptev Sea Talik Khaya Buor-Khaya Yana River |
genre |
Arctic Arctic Arctic Ocean Ice laptev Laptev Sea lena river permafrost Арктика |
genre_facet |
Arctic Arctic Arctic Ocean Ice laptev Laptev Sea lena river permafrost Арктика |
op_source |
Cryosphere |
op_relation |
Cryosphere. 2017. Vol. 11, iss. 5 Discovery and characterization of submarine groundwater discharge in the Siberian Arctic seas: a case study in the Buor-Khaya Gulf, Laptev Sea / A. N. Charkin [et al.] // Cryosphere. — 2017. — Vol. 11, iss. 5. — [P. 2305-2317]. http://earchive.tpu.ru/handle/11683/65325 doi:10.5194/tc-11-2305-2017 |
op_rights |
info:eu-repo/semantics/openAccess Attribution-NonCommercial 4.0 International https://creativecommons.org/licenses/by-nc/4.0/ |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.5194/tc-11-2305-2017 |
container_title |
The Cryosphere |
container_volume |
11 |
container_issue |
5 |
container_start_page |
2305 |
op_container_end_page |
2327 |
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1766298674970755072 |