Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan
Physico-chemical properties in the brine and under-ice water were measured in Saroma-ko Lagoon on the northeastern coast of Hokkaido, Japan, which is connected to the Sea of Okhotsk, during the period from mid-February through mid-March 2006. The brine within brine channels of the sea ice was collec...
Published in: | Estuarine, Coastal and Shelf Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | http://hdl.handle.net/2115/70576 https://doi.org/10.1016/j.ecss.2008.10.012 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/70576 2023-05-15T18:16:21+02:00 Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan Nomura, Daiki Takatsuka, Toru Ishikawa, Masao Kawamura, Toshiyuki Shirasawa, Kunio Yoshikawa-Inoue, Hisayuki http://hdl.handle.net/2115/70576 https://doi.org/10.1016/j.ecss.2008.10.012 eng eng Elsevier http://hdl.handle.net/2115/70576 Estuarine, Coastal and Shelf Science, 81(2): 201-209 http://dx.doi.org/10.1016/j.ecss.2008.10.012 © 2009. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ https://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND sea ice river water plume biogeochemistry coastal oceanography Sea of Okhotsk Saroma-ko Lagoon 660 article (author version) fthokunivhus https://doi.org/10.1016/j.ecss.2008.10.012 2022-11-18T01:04:56Z Physico-chemical properties in the brine and under-ice water were measured in Saroma-ko Lagoon on the northeastern coast of Hokkaido, Japan, which is connected to the Sea of Okhotsk, during the period from mid-February through mid-March 2006. The brine within brine channels of the sea ice was collected with a new sampling method examined in this study. Salinity, dissolved inorganic carbon (DIC), total alkalinity (TA), dissolved oxygen (DO), nutrients and oxygen isotopic ratio (δ18O) contained in the brine within brine channels of the sea ice and in the under-ice water varied largely in both time and space during the ice melt period, when discharge from Saromabetsu River located on the southeast of the lagoon increased markedly due to the onset of snow melting. The under-ice plume expands as far as 4.5 km from the river mouth at mid-March 2006, transporting chemical components supplied from the river into the lagoon. The under-ice river water was likely transported into the sea ice through well-developed brine channels in the sea ice due to upward flushing of water through brine channels occurred by loading of snowfalls deposited over the sea ice. These results suggest that the river water plume plays an important role in supplying chemical components into the sea ice, which may be a key process influencing the biogeochemical cycle in the seasonally ice-covered Saroma-ko Lagoon. Article in Journal/Newspaper Sea ice Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Okhotsk Estuarine, Coastal and Shelf Science 81 2 201 209 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
sea ice river water plume biogeochemistry coastal oceanography Sea of Okhotsk Saroma-ko Lagoon 660 |
spellingShingle |
sea ice river water plume biogeochemistry coastal oceanography Sea of Okhotsk Saroma-ko Lagoon 660 Nomura, Daiki Takatsuka, Toru Ishikawa, Masao Kawamura, Toshiyuki Shirasawa, Kunio Yoshikawa-Inoue, Hisayuki Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan |
topic_facet |
sea ice river water plume biogeochemistry coastal oceanography Sea of Okhotsk Saroma-ko Lagoon 660 |
description |
Physico-chemical properties in the brine and under-ice water were measured in Saroma-ko Lagoon on the northeastern coast of Hokkaido, Japan, which is connected to the Sea of Okhotsk, during the period from mid-February through mid-March 2006. The brine within brine channels of the sea ice was collected with a new sampling method examined in this study. Salinity, dissolved inorganic carbon (DIC), total alkalinity (TA), dissolved oxygen (DO), nutrients and oxygen isotopic ratio (δ18O) contained in the brine within brine channels of the sea ice and in the under-ice water varied largely in both time and space during the ice melt period, when discharge from Saromabetsu River located on the southeast of the lagoon increased markedly due to the onset of snow melting. The under-ice plume expands as far as 4.5 km from the river mouth at mid-March 2006, transporting chemical components supplied from the river into the lagoon. The under-ice river water was likely transported into the sea ice through well-developed brine channels in the sea ice due to upward flushing of water through brine channels occurred by loading of snowfalls deposited over the sea ice. These results suggest that the river water plume plays an important role in supplying chemical components into the sea ice, which may be a key process influencing the biogeochemical cycle in the seasonally ice-covered Saroma-ko Lagoon. |
format |
Article in Journal/Newspaper |
author |
Nomura, Daiki Takatsuka, Toru Ishikawa, Masao Kawamura, Toshiyuki Shirasawa, Kunio Yoshikawa-Inoue, Hisayuki |
author_facet |
Nomura, Daiki Takatsuka, Toru Ishikawa, Masao Kawamura, Toshiyuki Shirasawa, Kunio Yoshikawa-Inoue, Hisayuki |
author_sort |
Nomura, Daiki |
title |
Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan |
title_short |
Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan |
title_full |
Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan |
title_fullStr |
Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan |
title_full_unstemmed |
Transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered Saroma-ko Lagoon, Hokkaido, Japan |
title_sort |
transport of chemical components in sea ice and under-ice water during melting in the seasonally ice-covered saroma-ko lagoon, hokkaido, japan |
publisher |
Elsevier |
url |
http://hdl.handle.net/2115/70576 https://doi.org/10.1016/j.ecss.2008.10.012 |
geographic |
Okhotsk |
geographic_facet |
Okhotsk |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
http://hdl.handle.net/2115/70576 Estuarine, Coastal and Shelf Science, 81(2): 201-209 http://dx.doi.org/10.1016/j.ecss.2008.10.012 |
op_rights |
© 2009. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.ecss.2008.10.012 |
container_title |
Estuarine, Coastal and Shelf Science |
container_volume |
81 |
container_issue |
2 |
container_start_page |
201 |
op_container_end_page |
209 |
_version_ |
1766189917927374848 |