Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea
The role of sea ice melting on the air-sea CO2 flux was investigated at two ice camps in the East Siberian Sea of the Arctic Ocean. On average, sea ice samples from the two ice camps had a total alkalinity (TA) of ∼108 and ∼31 μmol kg–1 and a corresponding salinity of 1.39 and 0.36, respectively. A...
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Online Access: | https://doi.org/10.3389/fmars.2022.766810 https://doaj.org/article/48044fad250340adb308b65483e75da9 |
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ftdoajarticles:oai:doaj.org/article:48044fad250340adb308b65483e75da9 2023-05-15T14:58:46+02:00 Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea Ahra Mo Eun Jin Yang Sung-Ho Kang Dongseon Kim Kitack Lee Young Ho Ko Kitae Kim Tae-Wook Kim 2022-02-01T00:00:00Z https://doi.org/10.3389/fmars.2022.766810 https://doaj.org/article/48044fad250340adb308b65483e75da9 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2022.766810/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.766810 https://doaj.org/article/48044fad250340adb308b65483e75da9 Frontiers in Marine Science, Vol 9 (2022) Arctic Ocean East Siberian Sea sea ice melting ikaite total alkalinity Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmars.2022.766810 2022-12-31T16:32:32Z The role of sea ice melting on the air-sea CO2 flux was investigated at two ice camps in the East Siberian Sea of the Arctic Ocean. On average, sea ice samples from the two ice camps had a total alkalinity (TA) of ∼108 and ∼31 μmol kg–1 and a corresponding salinity of 1.39 and 0.36, respectively. A portion (18–23% as an average) of these sea ice TA values was estimated to exist in the sea ice with zero salinity, which indicates the excess TA was likely attributed to chemical (CaCO3 formation and dissolution) and biological processes in the sea ice. The dilution by sea ice melting could increase the oceanic CO2 uptake to 11–12 mmol m–2 d–1 over the next 21 days if the mixed layer depth and sea ice thickness were assumed to be 18.5 and 1.5 m, respectively. This role can be further enhanced by adding TA (including excess TA) from sea ice melting, but a simultaneous release of dissolved inorganic carbon (DIC) counteracts the effect of TA supply. In our study region, the additional impact of sea ice melting with close to unity TA:DIC ratio on air-sea CO2 exchange was not significant. Article in Journal/Newspaper Arctic Arctic Ocean East Siberian Sea Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean East Siberian Sea ENVELOPE(166.000,166.000,74.000,74.000) Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic Ocean East Siberian Sea sea ice melting ikaite total alkalinity Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
Arctic Ocean East Siberian Sea sea ice melting ikaite total alkalinity Science Q General. Including nature conservation geographical distribution QH1-199.5 Ahra Mo Eun Jin Yang Sung-Ho Kang Dongseon Kim Kitack Lee Young Ho Ko Kitae Kim Tae-Wook Kim Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea |
topic_facet |
Arctic Ocean East Siberian Sea sea ice melting ikaite total alkalinity Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
The role of sea ice melting on the air-sea CO2 flux was investigated at two ice camps in the East Siberian Sea of the Arctic Ocean. On average, sea ice samples from the two ice camps had a total alkalinity (TA) of ∼108 and ∼31 μmol kg–1 and a corresponding salinity of 1.39 and 0.36, respectively. A portion (18–23% as an average) of these sea ice TA values was estimated to exist in the sea ice with zero salinity, which indicates the excess TA was likely attributed to chemical (CaCO3 formation and dissolution) and biological processes in the sea ice. The dilution by sea ice melting could increase the oceanic CO2 uptake to 11–12 mmol m–2 d–1 over the next 21 days if the mixed layer depth and sea ice thickness were assumed to be 18.5 and 1.5 m, respectively. This role can be further enhanced by adding TA (including excess TA) from sea ice melting, but a simultaneous release of dissolved inorganic carbon (DIC) counteracts the effect of TA supply. In our study region, the additional impact of sea ice melting with close to unity TA:DIC ratio on air-sea CO2 exchange was not significant. |
format |
Article in Journal/Newspaper |
author |
Ahra Mo Eun Jin Yang Sung-Ho Kang Dongseon Kim Kitack Lee Young Ho Ko Kitae Kim Tae-Wook Kim |
author_facet |
Ahra Mo Eun Jin Yang Sung-Ho Kang Dongseon Kim Kitack Lee Young Ho Ko Kitae Kim Tae-Wook Kim |
author_sort |
Ahra Mo |
title |
Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea |
title_short |
Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea |
title_full |
Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea |
title_fullStr |
Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea |
title_full_unstemmed |
Impact of Sea Ice Melting on Summer Air-Sea CO2 Exchange in the East Siberian Sea |
title_sort |
impact of sea ice melting on summer air-sea co2 exchange in the east siberian sea |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.766810 https://doaj.org/article/48044fad250340adb308b65483e75da9 |
long_lat |
ENVELOPE(166.000,166.000,74.000,74.000) |
geographic |
Arctic Arctic Ocean East Siberian Sea |
geographic_facet |
Arctic Arctic Ocean East Siberian Sea |
genre |
Arctic Arctic Ocean East Siberian Sea Sea ice |
genre_facet |
Arctic Arctic Ocean East Siberian Sea Sea ice |
op_source |
Frontiers in Marine Science, Vol 9 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2022.766810/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.766810 https://doaj.org/article/48044fad250340adb308b65483e75da9 |
op_doi |
https://doi.org/10.3389/fmars.2022.766810 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
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1766330893236961280 |