Factors affecting the subsurface aragonite undersaturation layer in the Pacific Arctic region

Ahra Mo; Dongseon Kim; Eun Jin Yang; Jinyoung Jung; Young Ho Ko; Sung Ho Kang; Kyoung Ho Cho; Keyhong Park; Tae Wook Kim

doi:10.1016/j.marpolbul.2022.114060

Factors affecting the subsurface aragonite undersaturation layer in the Pacific Arctic region

Ahra Mo, Dongseon Kim, Eun Jin Yang, Jinyoung Jung, Young Ho Ko, Sung Ho Kang, Kyoung Ho Cho, Keyhong Park, Tae Wook Kim

Division of Environmental Science and Ecological Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This study evaluated interannual variation in the subsurface aragonite undersaturation zone (Ω_Ar<1 layer) in the Pacific Arctic Ocean, using data from the 2016–2019 period. The upper boundary (DEP_Ω<1^UB) of the Ω_Ar<1 layer generally formed at a depth where the contribution of corrosive Pacific water was approximately 98 %. The intensity of the Beaufort Gyre associated with freshwater accumulation mainly determined interannual variation in DEP_Ω<1^UB, but the direction of its effect was opposite west and east of ~166°W. The lower boundary (DEP_Ω<1^LB) of the Ω_Ar<1 layer was generally found at a depth range where equal contributions of Pacific and Atlantic water were expected. An Atlantic-origin cold saline water intrusion event in 2017 caused by an anomalous atmospheric circulation pattern significantly lifted the DEP_Ω<1^LB, thus the thickness of the Ω_Ar<1 layer decreased.

Original language	English
Article number	114060
Journal	Marine Pollution Bulletin
Volume	183
DOIs	https://doi.org/10.1016/j.marpolbul.2022.114060
Publication status	Published - 2022 Oct

Keywords

Aragonite saturation
Arctic Ocean
Atmospheric circulation
Beaufort gyre
Ocean acidification
Pacific-Arctic regions

ASJC Scopus subject areas

Oceanography
Aquatic Science
Pollution

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.marpolbul.2022.114060

Cite this

@article{2dc8e363eee24e8da9bf8c0af4b357de,

title = "Factors affecting the subsurface aragonite undersaturation layer in the Pacific Arctic region",

abstract = "This study evaluated interannual variation in the subsurface aragonite undersaturation zone (ΩAr<1 layer) in the Pacific Arctic Ocean, using data from the 2016–2019 period. The upper boundary (DEPΩ<1UB) of the ΩAr<1 layer generally formed at a depth where the contribution of corrosive Pacific water was approximately 98 %. The intensity of the Beaufort Gyre associated with freshwater accumulation mainly determined interannual variation in DEPΩ<1UB, but the direction of its effect was opposite west and east of ~166°W. The lower boundary (DEPΩ<1LB) of the ΩAr<1 layer was generally found at a depth range where equal contributions of Pacific and Atlantic water were expected. An Atlantic-origin cold saline water intrusion event in 2017 caused by an anomalous atmospheric circulation pattern significantly lifted the DEPΩ<1LB, thus the thickness of the ΩAr<1 layer decreased.",

keywords = "Aragonite saturation, Arctic Ocean, Atmospheric circulation, Beaufort gyre, Ocean acidification, Pacific-Arctic regions",

author = "Ahra Mo and Dongseon Kim and Yang, {Eun Jin} and Jinyoung Jung and Ko, {Young Ho} and Kang, {Sung Ho} and Cho, {Kyoung Ho} and Keyhong Park and Kim, {Tae Wook}",

note = "Funding Information: This work was supported by the Polar Academic Program (PE179000) funded by the Korea Polar Research Institute , the project “{\textquoteleft}Korea-Arctic Ocean Warming and Response of Ecosystem (K-AWARE){\textquoteright}, KOPRI, 20210605” funded by the Ministry of Oceans and Fisheries , South Korea, and the Basic Science Research Program ( 2019R1A2C2089994 ) funded by the National Research Foundation of Korea . All data used in this study are available through the Korea Arctic Ocean-data System ( https://kaos.kopri.re.kr/ ). Funding Information: This work was supported by the Polar Academic Program (PE179000) funded by the Korea Polar Research Institute, the project “{\textquoteleft}Korea-Arctic Ocean Warming and Response of Ecosystem (K-AWARE){\textquoteright}, KOPRI, 20210605” funded by the Ministry of Oceans and Fisheries, South Korea, and the Basic Science Research Program (2019R1A2C2089994) funded by the National Research Foundation of Korea. All data used in this study are available through the Korea Arctic Ocean-data System (https://kaos.kopri.re.kr/). Publisher Copyright: {\textcopyright} 2022 Elsevier Ltd",

year = "2022",

month = oct,

doi = "10.1016/j.marpolbul.2022.114060",

language = "English",

volume = "183",

journal = "Marine Pollution Bulletin",

issn = "0025-326X",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Factors affecting the subsurface aragonite undersaturation layer in the Pacific Arctic region

AU - Mo, Ahra

AU - Kim, Dongseon

AU - Yang, Eun Jin

AU - Jung, Jinyoung

AU - Ko, Young Ho

AU - Kang, Sung Ho

AU - Cho, Kyoung Ho

AU - Park, Keyhong

AU - Kim, Tae Wook

N1 - Funding Information: This work was supported by the Polar Academic Program (PE179000) funded by the Korea Polar Research Institute , the project “‘Korea-Arctic Ocean Warming and Response of Ecosystem (K-AWARE)’, KOPRI, 20210605” funded by the Ministry of Oceans and Fisheries , South Korea, and the Basic Science Research Program ( 2019R1A2C2089994 ) funded by the National Research Foundation of Korea . All data used in this study are available through the Korea Arctic Ocean-data System ( https://kaos.kopri.re.kr/ ). Funding Information: This work was supported by the Polar Academic Program (PE179000) funded by the Korea Polar Research Institute, the project “‘Korea-Arctic Ocean Warming and Response of Ecosystem (K-AWARE)’, KOPRI, 20210605” funded by the Ministry of Oceans and Fisheries, South Korea, and the Basic Science Research Program (2019R1A2C2089994) funded by the National Research Foundation of Korea. All data used in this study are available through the Korea Arctic Ocean-data System (https://kaos.kopri.re.kr/). Publisher Copyright: © 2022 Elsevier Ltd

PY - 2022/10

Y1 - 2022/10

N2 - This study evaluated interannual variation in the subsurface aragonite undersaturation zone (ΩAr<1 layer) in the Pacific Arctic Ocean, using data from the 2016–2019 period. The upper boundary (DEPΩ<1UB) of the ΩAr<1 layer generally formed at a depth where the contribution of corrosive Pacific water was approximately 98 %. The intensity of the Beaufort Gyre associated with freshwater accumulation mainly determined interannual variation in DEPΩ<1UB, but the direction of its effect was opposite west and east of ~166°W. The lower boundary (DEPΩ<1LB) of the ΩAr<1 layer was generally found at a depth range where equal contributions of Pacific and Atlantic water were expected. An Atlantic-origin cold saline water intrusion event in 2017 caused by an anomalous atmospheric circulation pattern significantly lifted the DEPΩ<1LB, thus the thickness of the ΩAr<1 layer decreased.

AB - This study evaluated interannual variation in the subsurface aragonite undersaturation zone (ΩAr<1 layer) in the Pacific Arctic Ocean, using data from the 2016–2019 period. The upper boundary (DEPΩ<1UB) of the ΩAr<1 layer generally formed at a depth where the contribution of corrosive Pacific water was approximately 98 %. The intensity of the Beaufort Gyre associated with freshwater accumulation mainly determined interannual variation in DEPΩ<1UB, but the direction of its effect was opposite west and east of ~166°W. The lower boundary (DEPΩ<1LB) of the ΩAr<1 layer was generally found at a depth range where equal contributions of Pacific and Atlantic water were expected. An Atlantic-origin cold saline water intrusion event in 2017 caused by an anomalous atmospheric circulation pattern significantly lifted the DEPΩ<1LB, thus the thickness of the ΩAr<1 layer decreased.

KW - Aragonite saturation

KW - Arctic Ocean

KW - Atmospheric circulation

KW - Beaufort gyre

KW - Ocean acidification

KW - Pacific-Arctic regions

UR - http://www.scopus.com/inward/record.url?scp=85136264952&partnerID=8YFLogxK

U2 - 10.1016/j.marpolbul.2022.114060

DO - 10.1016/j.marpolbul.2022.114060

M3 - Article

C2 - 36027628

AN - SCOPUS:85136264952

SN - 0025-326X

VL - 183

JO - Marine Pollution Bulletin

JF - Marine Pollution Bulletin

M1 - 114060

ER -

Factors affecting the subsurface aragonite undersaturation layer in the Pacific Arctic region

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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