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

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Title
Factors affecting the subsurface aragonite undersaturation layer in the Pacific Arctic region
Other Titles
북극해 아라고나이트 불포화 수층에 미치는 요인 규명
Authors
모아라
김동선
Yang, Eun Jin
Jung, Jinyoung
고영호
Kang, Sung-Ho
Cho, Kyoung-Ho
Park, Keyhong
김태욱
Keywords
Aragonite saturationArctic OceanAtmospheric circulationBeaufort gyreOcean acidificationPacific-Arctic regions
Issue Date
2022
Citation
모아라, et al. 2022. "Factors affecting the subsurface aragonite undersaturation layer in the Pacific Arctic region". MARINE POLLUTION BULLETIN, 183(1): 1-11.
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 (DEP^UB_ΩAr<1) of the Ω layer ΩAr<1 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 DEP^UB_ΩAr<1, but the direction of its effect was opposite west and east of ~166 W. The lower boundary (DEP^LB_ΩAr<1) 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 LB circulation pattern significantly lifted the DEP^LB_Ω<1, thus the thickness of the ΩAr<1 layer decreased.
URI
https://repository.kopri.re.kr/handle/201206/14062
DOI
http://dx.doi.org/10.1016/j.marpolbul.2022.114060
Type
Article
Station
Araon
Indexed
SCIE
Appears in Collections  
2022-2022, Korea-Arctic Ocean Warming and Response of Ecosystem (22-22) / Yang, Eun Jin (PM22040)
2017 Polar Academic Program (PE17900)
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