Monthly and seasonal variations in the surface carbonate system and air–sea CO2 flux of the Yellow Sea SCIE SCOPUS

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Title
Monthly and seasonal variations in the surface carbonate system and air–sea CO2 flux of the Yellow Sea
Author(s)
Ko, Young Ho; Seok, Min-Woo; Jeong, Jin Yong; Noh, Jae Hoon; Jeong, Jong Min; Mo, Ahra; Kim, Tae-WookKi
KIOST Author(s)
Jeong, Jin Yong(정진용)Noh, Jae Hoon(노재훈)Jeong, Jong Min(정종민)
Alternative Author(s)
정진용; 노재훈; 정종민
Publication Year
2022-08
Abstract
Surface carbonate chemistry in the Yellow Sea was investigated based on discrete seawater samples collected from 2017 to 2020 at the Socheongcho Ocean Research Station (S-ORS; 37.423°N, 124.738°E). Records of carbon parameters, including seawater CO2 partial pressure (pCO2), revealed considerable seasonal variations, with amplitudes comparable to those observed across the western part of the Yellow Sea. The study site acted as a modest sink (−0.13 mol C m−2 yr−1) for atmospheric CO2. Biological processes (primary production and respiration) and physical conditions (temperature and degree of stratification) determined seawater pCO2, which fluctuated on an intraseasonal timescale between oversaturated and undersaturated with respect to atmospheric pCO2. Variation in pCO2 was significant in summer, depending on the biological carbon drawdown and tidal mixing-induced upwelling (increased pCO2 up to ~1000 μatm). The intraseasonal variability in seawater pCO2 may bias estimated air–sea CO2 fluxes, if measurements with a coarser (seasonal) time resolution are used. © 2022
ISSN
0025-326X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/43025
DOI
10.1016/j.marpolbul.2022.113822
Bibliographic Citation
Marine Pollution Bulletin, v.181, no.8, 2022
Publisher
Pergamon Press Ltd.
Keywords
Air–sea CO2 flux; Coastal ocean; pCO2; Tidal mixing; Yellow Sea
Type
Article
Language
English
Document Type
Article
Publisher
Pergamon Press Ltd.
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