Upwelling induced acidification and bloom induced deacidification over the southwestern part of the East Sea

Title
Upwelling induced acidification and bloom induced deacidification over the southwestern part of the East Sea
Author(s)
박영규; 서성봉; 김영일; 정창수; 홍기훈; 김동선
KIOST Author(s)
Park, Young Gyu(박영규)KIM, YOUNG IL(김영일)Chung, Chang Soo(정창수)Kim, Dong Seon(김동선)
Alternative Author(s)
박영규; 서성봉; 김영일; 정창수; 홍기훈; 김동선
Publication Year
2014-04-24
Abstract
Through idealized numerical experiments in which ocean circulation, carbon cycle and simple ecology are combined (Fennel et al 2006), we investigated the effect of coastal upwelling on the biogeochemical cycle over the southwestern part of the East Sea. As well-known when southwesterly winds parallel to the coast line for more than several days upwelling that brings cold and nutrient rich subsurface water to the surface occurs. Due to the upwelled nutrient phytoplankton bloom occurs in about a week after the upwelling has initiated. Initially the upwelling lowers the pH of the surface water, but as the bloom progresses the concentration of dissolved inorganic carbon (DIC) becomes lower due to photosynthesis and pH becomes higher to a value higher than that before the upwelling. This deacidification, however, is limited to the surface layer. These model results are consistent with observational results obtained over the study area in May 2011the East Sea. As well-known when southwesterly winds parallel to the coast line for more than several days upwelling that brings cold and nutrient rich subsurface water to the surface occurs. Due to the upwelled nutrient phytoplankton bloom occurs in about a week after the upwelling has initiated. Initially the upwelling lowers the pH of the surface water, but as the bloom progresses the concentration of dissolved inorganic carbon (DIC) becomes lower due to photosynthesis and pH becomes higher to a value higher than that before the upwelling. This deacidification, however, is limited to the surface layer. These model results are consistent with observational results obtained over the study area in May 2011
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/26326
Bibliographic Citation
9th International Scientific Symposium, pp.342, 2014
Publisher
IOC/WESTPAC
Type
Conference
Language
English
Publisher
IOC/WESTPAC
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