Aragonite undersaturation in Gwangyang Bay, South Korea: Effects of fresh water input
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Title
- Aragonite undersaturation in Gwangyang Bay, South Korea: Effects of fresh water input
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Author(s)
- Kim, Dongseon; Yang, Eun-Jin; Baek, Seung Ho; Kim, Kyung-Hee; Jeong, Jin-Hyun; Kim, Young-Ok
- KIOST Author(s)
- Kim, Dong Seon(김동선); Baek, Seung Ho(백승호); Kim, Young Ok(김영옥)
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Alternative Author(s)
- 김동선; 양은진; 백승호; 김경희; 정진현; 김영옥
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Publication Year
- 2014-09
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Abstract
- Dissolved inorganic carbon (DIC) and alkalinity were precisely measured for surface and bottom waters in Gwangyang Bay, Korea, during the four seasons to assess seasonal variations of aragonite saturation state (Omega(arag)). Both the surface and bottom waters were undersaturated with respect to aragonite during summer but were supersaturated during the other seasons. The summertime undersaturation of the surface waters with respect to aragonite may have been a result of the dilution effect caused by higher seasonal river runoff. In the bottom waters, the average DIC concentration increased by 40.6 mu mol kg((TM) 1) from spring to summer, while the average alkalinity decreased by 74.7 mu eq kg((TM) 1). As a result, the alkalinity/DIC ratio decreased from 1.07 in spring to 1.01 in summer and pH also decreased from 7.91 to 7.48, which resulted in the summertime undersaturation of the bottom waters.
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ISSN
- 1738-5261
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2746
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DOI
- 10.1007/s12601-014-0022-9
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Bibliographic Citation
- OCEAN SCIENCE JOURNAL, v.49, no.3, pp.223 - 230, 2014
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Publisher
- 한국해양과학기술원
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Keywords
- aragonite; bay; pH; alkalinity; acidification
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Type
- Article
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Language
- English
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Document Type
- Article
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