Comparison of carbonate parameters and air-sea CO2 flux in the southern Yellow Sea and East China Sea during spring and summer of 2011

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Comparison of carbonate parameters and air-sea CO2 flux in the southern Yellow Sea and East China Sea during spring and summer of 2011
	Qu, Baoxiao1,2 ; Song, Jinming1,2 ; Yuan, Huamao 1,2; Li, Xuegang 1,2; Li, Ning 1,2; Duan, Liqin 1,2
刊名	JOURNAL OF OCEANOGRAPHY
	2017-06-01
卷号	73 期号:3 页码:365-382
关键词	Carbon dioxide Air-sea gas exchange Continental shelf Southern Yellow Sea East China Sea Yangtze River
英文摘要	In this work, we examined the carbonate parameters, i.e. total alkalinity (TA), pH, and partial pressure of CO2 (pCO(2)), and the air-sea CO2 flux (FCO2) in the continental shelves of the southern Yellow Sea (SYS) and East China Sea (ECS), based on two field surveys conducted in April and August of 2011. Surface pCO(2) showed significant spatial variations, ranging from 246 to 686 A mu atm in spring (average +/- standard deviation = 379 +/- 95 A mu atm) and from 178 to 680 A mu atm in summer (384 +/- 114 A mu atm). During the spring cruise, the central SYS (pCO(2) < 240 A mu atm) and the Changjiang estuary (pCO(2) < 300 A mu atm) were under-saturated with CO2, while the southern SYS and the southwestern ECS were supersaturated (pCO(2) = 420-680 A mu atm). In summer, however, the CO2-supersaturated waters (pCO(2) = 380-680 A mu atm) occupied a relatively wide area, including the nearshore of the SYS and the Changjiang estuary, whereas pCO(2)-deficient water (pCO(2) = 220-380 A mu atm) was observed only at the offshore ECS. In general, the entire SYS and ECS area behaved as a sustained CO2 sink, with average FCO2 of -3.9 and -2.1 mmol m(-2) d(-1) in spring and summer, respectively. Phytoplankton production was the driving force for CO2 absorption, especially during the spring cruise. In addition, we found that typical water mixing processes and decomposition of terrestrial material were responsible for the release of CO2 in three turbidity maximum regions.
收录类别	SCI
语种	英语
WOS记录号	WOS:000401432100007
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.qdio.ac.cn/handle/337002/136851]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Qu, Baoxiao,Song, Jinming,Yuan, Huamao,et al. Comparison of carbonate parameters and air-sea CO2 flux in the southern Yellow Sea and East China Sea during spring and summer of 2011[J]. JOURNAL OF OCEANOGRAPHY,2017,73(3):365-382.
APA	Qu, Baoxiao,Song, Jinming,Yuan, Huamao,Li, Xuegang,Li, Ning,&Duan, Liqin.(2017).Comparison of carbonate parameters and air-sea CO2 flux in the southern Yellow Sea and East China Sea during spring and summer of 2011.JOURNAL OF OCEANOGRAPHY,73(3),365-382.
MLA	Qu, Baoxiao,et al."Comparison of carbonate parameters and air-sea CO2 flux in the southern Yellow Sea and East China Sea during spring and summer of 2011".JOURNAL OF OCEANOGRAPHY 73.3(2017):365-382.