气候变化领域集成服务门户(CCPortal): Two Decades of Ocean Acidification in the Surface Waters of the Beaufort Gyre; Arctic Ocean: Effects of Sea Ice Melt and Retreat From 1997

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DOI	10.1029/2019GL086421
	Two Decades of Ocean Acidification in the Surface Waters of the Beaufort Gyre; Arctic Ocean: Effects of Sea Ice Melt and Retreat From 1997–2016
	Zhang Y.; Yamamoto-Kawai M.; Williams W.J.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	Anthropogenic CO2 uptake drives ocean acidification and so decreases the calcium carbonate (CaCO3) saturation state (Ω). Undersaturation of surface water with respect to aragonite-type CaCO3 was first reported for 2008 in the Canada Basin, preceding other open ocean basins. This study reveals interannual variation of Ω in the surface Canada Basin before and after 2008. A rapid decrease of Ω occurred during 2003–2007 at a rate of −0.09 year−1, 10 times faster than other open oceans. This was due to melting and retreat of sea ice, which diluted surface water and enhanced air-sea CO2 exchange. After 2007, Ω did not further decrease, despite increasing atmospheric CO2 and continued sea ice retreat. A weakened dilution effect from sea ice melt and stabilized air-sea CO2 disequilibrium state is the main reason for this stabilization of Ω. Aragonite undersaturation has been observed for the last 11 years, and aragonite-shelled organisms may be threatened. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Acidification; Calcite; Calcium carbonate; Carbon dioxide; Carbonate minerals; Oceanography; Sea ice; Arctic ocean; Beaufort Gyre; CO2 exchange; Ice melts; Ocean acidifications; Undersaturation; Surface waters; air-sea interaction; annual variation; aragonite; carbon dioxide; carbon flux; decadal variation; dilution; gyre; ocean acidification; sea ice; snowmelt; surface water; Arctic Ocean; Beaufort Sea; Canada Basin
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170769
作者单位	Graduate School of Marine Science and Technology, Tokyo University of Marine Science and Technology, Tokyo, Japan; Department of Ocean Sciences, Tokyo University of Marine Science and Technology, Tokyo, Japan; Department of Fisheries and Oceans Canada, Institute of Ocean Sciences, Sidney, BC, Canada
推荐引用方式 GB/T 7714	Zhang Y.,Yamamoto-Kawai M.,Williams W.J.. Two Decades of Ocean Acidification in the Surface Waters of the Beaufort Gyre; Arctic Ocean: Effects of Sea Ice Melt and Retreat From 1997–2016[J],2020,47(3).
APA	Zhang Y.,Yamamoto-Kawai M.,&Williams W.J..(2020).Two Decades of Ocean Acidification in the Surface Waters of the Beaufort Gyre; Arctic Ocean: Effects of Sea Ice Melt and Retreat From 1997–2016.Geophysical Research Letters,47(3).
MLA	Zhang Y.,et al."Two Decades of Ocean Acidification in the Surface Waters of the Beaufort Gyre; Arctic Ocean: Effects of Sea Ice Melt and Retreat From 1997–2016".Geophysical Research Letters 47.3(2020).