Climate change drives rapid decadal acidification in the Arctic Ocean from 1994 to 2020-Reference-Cited by-同舟云学术

Climate change drives rapid decadal acidification in the Arctic Ocean from 1994 to 2020

Published:2022-09-30 Issue:6614 Volume:377 Page:1544-1550
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Qi Di¹²³^ORCID,Ouyang Zhangxian⁴^ORCID,Chen Liqi¹²^ORCID,Wu Yingxu¹^ORCID,Lei Ruibo⁵^ORCID,Chen Baoshan⁴^ORCID,Feely Richard A.⁶^ORCID,Anderson Leif G.⁷^ORCID,Zhong Wenli⁸^ORCID,Lin Hongmei²^ORCID,Polukhin Alexander⁹^ORCID,Zhang Yixing²^ORCID,Zhang Yongli¹⁰^ORCID,Bi Haibo³¹¹,Lin Xinyu²,Luo Yiming¹²,Zhuang Yanpei¹^ORCID,He Jianfeng⁵,Chen Jianfang¹³^ORCID,Cai Wei-Jun⁴^ORCID

Affiliation:

1. Polar and Marine Research Institute, College of Harbor and Coastal Engineering, Jimei University, Xiamen 361021, China.

2. Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China.

3. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China.

4. School of Marine Science and Policy, University of Delaware, Newark, DE, USA.

5. Key Laboratory for Polar Science of the Ministry of Natural Resources, Polar Research Institute of China, Shanghai 200136, China.

6. Pacific Marine Environmental Laboratory–National Oceanic and Atmospheric Administration, Seattle, WA, USA.

7. Department of Marine Sciences, University of Gothenburg, SE-412 96 Gothenburg, Sweden.

8. Key Laboratory of Physical Oceanography, Ocean University of China, Shandong, China.

9. P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia.

10. School of Marine Science and Technology, Tianjin University, Tianjin, China.

11. Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences, Qingdao 266071, China.

12. School of Marine Sciences, Sun Yat-Sen University, Zhuhai, China.

13. Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China.

Abstract

The Arctic Ocean has experienced rapid warming and sea ice loss in recent decades, becoming the first open-ocean basin to experience widespread aragonite undersaturation [saturation state of aragonite (Ω arag ) < 1]. However, its trend toward long-term ocean acidification and the underlying mechanisms remain undocumented. Here, we report rapid acidification there, with rates three to four times higher than in other ocean basins, and attribute it to changing sea ice coverage on a decadal time scale. Sea ice melt exposes seawater to the atmosphere and promotes rapid uptake of atmospheric carbon dioxide, lowering its alkalinity and buffer capacity and thus leading to sharp declines in pH and Ω arag . We predict a further decrease in pH, particularly at higher latitudes where sea ice retreat is active, whereas Arctic warming may counteract decreases in Ω arag in the future.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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