气候变化领域集成服务门户(CCPortal): Widespread and increasing near-bottom hypoxia in the coastal ocean off the United States Pacific Northwest

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DOI	10.1038/s41598-024-54476-0
	Widespread and increasing near-bottom hypoxia in the coastal ocean off the United States Pacific Northwest
	Barth, John A.; Pierce, Stephen D.; Carter, Brendan R.; Chan, Francis; Erofeev, Anatoli Y.; Fisher, Jennifer L.; Feely, Richard A.; Jacobson, Kym C.; Keller, Aimee A.; Morgan, Cheryl A.; Pohl, John E.; Rasmuson, Leif K.; Simon, Victor
发表日期	2024
ISSN	2045-2322
起始页码	14
结束页码	1
卷号	14 期号:1
英文摘要	The 2021 summer upwelling season off the United States Pacific Northwest coast was unusually strong leading to widespread near-bottom, low-oxygen waters. During summer 2021, an unprecedented number of ship- and underwater glider-based measurements of dissolved oxygen were made in this region. Near-bottom hypoxia, that is dissolved oxygen less than 61 mu mol kg-1 and harmful to marine animals, was observed over nearly half of the continental shelf inshore of the 200-m isobath, covering 15,500 square kilometers. A mid-shelf ribbon with near-bottom, dissolved oxygen less than 50 mu mol kg-1 extended for 450 km off north-central Oregon and Washington. Spatial patterns in near-bottom oxygen are related to the continental shelf width and other features of the region. Maps of near-bottom oxygen since 1950 show a consistent trend toward lower oxygen levels over time. The fraction of near-bottom water inshore of the 200-m isobath that is hypoxic on average during the summer upwelling season increases over time from nearly absent (2%) in 1950-1980, to 24% in 2009-2018, compared with 56% during the anomalously strong upwelling conditions in 2021. Widespread and increasing near-bottom hypoxia is consistent with increased upwelling-favorable wind forcing under climate change.
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:001163476700080
来源期刊	SCIENTIFIC REPORTS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295839
作者单位	Oregon State University; National Oceanic Atmospheric Admin (NOAA) - USA; Oregon State University; Oregon State University; National Oceanic Atmospheric Admin (NOAA) - USA
推荐引用方式 GB/T 7714	Barth, John A.,Pierce, Stephen D.,Carter, Brendan R.,et al. Widespread and increasing near-bottom hypoxia in the coastal ocean off the United States Pacific Northwest[J],2024,14(1).
APA	Barth, John A..,Pierce, Stephen D..,Carter, Brendan R..,Chan, Francis.,Erofeev, Anatoli Y..,...&Simon, Victor.(2024).Widespread and increasing near-bottom hypoxia in the coastal ocean off the United States Pacific Northwest.SCIENTIFIC REPORTS,14(1).
MLA	Barth, John A.,et al."Widespread and increasing near-bottom hypoxia in the coastal ocean off the United States Pacific Northwest".SCIENTIFIC REPORTS 14.1(2024).