气候变化领域集成服务门户(CCPortal): Geoengineered Ocean Vertical Water Exchange Can Accelerate Global Deoxygenation

CCPortal

DOI	10.1029/2020GL088263
	Geoengineered Ocean Vertical Water Exchange Can Accelerate Global Deoxygenation
	Feng E.Y.; Su B.; Oschlies A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	Ocean deoxygenation is a threat to marine ecosystems. We evaluated the potential of two ocean intervention technologies, that is, “artificial downwelling (AD)” and “artificial upwelling (AU),” for remedying the expansion of Oxygen Deficient Zones (ODZs). The model-based assessment simulated AD and AU implementations for 80 years along the eastern Pacific ODZ. When AD was simulated by pumping surface seawater to the 178–457 m-depth range of the ODZ, vertically integrated oxygen increased by up to 4.5% in the deployment region. Pumping water from 457 m depth to the surface (i.e., AU), where it can equilibrate with the atmosphere, increased the vertically integrated oxygen by 1.03%. However, both simulated AD and AU increased biological production via enhanced nutrient supply to the sea surface, resulting in enhanced export production and subsequent aerobic remineralization also outside of the actual implementation region, and an ultimate net decline of global oceanic oxygen. ©2020. The Authors.
英文关键词	Ecosystems; Surface waters; Artificial upwelling; Biological production; Eastern pacific; Export production; Nutrient supply; Oxygen deficient; Remineralization; Surface seawater; Oxygen supply; acceleration; air-sea interaction; biological production; chemical reaction; marine ecosystem; nutrient dynamics; oxygen minimum layer; Pacific Ocean; Pacific Ocean (East)
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/169866
作者单位	GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany; Now at Innoventure GmbH, Hamburg, Germany; School of Environmental Sciences, University of Liverpool, Liverpool, United Kingdom; Now at Institute of Marine Science and Technology, Shandong University, Jinan, China
推荐引用方式 GB/T 7714	Feng E.Y.,Su B.,Oschlies A.. Geoengineered Ocean Vertical Water Exchange Can Accelerate Global Deoxygenation[J],2020,47(16).
APA	Feng E.Y.,Su B.,&Oschlies A..(2020).Geoengineered Ocean Vertical Water Exchange Can Accelerate Global Deoxygenation.Geophysical Research Letters,47(16).
MLA	Feng E.Y.,et al."Geoengineered Ocean Vertical Water Exchange Can Accelerate Global Deoxygenation".Geophysical Research Letters 47.16(2020).