气候变化领域集成服务门户(CCPortal): Does Export Production Measure Transient Changes of the Biological Carbon Pump's Feedback to the Atmosphere Under Global Warming?

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DOI	10.1029/2020GL089928
	Does Export Production Measure Transient Changes of the Biological Carbon Pump's Feedback to the Atmosphere Under Global Warming?
	Koeve W.; Kähler P.; Oschlies A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	In a widely-held conception, the biological carbon pump (BCP) is equal to the export of organic matter out of the euphotic zone. Using global ocean-atmosphere model experiments we show that the change in export production is a poor measure of the biological pump's feedback to the atmosphere. The change in global true oxygen utilization (TOU), an integrative measure of the imprint of the BCP on marine oxygen, however, is in good agreement with the net change in the biogenic air-sea flux of oxygen. Since TOU correlates very well with apparent oxygen utilization (AOU) in our experiments, we propose to measure the change of AOU from data of global float programs to monitor the feedback of the BCP to the atmosphere. For the current ocean we estimate that BCP changes effect a CO2 uptake by the ocean in the range of 0.07 to 0.14 GtC/yr. ©2020. The Authors.
英文关键词	Carbon; Global warming; Transient analysis; Air sea flux; Apparent oxygen utilizations; Biological pumps; Euphotic zone; Export production; Global ocean; Oxygen utilization; Transient changes; Oxygen; air-sea interaction; Argo; biogenic emission; biological pump; carbon dioxide; euphotic zone; feedback mechanism; nutrient cycling; oxygen consumption; Varanidae
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/169417
作者单位	Biogeochemical Modelling, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
推荐引用方式 GB/T 7714	Koeve W.,Kähler P.,Oschlies A.. Does Export Production Measure Transient Changes of the Biological Carbon Pump's Feedback to the Atmosphere Under Global Warming?[J],2020,47(22).
APA	Koeve W.,Kähler P.,&Oschlies A..(2020).Does Export Production Measure Transient Changes of the Biological Carbon Pump's Feedback to the Atmosphere Under Global Warming?.Geophysical Research Letters,47(22).
MLA	Koeve W.,et al."Does Export Production Measure Transient Changes of the Biological Carbon Pump's Feedback to the Atmosphere Under Global Warming?".Geophysical Research Letters 47.22(2020).