气候变化领域集成服务门户(CCPortal): Constraint on net primary productivity of the global ocean by Argo oxygen measurements

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DOI	10.1038/s41561-021-00807-z
	Constraint on net primary productivity of the global ocean by Argo oxygen measurements
	Johnson K.S.; Bif M.B.
发表日期	2021
ISSN	17520894
英文摘要	The biological transformation of dissolved inorganic carbon to organic carbon during photosynthesis in the ocean, marine primary production, is a fundamental driver of biogeochemical cycling, ocean health and Earth’s climate system. The organic matter created supports oceanic food webs, including fisheries, and is an essential control on atmospheric carbon dioxide levels. Marine primary productivity is sensitive to changes due to climate forcing, but observing the response at the global scale remains a major challenge. Sparsely distributed productivity measurements are made using samples collected and analysed on research vessels. However, there are never enough ships and scientists to enable direct observations at the global scale with seasonal to annual resolution. Today, global ocean productivity is estimated using remote-sensing ocean-colour observations or general circulation models with coupled biological models that are calibrated with the sparse shipboard measurements. Here we demonstrate the measurement of gross oxygen production by photosynthesis using the diel cycle of oxygen concentration detected with the array of Biogeochemical-Argo profiling floats. The global ocean net primary productivity computed from this data is 53 Pg C y−1, which will be an important constraint on satellite and general circulation model-based estimates of the ocean productivity. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206913
作者单位	Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States
推荐引用方式 GB/T 7714	Johnson K.S.,Bif M.B.. Constraint on net primary productivity of the global ocean by Argo oxygen measurements[J],2021.
APA	Johnson K.S.,&Bif M.B..(2021).Constraint on net primary productivity of the global ocean by Argo oxygen measurements.Nature Geoscience.
MLA	Johnson K.S.,et al."Constraint on net primary productivity of the global ocean by Argo oxygen measurements".Nature Geoscience (2021).