Net Community Production in the Southern Ocean: Insights From Comparing Atmospheric Potential Oxygen to Satellite Ocean Color Algorithms and Ocean Models

Nevison, Cynthia; Munro, David; Lovenduski, Nicole; Cassar, Nicolas; Keeling, Ralph; Krummel, Paul; Tjiputra, Jerry

doi:10.1029/2018gl079575

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i

Net Community Production in the Southern Ocean: Insights From Comparing Atmospheric Potential Oxygen to Satellite Ocean Color Algorithms and Ocean Models

2018
By Nevison, Cynthia ; Munro, David ; Lovenduski, Nicole ; ...
Source: Geophysical Research Letters, 45(19)

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Details:

Journal Title:

Geophysical Research Letters
Personal Author:

Nevison, Cynthia ; Munro, David ; Lovenduski, Nicole ; Cassar, Nicolas ; Keeling, Ralph ; ... More +

Nevison, Cynthia ; Munro, David ; Lovenduski, Nicole ; Cassar, Nicolas ; Keeling, Ralph ; Krummel, Paul ; Tjiputra, Jerry Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information)

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information) Less -
Description:

The contribution of oceanic net community production (NCP) to the observed seasonal cycle in atmospheric potential oxygen (APO) is estimated at Cape Grim, Tasmania. The resulting APO NCPsignal is compared to satellite and ocean model-based estimates of POC export and NCP across the Southern Ocean. The satellite products underestimate the amplitude of the observed APO NCPseasonal cycle by more than a factor of 2. Ocean models suggest two reasons for this underestimate: (1) Current satellite products substantially underestimate the magnitude of NCP in early spring. (2) Seasonal O 2outgassing is supported in large part by storage of carbon in DOC and living biomass. More DOC observations are needed to helpevaluate this latter model prediction. Satellite products could be improved by developing seasonally
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General Earth And Planetary Sciences Geophysics
Source:

Geophysical Research Letters, 45(19)
DOI:

https://doi.org/10.1029/2018gl079575
ISSN:

0094-8276;1944-8007;
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PDF
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American Geophysical Union (AGU)
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Journal Article
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urn:sha256:c0b49585c068f082c7c7f11b64c60d21b08adb836b9d47683877c3ec36b103f2
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https://repository.library.noaa.gov/view/noaa/54202/noaa_54202_DS1.pdf
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[PDF-1.65 MB]

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