Open Access Repository

New estimates of Southern Ocean annual net community production revealed by BGC-Argo floats

Su, J, Schallenberg, C ORCID: 0000-0002-3073-7500, Rohr, T ORCID: 0000-0001-6599-8068, Strutton, PG ORCID: 0000-0002-2395-9471 and Phillips, HE ORCID: 0000-0002-2941-7577 2022 , 'New estimates of Southern Ocean annual net community production revealed by BGC-Argo floats' , Geophysical Research Letters , pp. 1-21 , doi:

PDF (Post-print)
SuSouthernOcean...pdf | Download (1MB)

| Preview


Using an expanding Southern Ocean fleet of biogeochemical Argo (BGC-Argo) floats, we developed a novel approach to estimate annual net community production (ANCP) by integrating subsurface oxygen drawdown from all available BGC-Argo oxygen profiles. Our results suggest that, on average, 14% of remineralization occurs between 500 and 1000 m and 15% occurs between the euphotic depth and 100 m. Using the improved methodology, we estimated total basin-integrated ANCP in the Southern Ocean to be 3.89 GT C year-1 suggesting a more important role for the Southern Ocean in regulating oceanic carbon storage, atmospheric CO2 exchange and climate than previously assumed.

Item Type: Article
Authors/Creators:Su, J and Schallenberg, C and Rohr, T and Strutton, PG and Phillips, HE
Keywords: Southern Ocean, primary productivity
Journal or Publication Title: Geophysical Research Letters
Publisher: Amer Geophysical Union
ISSN: 0094-8276
DOI / ID Number:
Copyright Information:

This article is protected by copyright. All rights reserved.An edited version of this paper was published by AGU. Copyright 2022 the authors.

Related URLs:
Item Statistics: View statistics for this item

Actions (login required)

Item Control Page Item Control Page