Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season.
Author Posting. © American Geophysical Union, 2019. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research-Oceans 124(2), (2019):821-843, doi:10.1029/2018JC014568. Shift...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/24008 2023-05-15T14:24:12+02:00 Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. Juranek, Laurie W. Takahashi, Taro Mathis, Jeremy T. Pickart, Robert S. 2019-01-10 https://hdl.handle.net/1912/24008 unknown American Geophysical Union https://doi.org/10.1029/2018JC014568 Juranek, L., Takahashi, T., Mathis, J., & Pickart, R. (2019). Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. Journal of Geophysical Research-Oceans, 124(2), 821-843. https://hdl.handle.net/1912/24008 doi:10.1029/2018JC014568 Juranek, L., Takahashi, T., Mathis, J., & Pickart, R. (2019). Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. Journal of Geophysical Research-Oceans, 124(2), 821-843. doi:10.1029/2018JC014568 Article 2019 ftwhoas https://doi.org/10.1029/2018JC014568 2022-05-28T23:03:03Z Author Posting. © American Geophysical Union, 2019. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research-Oceans 124(2), (2019):821-843, doi:10.1029/2018JC014568. Shifting baselines in the Arctic atmosphere‐sea ice‐ocean system have significant potential to alter biogeochemical cycling and ecosystem dynamics. In particular, the impact of increased open water duration on lower trophic level productivity and biological CO2 sequestration is poorly understood. Using high‐resolution observations of surface seawater dissolved O2/Ar and pCO2 collected in the Pacific Arctic in October 2011 and 2012, we evaluate spatial variability in biological metabolic status (autotrophy vs heterotrophy) as constrained by O2/Ar saturation (∆O2/Ar) as well as the relationship between net biological production and the sea‐air gradient of pCO2 (∆pCO2). We find a robust relationship between ∆pCO2 and ∆O2/Ar (correlation coefficient of −0.74 and −0.61 for 2011 and 2012, respectively), which suggests that biological production in the late open water season is an important determinant of the air‐sea CO2 gradient at a timeframe of maximal ocean uptake for CO2 in this region. Patchiness in biological production as indicated by ∆O2/Ar suggests spatially variable nutrient supply mechanisms supporting late season growth amidst a generally strongly stratified and nutrient‐limited condition. We thank the Captain, crew, and marine technicians of the USCGC Healy for their shipboard support. We also thank anonymous reviewers for providing useful feedback that improved this manuscript. This work was supported by NSF awards 1232856 and 1504394 to L.W.J. T.T. was supported by a grant NA150AR4320064 from Climate Program Office/NOAA and R.P. by NSF PLR‐1504333 and OPP‐1702371. All O2 and O2/Ar data and metadata are available at Arcticdata.io, doi:10.18739/A21G22, and pCO2 data are available at www.ldeo.columbia.edu/CO2 as ... Article in Journal/Newspaper Arctic Arctic Pacific Arctic Sea ice Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Arctic Pacific Journal of Geophysical Research: Oceans 124 2 821 843 |
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Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
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Author Posting. © American Geophysical Union, 2019. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research-Oceans 124(2), (2019):821-843, doi:10.1029/2018JC014568. Shifting baselines in the Arctic atmosphere‐sea ice‐ocean system have significant potential to alter biogeochemical cycling and ecosystem dynamics. In particular, the impact of increased open water duration on lower trophic level productivity and biological CO2 sequestration is poorly understood. Using high‐resolution observations of surface seawater dissolved O2/Ar and pCO2 collected in the Pacific Arctic in October 2011 and 2012, we evaluate spatial variability in biological metabolic status (autotrophy vs heterotrophy) as constrained by O2/Ar saturation (∆O2/Ar) as well as the relationship between net biological production and the sea‐air gradient of pCO2 (∆pCO2). We find a robust relationship between ∆pCO2 and ∆O2/Ar (correlation coefficient of −0.74 and −0.61 for 2011 and 2012, respectively), which suggests that biological production in the late open water season is an important determinant of the air‐sea CO2 gradient at a timeframe of maximal ocean uptake for CO2 in this region. Patchiness in biological production as indicated by ∆O2/Ar suggests spatially variable nutrient supply mechanisms supporting late season growth amidst a generally strongly stratified and nutrient‐limited condition. We thank the Captain, crew, and marine technicians of the USCGC Healy for their shipboard support. We also thank anonymous reviewers for providing useful feedback that improved this manuscript. This work was supported by NSF awards 1232856 and 1504394 to L.W.J. T.T. was supported by a grant NA150AR4320064 from Climate Program Office/NOAA and R.P. by NSF PLR‐1504333 and OPP‐1702371. All O2 and O2/Ar data and metadata are available at Arcticdata.io, doi:10.18739/A21G22, and pCO2 data are available at www.ldeo.columbia.edu/CO2 as ... |
format |
Article in Journal/Newspaper |
author |
Juranek, Laurie W. Takahashi, Taro Mathis, Jeremy T. Pickart, Robert S. |
spellingShingle |
Juranek, Laurie W. Takahashi, Taro Mathis, Jeremy T. Pickart, Robert S. Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. |
author_facet |
Juranek, Laurie W. Takahashi, Taro Mathis, Jeremy T. Pickart, Robert S. |
author_sort |
Juranek, Laurie W. |
title |
Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. |
title_short |
Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. |
title_full |
Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. |
title_fullStr |
Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. |
title_full_unstemmed |
Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. |
title_sort |
significant biologically mediated co2 uptake in the pacific arctic during the late open water season. |
publisher |
American Geophysical Union |
publishDate |
2019 |
url |
https://hdl.handle.net/1912/24008 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Arctic Pacific Arctic Sea ice |
genre_facet |
Arctic Arctic Pacific Arctic Sea ice |
op_source |
Juranek, L., Takahashi, T., Mathis, J., & Pickart, R. (2019). Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. Journal of Geophysical Research-Oceans, 124(2), 821-843. doi:10.1029/2018JC014568 |
op_relation |
https://doi.org/10.1029/2018JC014568 Juranek, L., Takahashi, T., Mathis, J., & Pickart, R. (2019). Significant biologically mediated CO2 uptake in the pacific arctic during the late open water season. Journal of Geophysical Research-Oceans, 124(2), 821-843. https://hdl.handle.net/1912/24008 doi:10.1029/2018JC014568 |
op_doi |
https://doi.org/10.1029/2018JC014568 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
124 |
container_issue |
2 |
container_start_page |
821 |
op_container_end_page |
843 |
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1766296656060350464 |