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  • Course of study: MSc Biological Oceanography
  • Crustal deformation (cf. Earthquake precursor: deformation or strain)
  • E62
  • American Geophysical Union  (5)
  • Wiley
Collection
Years
  • 1
    Publication Date: 2023-02-08
    Description: We use observations from novel biogeochemical profiling floats deployed by the Southern Ocean Carbon and Climate Observations and Modeling program to estimate annual net community production (ANCP; associated with carbon export) from the seasonal drawdown of mesopelagic oxygen and surface nitrate in the Southern Ocean. Our estimates agree with previous observations in showing an increase in ANCP in the vicinity of the polar front (∼3 mol C m−2 y−1), compared to lower rates in the subtropical zone (≤ 1 mol C m−2 y−1) and the seasonal ice zone (〈2 mol C m−2 y−1). Paradoxically, the increase in ANCP south of the subtropical front is associated with elevated surface nitrate and silicate concentrations, but decreasing surface iron. We hypothesize that iron limitation promotes silicification in diatoms, which is evidenced by the low silicate to nitrate ratio of surface waters around the Antarctic polar front. High diatom silicification increases the ballasting effect of particulate organic carbon and overall ANCP in this region. A model-based assessment of our methods shows a good agreement between ANCP estimates based on oxygen and nitrate drawdown and the modeled downward organic carbon flux at 100 m. This agreement supports the presumption that net biological consumption is the dominant process affecting the drawdown of these chemical tracers and that, given sufficient data, ANCP can be inferred from observations of oxygen and/or nitrate drawdown in the Southern Ocean.
    Keywords: Course of study: MSc Biological Oceanography
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    American Geophysical Union
    In:  U.S. National Report to International Union of Geodesy and Geophysics 1991 - 1994. Contributions in Dynamics of the Solid Earth and Other Planets, ed. by, Washington, D.C., American Geophysical Union, vol. 10, no. 302, pp. 365-369
    Publication Date: 1995
    Keywords: Plate tectonics ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Seismicity ; Geodesy ; Review article
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  • 3
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    American Geophysical Union
    In:  Bull., Open-File Rept., U.S. National Report to International Union of Geodesy and Geophysics 1991 - 1994, Washington, D.C., American Geophysical Union, vol. 65, no. 1, pp. 23-40, (ISBN 0080419208)
    Publication Date: 1995
    Keywords: Review article ; Seismology ; Tectonics ; Plate tectonics ; Volcanology ; Earthquake hazard ; Earthquake precursor: prediction research ; Earth rotation ; Geochemistry ; Nuclear explosion ; Source ; Deep seismic sounding (espec. cont. crust) ; GeodesyY ; Chaotic behaviour ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Rock mechanics ; remote ; sensing ; Mineralogy ; Geodesy ; Global Positioning System ; Very Long Baseline Interferometry ; Satellite Laser Ranging ; Gravimetry, Gravitation ; Planetology
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  • 4
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    American Geophysical Union
    In:  U.S. National Report to International Union of Geodesy and Geophysics 1991 - 1994. Contributions in Dynamics of the Solid Earth and Other Planets, ed. by R. A. Pielke, Washington, D.C., American Geophysical Union, vol. C 560, 183 pp., no. M79-E-11 [79127 Arto 129], pp. 249-255, (ISBN 3-933346-037)
    Publication Date: 1995
    Keywords: Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Earthquake hazard ; Review article
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  • 5
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    American Geophysical Union
    In:  U.S. National Report to International Union of Geodesy and Geophysics 1991 - 1994. Contributions in Dynamics of the Solid Earth and Other Planets, ed. by R. A. Pielke, Washington, D.C., American Geophysical Union, vol. C 560, 183 pp., no. PL-TR-91-2097, pp. 371-377, (ISBN 3-933346-037)
    Publication Date: 1995
    Keywords: Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Geodesy ; Very Long Baseline Interferometry ; Satellite Laser Ranging ; Global Positioning System ; Plate tectonics ; Review article
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  • 6
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    American Geophysical Union
    In:  U.S. National Report to International Union of Geodesy and Geophysics 1991 - 1994. Contributions in Dynamics of the Solid Earth and Other Planets, ed. by R. A. Pielke, Washington, D.C., American Geophysical Union, vol. 1034, no. SAND 80-2048, pp. 283-286, (ISBN 3-933346-037)
    Publication Date: 1995
    Keywords: Source ; Seismology ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Energy (of earthquakes) ; Review article
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  • 7
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    Wiley
    In:  New York, 571 pp., Wiley, vol. 5, no. XVI:, pp. 1-14, (ISBN 0-89871-521-0)
    Publication Date: 1976
    Keywords: Structural geology ; Textbook of geology ; Stress ; Geol. aspects ; Crustal deformation (cf. Earthquake precursor: deformation or strain)
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