Tobias Craig

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Tobias
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Craig
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  • Dataset
    Open Mesocosm Oyster 15N2 and N2O
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-05-08) Tobias, Craig ; Brush, Mark ; Piehler, Michael F. ; Song, Bongkeun
    Open Mesocosm Oyster 15N2 and N2O For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/722433
  • Dataset
    N2O, 15N2, 15N tissue tracer in oyster aquariums (Oyster Reef N2O Emission project)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-05-08) Tobias, Craig ; Brush, Mark ; Piehler, Michael F. ; Song, Bongkeun
    N2O, 15N2, 15N tissue tracer in oyster aquariums For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/722560
  • Dataset
    Dissolved oxygen from 4 field sites in Bogue Sound, North Carolina from 2014 to 2015.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2020-01-21) Piehler, Michael F. ; Brush, Mark ; Song, Bongkeun ; Tobias, Craig
    Dissolved oxygen from 4 field sites in Bogue Sound, North Carolina from 2014 to 2015. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/721344
  • Dataset
    Closed Oyster Mesocosm 15N Tracer (Oyster Reef N2O Emission project)
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-05-07) Tobias, Craig ; Brush, Mark ; Piehler, Michael F. ; Song, Bongkeun
    Closed Oyster Mesocosm 15N Tracer For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/722517
  • Dataset
    Sediment fluxes of dissolved gasses and nutrients from the coast of North Carolina in 2010.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-03-28) Piehler, Michael F. ; Brush, Mark ; Song, Bongkeun ; Tobias, Craig
    Sediment fluxes of dissolved gasses and nutrients from the coast of North Carolina in 2010. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/704346
  • Article
    Parameterizing air-water gas exchange in the shallow, microtidal New River estuary
    (American Geophysical Union, 2019-07-09) Van Dam, Bryce R. ; Edson, James B. ; Tobias, Craig
    Estuarine CO2 emissions are important components of regional and global carbon budgets, but assessments of this flux are plagued by uncertainties associated with gas transfer velocity (k) parameterization. We combined direct eddy covariance measurements of CO2 flux with waterside pCO2 determinations to generate more reliable k parameterizations for use in small estuaries. When all data were aggregated, k was described well by a linear relationship with wind speed (U10), in a manner consistent with prior open ocean and estuarine k parameterizations. However, k was significantly greater at night and under low wind speed, and nighttime k was best predicted by a parabolic, rather than linear, relationship with U10. We explored the effect of waterside thermal convection but found only a weak correlation between convective scale and k. Hence, while convective forcing may be important at times, it appears that factors besides waterside thermal convection were likely responsible for the bulk of the observed nighttime enhancement in k. Regardless of source, we show that these day‐night differences in k should be accounted for when CO2 emissions are assessed over short time scales or when pCO2 is constant and U10 varies. On the other hand, when temporal variability in pCO2 is large, it exerts greater control over CO2 fluxes than does k parameterization. In these cases, the use of a single k value or a simple linear relationship with U10 is often sufficient. This study provides important guidance for k parameterization in shallow or microtidal estuaries, especially when diel processes are considered.
  • Dataset
    Change in denitrification due to oyster reefs from the coast of North Carolina in 2010
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-03-28) Piehler, Michael F. ; Brush, Mark ; Song, Bongkeun ; Tobias, Craig
    Change in denitrification due to oyster reefs from the coast of North Carolina in 2010 For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/704359
  • Dataset
    Measurements of nutrient flux and denitrification in clam aquaculture sediments.
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-05-26) Song, Bongkeun ; Brush, Mark J. ; Piehler, Michael F. ; Tobias, Craig
    Measurements of nutrient flux and denitrification in clam aquaculture sediments. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/700800
  • Dataset
    Oyster density and size distribution from the coast of North Carolina in 2010
    (Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-03-28) Piehler, Michael F. ; Brush, Mark ; Song, Bongkeun ; Tobias, Craig
    Oyster density and size distribution from the coast of North Carolina in 2010 For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/704333