scholarly journals Dissolved organic carbon fluxes in the Middle Atlantic Bight: An integrated approach based on satellite data and ocean model products

2016 ◽  
Vol 121 (2) ◽  
pp. 312-336 ◽  
Author(s):  
Antonio Mannino ◽  
Sergio R. Signorini ◽  
Michael G. Novak ◽  
John Wilkin ◽  
Marjorie A. M. Friedrichs ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Satellite Data ◽  
Carbon Fluxes ◽  
Integrated Approach ◽  
Ocean Model ◽  
Middle Atlantic Bight ◽  
Middle Atlantic ◽  
Organic Carbon Fluxes

Phosphorus, nitrogen and dissolved organic carbon fluxes from sediments in freshwater rivermouths entering Green Bay (Lake Michigan; USA)

2020 ◽  
Vol 147 (2) ◽  
pp. 179-197 ◽  
Author(s):  
James H. Larson ◽  
William F. James ◽  
Faith A. Fitzpatrick ◽  
Paul C. Frost ◽  
Mary Anne Evans ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Lake Michigan ◽  
Carbon Fluxes ◽  
Green Bay ◽  
Organic Carbon Fluxes

Dissolved Organic Carbon Fluxes under Bare Soil

2007 ◽  
Vol 36 (2) ◽  
pp. 597-606 ◽  
Author(s):  
Jan Mertens ◽  
Jan Vanderborght ◽  
Roy Kasteel ◽  
Thomas Pütz ◽  
Roel Merckx ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Carbon Fluxes ◽  
Bare Soil ◽  
Organic Carbon Fluxes

scholarly journals Benthic dissolved organic carbon fluxes in a drinking water reservoir

2015 ◽  
Vol 61 (2) ◽  
pp. 445-459 ◽  
Author(s):  
Tallent Dadi ◽  
Kurt Friese ◽  
Katrin Wendt-Potthoff ◽  
Matthias Koschorreck
Keyword(s):  
Drinking Water ◽  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Water Reservoir ◽  
Carbon Fluxes ◽  
Drinking Water Reservoir ◽  
Organic Carbon Fluxes

scholarly journals Reconciling surface ocean productivity, export fluxes and sediment composition in a global biogeochemical ocean model

2006 ◽  
Vol 3 (3) ◽  
pp. 803-836 ◽  
Author(s):  
M. Gehlen ◽  
L. Bopp ◽  
N. Emprin ◽  
O. Aumont ◽  
C. Heinze ◽  
...  
Keyword(s):  
Particle Size ◽  
Organic Carbon ◽  
Particulate Organic Carbon ◽  
Carbon Fluxes ◽  
Ocean Model ◽  
Size Spectrum ◽  
Water Interface ◽  
Standard Version ◽  
Surface Ocean ◽  
Organic Carbon Fluxes

Abstract. This study focuses on an improved representation of the biological soft tissue pump in the global three-dimensional biogeochemical ocean model PISCES. We compare three parameterizations of particle dynamics: (1) the model standard version including two particle size classes, aggregation-disaggregation and prescribed sinking speed; (2) an aggregation-disaggregation model with a particle size spectrum and prognostic sinking speed; (3) a mineral ballast parameterization with no size classes, but prognostic sinking speed. In addition, the model includes a description of surface sediments and organic carbon early diagenesis. The integrated representation of material fluxes from the productive surface ocean down to the sediment-water interface allows taking advantage of surface ocean observations, sediment trap data and exchange fluxes at the sediment-water interface. The capability of the model to reproduce yearly averaged particulate organic carbon fluxes and benthic oxygen demand does at first order not dependent on the resolution of the particle size spectrum. Model results obtained with the standard version and with the one including a particle size spectrum and prognostic sinking speed are not significantly different. Both model versions overestimate particulate organic carbon between 1000 and 2000 m, while deep fluxes are of the correct order of magnitude. Predicted benthic oxygen fluxes correspond with respect to their large scale distribution and magnitude to data based estimates. Modeled particulate organic C fluxes across the mesopelagos are most sensitive to the intensity of zooplankton flux feeding. An increase of the intensity of flux feeding in the standard version results in lower mid- and deep-water particulate organic carbon fluxes, shifting model results to an underestimation of particulate organic carbon fluxes in the deep. The corresponding benthic oxygen fluxes are too low. The model version including the mineral ballast parameterization yields an improved fit between modeled and observed particulate organic carbon fluxes below 2000 m and down to the sediment-water interface. Our results suggest that aggregate formation alone might not be sufficient to drive an intense biological pump. The later is most likely driven by the combined effect of aggregate formation and mineral ballasting.

Coupling carbon metabolism and dissolved organic carbon fluxes in benthic and pelagic coastal communities

2019 ◽  
Vol 227 ◽  
pp. 106336 ◽  
Author(s):  
Luis G. Egea ◽  
Cristina Barrón ◽  
Rocío Jiménez–Ramos ◽  
Ignacio Hernández ◽  
Juan J. Vergara ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Carbon Metabolism ◽  
Carbon Fluxes ◽  
Coastal Communities ◽  
Organic Carbon Fluxes

scholarly journals Benthic dissolved organic carbon fluxes and distribution in Lake Baikal sediments

2020 ◽  
pp. 879-881
Author(s):  
T. Pogodaeva ◽  
◽  
I. Lopatina ◽  
N. Bashenkhaeva ◽  
O. Shubenkova ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Dissolved Organic Carbon ◽  
Lake Baikal ◽  
Carbon Fluxes ◽  
Organic Carbon Fluxes
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