Articles | Volume 14, issue 7
https://doi.org/10.5194/bg-14-1919-2017
https://doi.org/10.5194/bg-14-1919-2017
Research article
 | 
07 Apr 2017
Research article |  | 07 Apr 2017

The roles of resuspension, diffusion and biogeochemical processes on oxygen dynamics offshore of the Rhône River, France: a numerical modeling study

Julia M. Moriarty, Courtney K. Harris, Katja Fennel, Marjorie A. M. Friedrichs, Kehui Xu, and Christophe Rabouille

Related authors

A high-resolution nested model to study the effects of alkalinity additions in Halifax Harbour, a mid-latitude coastal fjord
Arnaud Laurent, Bin Wang, Dariia Atamanchuk, Subhadeep Rakshit, Kumiko Azetsu-Scott, Chris Algar, and Katja Fennel
EGUsphere, https://doi.org/10.5194/egusphere-2025-3361,https://doi.org/10.5194/egusphere-2025-3361, 2025
This preprint is open for discussion and under review for Biogeosciences (BG).
Short summary
Temperature-based Diagnosis of the Gulf Stream Path Overestimates its Northward Shift in a Warming Ocean
Lina Garcia-Suarez, Katja Fennel, Neha Mehendale, Tronje Peer Kemena, and David Peter Keller
EGUsphere, https://doi.org/10.22541/essoar.173758192.24328151/v2,https://doi.org/10.22541/essoar.173758192.24328151/v2, 2025
This preprint is open for discussion and under review for Ocean Science (OS).
Short summary
Sediment Biogeochemistry Model Intercomparison Project (SedBGC_MIP): motivation and guidance for its experimental design
Samantha Siedlecki, Stanley Nmor, Gennadi Lessin, Kelly Kearney, Subhadeep Rakshit, Colleen Petrik, Jessica Luo, Cristina Schultz, Dalton Sasaki, Kayla Gillen, Anh Pham, Christopher Somes, Damian Brady, Jeremy Testa, Christophe Rabouille, Isa Elegbede, and Olivier Sulpis
EGUsphere, https://doi.org/10.5194/egusphere-2025-1846,https://doi.org/10.5194/egusphere-2025-1846, 2025
This preprint is open for discussion and under review for Geoscientific Model Development (GMD).
Short summary
Acidification, warming, and nutrient management are projected to cause reductions in shell and tissue weights of oysters in a coastal plain estuary
Catherine R. Czajka, Marjorie A. M. Friedrichs, Emily B. Rivest, Pierre St-Laurent, Mark J. Brush, and Fei Da
Biogeosciences, 22, 3181–3206, https://doi.org/10.5194/bg-22-3181-2025,https://doi.org/10.5194/bg-22-3181-2025, 2025
Short summary
Numerical models for monitoring and forecasting ocean biogeochemistry: a short description of present status
Gianpiero Cossarini, Andrew Moore, Stefano Ciavatta, and Katja Fennel
State Planet, 5-opsr, 12, https://doi.org/10.5194/sp-5-opsr-12-2025,https://doi.org/10.5194/sp-5-opsr-12-2025, 2025
Short summary

Related subject area

Biogeophysics: Benthic Boundary Layer Processes
Scars in the abyss: reconstructing sequence, location and temporal change of the 78 plough tracks of the 1989 DISCOL deep-sea disturbance experiment in the Peru Basin
Florian Gausepohl, Anne Hennke, Timm Schoening, Kevin Köser, and Jens Greinert
Biogeosciences, 17, 1463–1493, https://doi.org/10.5194/bg-17-1463-2020,https://doi.org/10.5194/bg-17-1463-2020, 2020
Short summary
Abyssal plain hills and internal wave turbulence
Hans van Haren
Biogeosciences, 15, 4387–4403, https://doi.org/10.5194/bg-15-4387-2018,https://doi.org/10.5194/bg-15-4387-2018, 2018
Short summary
Technical note: Time lag correction of aquatic eddy covariance data measured in the presence of waves
P. Berg, C. E. Reimers, J. H. Rosman, M. Huettel, M. L. Delgard, M. A. Reidenbach, and H. T. Özkan-Haller
Biogeosciences, 12, 6721–6735, https://doi.org/10.5194/bg-12-6721-2015,https://doi.org/10.5194/bg-12-6721-2015, 2015
Short summary

Cited articles

Abril, G., Etcheber, H., Le Hir, P., Bassoullet, P., Boutier, B., and Frankignoulle, M.: Oxic/anoxic oscillations and organic carbon mineralization in an estuarine maximum turbidity zone (the Gironde, France), Limnol. Oceanogr., 44, 1304–1315, https://doi.org/10.4319/lo.1999.44.5.1304, 1999.
Aikman, F., Brady, D.C., Brush, M. J., Burke, P., Cerco, C. F., Fitzpatrick, J. J., and Kemp, W. M.: Modeling approaches for scenario forecasts of Gulf of Mexico hypoxia, in: White Paper from the Hypoxic Zone Modeling Technical Review Meeting, Mississippi State University Science and Technology Center, edited by: Kidwell, D., Lewitus, A., and Turner, E., NASA's Stennis Space Center, Mississippi, 1–46, 2014.
Aller, R. C.: Bioturbation and remineralization of sedimentary organic matter: effects of redox oscillation, Chem. Geol., 114, 331–345. https://doi.org/10.1016/0009-2541(94)90062-0, 1994.
Aller, R. C.: Mobile deltaic and continental shelf muds as suboxic, fluidized bed reactors, Mar. Chem., 61, 143–155, 1998.
Aller, R. C., Blair, N. E., Xia, Q., and Rude, P. D.: Remineralization rates, recycling, and storage of carbon in Amazon shelf sediments, Cont. Shelf Res., 16, 753–786, https://doi.org/10.1016/0278-4343(95)00046-1, 1996.
Download
Short summary
In coastal aquatic environments, resuspension of sediment and organic material from the seabed into the overlying water can impact biogeochemistry. Here, we used a novel modeling approach to quantify this impact for the Rhône River delta. In the model, resuspension increased oxygen consumption during individual resuspension events, and when results were averaged over 2 months. This implies that observations and models that only represent calm conditions may underestimate net oxygen consumption.
Share
Altmetrics
Final-revised paper
Preprint