Journal cover Journal topic
Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/gmd-2017-267
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.
Model description paper
01 Dec 2017
Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).
Cohesive and mixed sediment in the Regional Ocean Modeling System (ROMS v3.6) implemented in the Coupled Ocean Atmosphere Wave Sediment-Transport Modeling System (COAWST r1179)
Christopher R. Sherwood1, Alfredo L. Aretxabaleta1, Courtney K. Harris2, J. Paul Rinehimer2,a, Romaric Verney3, and Bénédicte Ferre1,b 1US Geological Survey, 384 Woods Hole Road, Woods Hole, MA 02543-1598 USA
2Virginia Institute of Marine Sciences, Gloucester Point, Virginia, USA
3IFREMER, Plouzane, France
acurrently at: WEST Consultants, Bellevue, WA, USA
bcurrently at: CAGE-Centre for Arctic Gas Hydrate, Environment, and Climate; Department of Geosciences, UiT The Arctic University of Norway, 9037 Tromsø, Norway
Abstract. We describe and demonstrate algorithms for treating cohesive and mixed sediment that have been added to the Regional Ocean Modeling System (ROMS version 3.6), as implemented in the Coupled Ocean Atmosphere Wave Sediment-Transport Modeling System (COAWST Subversion repository revision 1179). These include: floc dynamics (aggregation and disaggregation in the water column); changes in floc characteristics in the seabed; erosion and deposition of cohesive and mixed (combination of cohesive and non-cohesive) sediment; and biodiffusive mixing of bed sediment. These routines supplement existing non-cohesive sediment modules, thereby increasing our ability to model fine-grained and mixed-sediment environments. Additionally, we describe changes to the sediment bed-layering scheme that improve the fidelity of the modeled stratigraphic record. Finally, we provide examples of these modules implemented in idealized test cases and a realistic application.

Citation: Sherwood, C. R., Aretxabaleta, A. L., Harris, C. K., Rinehimer, J. P., Verney, R., and Ferre, B.: Cohesive and mixed sediment in the Regional Ocean Modeling System (ROMS v3.6) implemented in the Coupled Ocean Atmosphere Wave Sediment-Transport Modeling System (COAWST r1179), Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2017-267, in review, 2017.
Christopher R. Sherwood et al.
Christopher R. Sherwood et al.
Christopher R. Sherwood et al.

Viewed

Total article views: 204 (including HTML, PDF, and XML)

HTML PDF XML Total Supplement BibTeX EndNote
158 44 2 204 14 3 2

Views and downloads (calculated since 01 Dec 2017)

Cumulative views and downloads (calculated since 01 Dec 2017)

Viewed (geographical distribution)

Total article views: 204 (including HTML, PDF, and XML)

Thereof 202 with geography defined and 2 with unknown origin.

Country # Views %
  • 1

Saved

Discussed

Latest update: 16 Dec 2017
Publications Copernicus
Download
Short summary
Cohesive sediment (mud) is ubiquitous in the world’s coastal regions, but its behavior is complicated and often oversimplified by computer models. This paper describes extensions to a widely used open-source coastal ocean model that allow users to simulate important components of cohesive sediment transport.
Cohesive sediment (mud) is ubiquitous in the world’s coastal regions, but its behavior is...
Share