FN Archimer Export Format PT J TI 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 r1234) BT AF SHERWOOD, Christopher R. ARETXABALETA, Alfredo L. HARRIS, Courtney K. RINEHIMER, J. Paul VERNEY, Romaric FERRE, Benedicte AS 1:1;2:1;3:2;4:2,4;5:3;6:1,5; FF 1:;2:;3:;4:;5:PDG-ODE-DYNECO-DHYSED;6:; C1 US Geol Survey, 384 Woods Hole Rd, Woods Hole, MA 02543 USA. Coll William & Mary, Virginia Inst Marine Sci, Gloucester Point, VA 23062 USA. IFREMER, Plouzane, France. WEST Consultants, Bellevue, WA 98055 USA. UiT, CAGE Ctr Arctic Gas Hydrate Environm & Climate, Dept Geosci, N-9037 Tromso, Norway. C2 US GEOL SURVEY, USA VIRGINIA INST MARINE SCI, USA IFREMER, FRANCE WEST CONSULTANTS, USA UNIV TROMSO, NORWAY SI BREST SE PDG-ODE-DYNECO-DHYSED IN WOS Ifremer jusqu'en 2018 DOAJ copubli-europe copubli-int-hors-europe IF 5.154 TC 42 UR https://archimer.ifremer.fr/doc/00442/55319/56839.pdf https://archimer.ifremer.fr/doc/00442/55319/56840.pdf https://archimer.ifremer.fr/doc/00442/55319/56841.pdf https://archimer.ifremer.fr/doc/00442/55319/56842.pdf LA English DT Article AB 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 1234). These include the following: 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 noncohesive 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. PY 2018 PD MAY SO Geoscientific Model Development SN 1991-959X PU Copernicus Gesellschaft Mbh VL 11 IS 5 UT 000432185500001 BP 1849 EP 1871 DI 10.5194/gmd-11-1849-2018 ID 55319 ER EF