https://csdms.colorado.edu/csdms_wiki/api.php?action=feedcontributions&feedformat=atom&user=Dxy 2026-04-29T23:57:51Z User contributions MediaWiki 1.44.2 https://csdms.colorado.edu/csdms_wiki/index.php?title=2023_CSDMS_meeting-043&diff=436304 2023-03-08T19:36:45Z

<p>Dxy: Created page with &quot;{{CSDMS meeting personal information template-2023 |CSDMS meeting first name=Dongxiao |CSDMS meeting last name=Yin |CSDMS meeting institute=Virginia Institute of Marine Science |CSDMS meeting city=Gloucester Point |CSDMS meeting country=United States |CSDMS meeting state=Virginia |CSDMS meeting email address=dyin@vims.edu |CSDMS meeting phone=2258885338 }} {{CSDMS meeting select clinics1 2023 |CSDMS_meeting_select_clinics1_2023=1) What can CSDMS do for you? A clinic on C...&quot;</p> <hr /> <div>{{CSDMS meeting personal information template-2023<br /> |CSDMS meeting first name=Dongxiao<br /> |CSDMS meeting last name=Yin<br /> |CSDMS meeting institute=Virginia Institute of Marine Science<br /> |CSDMS meeting city=Gloucester Point<br /> |CSDMS meeting country=United States<br /> |CSDMS meeting state=Virginia<br /> |CSDMS meeting email address=dyin@vims.edu<br /> |CSDMS meeting phone=2258885338<br /> }}<br /> {{CSDMS meeting select clinics1 2023<br /> |CSDMS_meeting_select_clinics1_2023=1) What can CSDMS do for you? A clinic on CSDMS Products and Services<br /> }}<br /> {{CSDMS meeting select clinics2 2023<br /> |CSDMS_meeting_select_clinics2_2023=1) Introduction to Landlab<br /> }}<br /> {{CSDMS meeting select clinics3 2023<br /> |CSDMS_meeting_select_clinics3_2023=1) How to Route Flow in a Landscape with Landlab?<br /> }}<br /> {{CSDMS meeting abstract yes no 2023<br /> |CSDMS meeting abstract submit 2023=Yes<br /> }}<br /> {{CSDMS meeting abstract poster Epub 2023<br /> |CSDMS meeting poster Epub submit 2023=Poster<br /> }}<br /> {{CSDMS meeting abstract title temp2023<br /> |CSDMS meeting abstract title=A coupled benthic-pelagic biogeochemical model for estimating sediment-water exchange of particulates and solutes: sensitivity tests and application to the northern Gulf of Mexico<br /> |Working_group_member_WG_FRG=Marine Working Group, Coastal Working Group<br /> }}<br /> {{CSDMS meeting authors template<br /> |CSDMS meeting coauthor first name abstract=Linlin<br /> |CSDMS meeting coauthor last name abstract=Cui<br /> |CSDMS meeting coauthor institute / Organization=Virginia Institute of Marine Science<br /> |CSDMS meeting coauthor town-city=Gloucester Point<br /> |CSDMS meeting coauthor country=United States<br /> |State=Virginia<br /> |CSDMS meeting coauthor email address=lcui@vims.edu<br /> }}<br /> {{CSDMS meeting authors template<br /> |CSDMS meeting coauthor first name abstract=Courtney<br /> |CSDMS meeting coauthor last name abstract=Harris<br /> |CSDMS meeting coauthor institute / Organization=Virginia Institute of Marine Science<br /> |CSDMS meeting coauthor town-city=Gloucester Point<br /> |CSDMS meeting coauthor country=United States<br /> |State=Virginia<br /> |CSDMS meeting coauthor email address=ckharris@vims.edu<br /> }}<br /> {{CSDMS meeting authors template<br /> |CSDMS meeting coauthor first name abstract=Kanchan<br /> |CSDMS meeting coauthor last name abstract=Maiti<br /> |CSDMS meeting coauthor institute / Organization=Louisiana State University<br /> |CSDMS meeting coauthor town-city=Baton Rouge<br /> |CSDMS meeting coauthor country=United States<br /> |State=Louisiana<br /> |CSDMS meeting coauthor email address=kmaiti@lsu.edu<br /> }}<br /> {{CSDMS meeting authors template<br /> |CSDMS meeting coauthor first name abstract=Hannah<br /> |CSDMS meeting coauthor last name abstract=Beck<br /> |CSDMS meeting coauthor institute / Organization=Louisiana State University<br /> |CSDMS meeting coauthor town-city=Baton Rouge<br /> |CSDMS meeting coauthor country=United States<br /> |State=Louisiana<br /> |CSDMS meeting coauthor email address=hdye1@lsu.edu<br /> }}<br /> {{CSDMS meeting authors template<br /> |CSDMS meeting coauthor first name abstract=Julia<br /> |CSDMS meeting coauthor last name abstract=Moriarty<br /> |CSDMS meeting coauthor institute / Organization=University of Colorado Boulder<br /> |CSDMS meeting coauthor town-city=Boulder<br /> |CSDMS meeting coauthor country=United States<br /> |State=Colorado<br /> |CSDMS meeting coauthor email address=Julia.Moriarty@colorado.edu<br /> }}<br /> {{CSDMS meeting abstract template 2023<br /> |CSDMS meeting abstract=The sediment bed and the water column are tightly coupled in shallow water systems including large portions of the continental shelf. For instance, the continental shelf seafloor receives ~48% of the global flux of organic carbon to the seabed and the shelf benthic flux serves as a key source of nutrients for sustaining marine life. Observational studies of sediment-water exchange require concurrent measurements in both compartments; however, these are difficult to obtain and rarely available. Numerical modelling provides a valuable alternative approach to observational studies, however many previous modeling efforts used simple sediment-water parameterizations that did not capture the nonlinearities of benthic-pelagic coupling. Here, we present a coupled benthic-pelagic model that includes realistic representations of biogeochemical reactions in both compartments, and the fluxes at the interface. The model is built on the modeling algorithms for sediment-water exchange in ROMS and expanded to include carbonate chemistry and anerobic reactions in the seabed. The updated model is tested for three sites where benthic flux and porewater concentration measurements are available in the northern Gulf of Mexico summer hypoxic zone. Model-data comparison demonstrates the robustness of the calibrated model in reproducing the porewater concentration-depth profiles of O2, DIC, TA, NO3 and NH4, as well as the benthic fluxes of the former three. Further sensitivity experiments reveal that labile material input, bio-diffusion intensity and anerobic mineralization pathways are the three major factors regulating the benthic fluxes and porewater concentrations of O2, DIC and TA. To conclude, our model results provide important insights into the variation of sediment-water exchange under different environmental conditions. This model has the potential to be used as a research and management tool to quantify the role of shelf sediment in driving bottom water hypoxia and acidification over continental shelves.<br /> }}<br /> {{blank line template}}</div>

Dxy https://csdms.colorado.edu/csdms_wiki/index.php?title=User:Dxy&diff=436267 2023-03-04T04:15:30Z

<p>Dxy: Created page with &quot;{{Signup information member |First name member=Dongxiao |Last name member=Yin |Institute member=Virginia Institute of Marine Science |City member=Gloucester Point |Country member=United States |State member=Virginia |Confirm email member=dyin@vims.edu |Working group member=Marine Working Group, Coastal Working Group, Hydrology Focus Research Group, Coastal Vulnerability Initiative, Continental Margin Initiative, Modeling Platform Interoperability Initiative, River Networ...&quot;</p> <hr /> <div>{{Signup information member<br /> |First name member=Dongxiao<br /> |Last name member=Yin<br /> |Institute member=Virginia Institute of Marine Science<br /> |City member=Gloucester Point<br /> |Country member=United States<br /> |State member=Virginia<br /> |Confirm email member=dyin@vims.edu<br /> |Working group member=Marine Working Group, Coastal Working Group, Hydrology Focus Research Group, Coastal Vulnerability Initiative, Continental Margin Initiative, Modeling Platform Interoperability Initiative, River Network Modeling Initiative<br /> |Emaillist group member=yes<br /> |Memberagreement=I have read and agree to the Privacy Policy<br /> }}</div>

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