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Wind-Driven Dissolved Organic Matter Dynamics in a Chesapeake Bay Tidal Marsh-Estuary System

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dc.contributor.author Clark, J. B. en
dc.contributor.author Long, Wen en
dc.contributor.author Tzortziou, Maria en
dc.contributor.author Neale, Patrick J. en
dc.contributor.author Hood, Raleigh R. en
dc.date.accessioned 2017-09-28T09:01:22Z
dc.date.available 2017-09-28T09:01:22Z
dc.date.issued 2018
dc.identifier.citation Clark, J. B., Long, Wen, Tzortziou, Maria, Neale, Patrick J., and Hood, Raleigh R. 2018. "Wind-Driven Dissolved Organic Matter Dynamics in a Chesapeake Bay Tidal Marsh-Estuary System." <em>Estuaries and Coasts</em>. 41 (3):780&ndash;723. <a href="https://doi.org/10.1007/s12237-017-0295-1">https://doi.org/10.1007/s12237-017-0295-1</a> en
dc.identifier.issn 1559-2723
dc.identifier.uri https://hdl.handle.net/10088/33399
dc.description.abstract Controls on organic matter cycling across the tidal wetland-estuary interface have proved elusive, but high-resolution observations coupled with process-based modeling can be a powerful methodology to address shortcomings in either methodology alone. In this study, detailed observations and three-dimensional hydrodynamic modeling are used to examine biogeochemical exchanges in the marsh-estuary system of the Rhode River, MD, USA. Analysis of observations near the marsh in 2015 reveals a strong relationship between marsh creek salinity and dissolved organic matter fluorescence (fDOM), with wind velocity indirectly driving large amplitude variation of both salinity and fDOM at certain times of the year. Three-dimensional model results from the Finite Volume Community Ocean Model implemented for the wetland system with a new marsh grass drag module are consistent with observations, simulating sub-tidal variability of marsh creek salinity. The model results exhibit an interaction between wind-driven variation in surface elevation and flow velocity at the marsh creek, with northerly winds driving increased freshwater signal and discharge out of the modeled wetland during precipitation events. Wind setup of a water surface elevation gradient axially along the estuary drives the modeled local sub-tidal flow and thus salinity variability. On sub-tidal time scales (&gt;36 h, &lt;1 week), wind is important in mediating dissolved organic matter releases from the Kirkpatrick Marsh into the Rhode River. en
dc.relation.ispartof Estuaries and Coasts en
dc.title Wind-Driven Dissolved Organic Matter Dynamics in a Chesapeake Bay Tidal Marsh-Estuary System en
dc.type Journal Article en
dc.identifier.srbnumber 143762
dc.identifier.doi 10.1007/s12237-017-0295-1
rft.jtitle Estuaries and Coasts
rft.volume 41
rft.issue 3
rft.spage 780
rft.epage 723
dc.description.SIUnit SERC en
dc.description.SIUnit Peer-reviewed en
dc.citation.spage 780
dc.citation.epage 723

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