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Wind-Modulated Western Maine Coastal Current And Its Connectivity With The Eastern Maine Coastal Current, Denghui Li, Zhengui Wang, Huijie Xue, Andrew C. Thomas, Ron J. Etter
Wind-Modulated Western Maine Coastal Current And Its Connectivity With The Eastern Maine Coastal Current, Denghui Li, Zhengui Wang, Huijie Xue, Andrew C. Thomas, Ron J. Etter
VIMS Articles
Using a high-resolution circulation model and an offline particle tracking model, we investigated variations of the Western Maine Coastal Current (WMCC) and its connectivity with the Eastern Maine Coastal Current (EMCC). The models showed that the weak, broad, and sinuous WMCC is generally southwestward with an offshore and a nearshore core, fed by the extension of the EMCC and runoff from the Penobscot and Kennebec–Androscoggin Rivers, respectively. A sea-level dome can form offshore of Casco Bay in late fall and early winter as the northeastward alongshore wind sets up a seaward sea-level gradient from the coast to meet the shoreward …
A Cycle Of Wind-Driven Canyon Upwelling And Downwelling At Wilmington Canyon And The Evolution Of Canyon-Upwelled Dense Water On The Mab Shelf, Haixing Wang, Donglai Gong, Marjorie A.M. Friedrichs, Courtney K. Harris, Travis Miles, Hao-Cheng Yu, Yinglong J. Zhang
A Cycle Of Wind-Driven Canyon Upwelling And Downwelling At Wilmington Canyon And The Evolution Of Canyon-Upwelled Dense Water On The Mab Shelf, Haixing Wang, Donglai Gong, Marjorie A.M. Friedrichs, Courtney K. Harris, Travis Miles, Hao-Cheng Yu, Yinglong J. Zhang
VIMS Articles
Submarine canyons provide a conduit for shelf-slope exchange via topographically induced processes such as upwelling and downwelling. These processes in the Wilmington Canyon, located along the shelf-break of the Mid-Atlantic Bight (MAB), have not been previously studied, and the associated hydrographic variability inside the canyon and on the adjacent shelf are largely unknown. Observations from an underwater glider deployed in Wilmington Canyon (February 27 - March 8, 2016), along with wind and satellite altimetry data, showed evidence for a wind-driven canyon upwelling event followed by a subsequent downwelling event. Next, a numerical model of the MAB was developed to more …
Freshwater Transport In The Scotian Shelf And Its Impacts On The Gulf Of Maine Salinity, Z. Wang, D. Li, H. Xue, A. C. Thomas, Yinglong J. Zhang, F. Chai
Freshwater Transport In The Scotian Shelf And Its Impacts On The Gulf Of Maine Salinity, Z. Wang, D. Li, H. Xue, A. C. Thomas, Yinglong J. Zhang, F. Chai
VIMS Articles
A 3D unstructured-grid ocean circulation model covering the continental shelf and coastal seas around New England is used to investigate freshwater transport (FWT) on the Scotian Shelf (SS) and its impact on the salinity in the Gulf of Maine (GoME). The model was first validated using observed elevation, velocity, temperature, and salinity at multiple locations, demonstrating generally high model skills. Intraseasonal variabilities of freshwater fluxes in 2017 and 2018 were then analyzed across different transects around SS and Browns Bank (BB). These indicated that the flow pattern in SS during 2017 was consistent with previous understanding: low salinity water flows …
A Geospatial Modeling Approach To Assess Site Suitability Of Living Shorelines And Emphasize Best Shoreline Management Practices, Karinna Nunez, Tamia Rudnicky, Pamela Mason, Christine Tombleson, Marcia Berman
A Geospatial Modeling Approach To Assess Site Suitability Of Living Shorelines And Emphasize Best Shoreline Management Practices, Karinna Nunez, Tamia Rudnicky, Pamela Mason, Christine Tombleson, Marcia Berman
VIMS Articles
The Shoreline Management Model (SMM) is a novel geospatial approach used to assess conditions along a shoreline, and recommend best management practices for defended and undefended shorelines. The SMM models available spatial data in order to identify areas where the use of living shorelines would be suitable to address shoreline erosion. The model was developed to support and inform decision-making by shoreline managers responsible for management of shoreline resources, shorefront property owners, and tidal habitat restoration actions. Recommended erosion control strategies are based on scientific knowledge of how shorelines respond to natural conditions and anthropogenic measures used to stabilize shorelines. …
Bifurcate Responses Of Tidal Range To Sea-Level Rise In Estuaries With Marsh Evolution, Xun Cai, Qubin Qin, Jian Shen, Yinglong J. Zhang
Bifurcate Responses Of Tidal Range To Sea-Level Rise In Estuaries With Marsh Evolution, Xun Cai, Qubin Qin, Jian Shen, Yinglong J. Zhang
VIMS Articles
The response of tidal range in tidal marshes under sea-level rise (SLR) is essential to the marsh resilience, but how tidal ranges respond to different marsh evolutions remains unclear. Here, we show the existence of bifurcate responses of tidal range to SLR using both numerical model and theoretical analyses. The tidal range tends to increase if marsh accretion keeps pace with SLR; otherwise, the tidal range tends to decrease. As tidal range plays the key role in marsh evolution, the interactions between changing tidal range and marsh evolution lead to positive feedback on marsh resilience. If the marsh accretion can …
Water Circulation Driven By Cold Fronts In The Wax Lake Delta (Louisiana, Usa), Q. Zhang, C. Li, W. Huang, Et Al
Water Circulation Driven By Cold Fronts In The Wax Lake Delta (Louisiana, Usa), Q. Zhang, C. Li, W. Huang, Et Al
VIMS Articles
: Atmospheric cold fronts can periodically generate storm surges and affect sediment transport in the Northern Gulf of Mexico (NGOM). In this paper, we evaluate water circulation spatiotemporal patterns induced by six atmospheric cold front events in the Wax Lake Delta (WLD) in coastal Louisiana using the 3-D hydrodynamic model ECOM-si. Model simulations show that channelized and inter-distributary water flow is significantly impacted by cold fronts. Water volume transport throughout the deltaic channel network is not just constrained to the main channels but also occurs laterally across channels accounting for about a quarter of the total flow. Results show that …
Enhancing Assessments Of Blue Carbon Stocks In Marsh Soils Using Bayesian Mixed-Effects Modeling With Spatial Autocorrelation — Proof Of Concept Using Proxy Data, Grace S. Chiu, Molly Mitchell, Julie Herman, Christian Longo, Kate Davis
Enhancing Assessments Of Blue Carbon Stocks In Marsh Soils Using Bayesian Mixed-Effects Modeling With Spatial Autocorrelation — Proof Of Concept Using Proxy Data, Grace S. Chiu, Molly Mitchell, Julie Herman, Christian Longo, Kate Davis
VIMS Articles
Our paper showcases the potential gain in scientific insights about blue carbon stocks (or total organic carbon) when additional rigor, in the form of a spatial autocorrelation component, is formally incorporated into the statistical model for assessing the variability in carbon stocks. Organic carbon stored in marsh soils, or blue carbon (BC), is important for sequestering carbon from the atmosphere. The potential for marshes to store carbon dioxide, mitigating anthropogenic contributions to the atmosphere, makes them a critical conservation target, but efforts have been hampered by the current lack of robust methods for assessing the variability of BC stocks at …