In tidal wetlands, small differences in ground elevation can have a large impact on hydrology, vegetation, and habitat (e.g., assessment of wetland health and stability, habitat, flood risk, and coastal inundation).
Beatrice O'Hara of Delaware Geological Survey presented a poster titled "Sediment Carbon Stock, Accumulation Rates and Potential Erosion-Induced Carbon Emissions in the Delaware Bay Tidal Salt Marshes" at "The Earth's Carbon Cycle in the 21st Century: Climate, Ecosystems, and Energy," held April
A parameterization of tidal marsh inundation was developed for the 1,200 hectares of tidal marsh along the 12-km reach of the tidal Murderkill River between Frederica and Bowers Beach in Kent County, Delaware. A parsimonious modeling approach was used that bridges the gap between the simple and often used “bathtub model” (instantaneous inundation based on tides in Delaware Bay), and the more complex modeling of shallow overland that results in the wetting and drying of tidal marshes.
The University of Delaware's first Geospatial Research Day took place in the Trabant University Center on Thursday, Nov. 19. The free event highlighted the geospatial research being conducted at the University of Delaware and the ways in which UD community members are using geospatial technology.
The project supports work by the Kent County Levy Court (Kent County) to evaluate the nutrient TMDLS for the tidal portion of the Murderkill River. The project will contribute to a more robust parameterization of river-marsh interaction in the water-quality model that is being developed for the Murderkill River by Kent County. The purpose of the project is to characterize the spatial and temporal inundation of a salt marsh in the Murderkill River Estuary and to determine the feasibility of using heat as a tracer of flow to characterize inundation of other marshes in the estuary.