Browsing by Author "Ruggiero, Emma"
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Item Assessing living shoreline feasibility at a remote site influenced by ship wake: a case study at Pea Patch Island on the Delaware River(University of Delaware, 2021) Ruggiero, EmmaAnthropogenic stressors along estuarine systems lead to increased erosion and degradation of productive wetland habitat and endanger critical infrastructure and resources. Living shorelines (LSs) are a nature-based design solution that protect vulnerable coastal habitats and communities while maintaining a hydrological connection between land and waterbody. LSs are designed to enhance shoreline ecology and stability, buffer wave energy, and accrete shoreline sediments by establishing or acting in place of natural features that protect coasts. Currently, there is little guidance for how LSs may be designed to protect or enhance areas with atypical conditions, including those impacted by recurring ship wake and higher wave energy, or sites with remote access. This research reviews current LS applications in the state of Delaware and employs a preliminary version of the soon to be released Living Shoreline Feasibility Model (LSFM) created by the Partnership for the Delaware Estuary to assess the feasibility of a LS intervention on a small estuarine island (Pea Patch Island) along a major shipping route (the Delaware River) that experiences moderate wake and wind-driven wave energy. Results of the LSFM and site analysis are used to inform a LS design to be implemented in further experimentation on the island.Item Calculating the Environmental Impacts of Low-Impact Development Using Long-Term Hydrologic Impact Assessment: A Review of Model Applications(Land, 2023-03-04) Cai, Zhenhang; Zhu, Rui; Ruggiero, Emma; Newman, Galen; Horney, Jennifer A.Low-impact development (LID) is a planning and design strategy that addresses water quality and quantity while providing co-benefits in the urban and suburban landscape. The Long-Term Hydrologic Impact Assessment (L-THIA) model estimates runoff and pollutant loadings using simple inputs of land use, soil type, and climatic data for the watershed-scale analysis of average annual runoff based on curve number analysis. Using Scopus, Web of Science, and Google Scholar, we screened 303 articles that included the search term “L-THIA”, identifying 47 where L-THIA was used as the primary research method. After review, articles were categorized on the basis of the primary purpose of the use of L-THIA, including site screening, future scenarios and long-term impacts, site planning and design, economic impacts, model verification and calibration, and broader applications including policy development or flood mitigation. A growing body of research documents the use of L-THIA models across landscapes in applications such as the simulations of pollutant loadings for land use change scenarios and the evaluation of designs and cost-effectiveness. While the existing literature demonstrates that L-THIA models are a useful tool, future directions should include more innovative applications such as intentional community engagement and a focus on equity, climate change impacts, and the return on investment and performance of LID practices to address gaps in knowledge.Item Historic Fort DuPont Nature Trail(2019-01) Ruggiero, Emma