Use the search feature below to find Water Center supported products, including papers, videos, and fact sheets.Displaying 61 - 70 of 96
Fluctuating lake levels adds complexity to responsible planning in coastal communities. This video describes what happens to the coast as lake levels fluctuate, the implications for coastal communities, and the techniques the project team developed to help communities plan with fluctuating lake levels in mind.
Keywords: Great Lakes water levels, coastal communities, fluctuation, University of Michigan Water Center
Living shorelines show great promise in coastal South Carolina as a tool to control erosion, increase habitat, and protect coastal areas from hazards both short-term (e.g., storms) and long-term (e.g., sea level rise). The South Carolina Department of Natural Resources and the Ashepoo, Combahee, and Edisto (ACE) Basin National Estuarine Research Reserve have constructed oyster-reef-based living shorelines adjacent to public land for 15 years, and private property owners are also showing interest in using living shorelines to prevent erosion. Current South Carolina permitting processes, however, do not address this emerging strategy, which serves as a barrier for private property owners wishing to pursue this approach.
Blue carbon storage—carbon sequestration in coastal wetlands—can help coastal managers and policymakers achieve broader wetlands management, restoration, and conservation goals, in part by securing payment for carbon credits. The Waquoit Bay National Estuarine Research Reserve has been at the forefront of blue carbon research, working with end users to provide the information and tools needed to bring blue carbon projects to the carbon market. While end users are becoming more interested in the opportunities that carbon markets present, they are limited by uncertainties, particularly the potential transaction costs associated with bringing a wetland restoration project to market.
Nature-based, ecologically enhanced, or soft shoreline stabilization techniques have the potential to maintain and enhance important ecological services, provide greater resilience to physical forces, and be cost-competitive with traditional approaches. In order for these techniques to be used more widely in the Hudson River Estuary, their performance must be demonstrated and evaluated locally. Landowners, site designers, and decision makers have expressed this need to enhance their confidence in proposing innovative designs to clients, investing in sustainable shoreline construction, and steering permit applications toward these less traditional options.
Coastal restoration efforts are critical to restoring habitat, but projects are often carried out with little to no monitoring and evaluation of success. Without monitoring and evaluation, it is difficult to make comparisons across restoration designs to determine which are most functional, sustainable, and cost-effective. This reality, in combination with limited “best practices” resources for coastal restoration, significantly hinders project implementation.
Nature-based shoreline stabilization techniques have the potential to maintain and enhance important ecological services, provide greater resilience to physical forces, and be cost-competitive with traditional approaches. Over the past eight years, the Hudson River Sustainable Shorelines Project has engaged a regional team to develop the information and tools needed by regulators, engineers, and resource managers. These groups will identify the best settings and approaches for nature-based shoreline protection in the Hudson Estuary. Considerable knowledge is available about alternative techniques, current research, and regional conditions. However, there is a need to develop a common understanding of what resources are available, what is still needed, and how the review of proposed actions could be standardized.
The health of the Great Bay Estuary is strongly influenced by stressors from across the watershed. Seven rivers flow into the estuary, which is recessed 15 miles from the Atlantic Ocean. While science and case studies clearly demonstrate the value of vegetated buffers along these rivers in promoting a healthy estuary, New Hampshire does not yet consistently or effectively use buffers to protect the Great Bay Estuary. This project will enhance stakeholder capacity to make informed decisions on the protection and restoration of buffers around the Great Bay Estuary by addressing the following question: What are the options for addressing the challenges to effectively protect and restore buffer zones around New Hampshire’s Great Bay?
In estuaries worldwide, the loss of salt marshes and oyster reefs has been alarming, especially along high-energy coastlines. To dampen boat wake and wave stress, mitigate erosion, and restore oysters, managers are using more natural bank stabilization techniques—often referred to as living shorelines—adjacent to salt marsh edges. These efforts have been largely unsuccessful in achieving coastal management goals under the most destructive, high-energy conditions. This project will test the efficacy of a new strategy for protecting coastal habitat in high-energy environments. A research team will integrate engineering and ecological approaches by deploying “gabion-breaks,” a hybrid method for building living shorelines to protect and restore coastlines. Over three years, boat wake and wave energy, oyster reef development, and salt marsh edge movement will be monitored along reaches of shoreline with and without gabion-breaks.
Climate change will significantly affect coastal habitats as sea levels, storms, erosion, and water quality change. However, the impacts on different habitats in different locations will vary, and it is not clear how coastal managers should best protect vulnerable habitats such as marshes, seagrass beds, and dunes. A more complete understanding of risks could help coastal managers prioritize actions that could enhance the resilience of coastal habitats. A new tool has been developed, the Climate Change Vulnerability Assessment Tool for Coastal Habitats (CCVATCH), to help land managers, decision makers, and researchers develop conservation management, and restoration plans for coastal habitats. This assessment tool identifies primary sources of vulnerability to assist with prioritizing coastal habitat management actions.
In the most comprehensive study of Line 5 oil spill impacts publicly available, Dave Schwab presents three potential levels of oil discharge, measured in barrels (bbl), each containing 42 US gallons of oil, including 5,000 bbl, 10,000 bbl and 25,000 bbl in the report. Schwab simulated 840 hypothetical spill cases.