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Uav And Structure-From-Motion Photogrammetry Enhance River Restoration Monitoring: A Dam Removal Study, Alexandra D. Evans, Kevin H. Gardner, Scott Greenwood, Brett Still
Uav And Structure-From-Motion Photogrammetry Enhance River Restoration Monitoring: A Dam Removal Study, Alexandra D. Evans, Kevin H. Gardner, Scott Greenwood, Brett Still
New Hampshire EPSCoR
Dam removal is a river restoration technique that has complex landscape-level ecological impacts. Unmanned aerial vehicles (UAVs) are emerging as tools that enable relatively affordable, repeatable, and objective ecological assessment approaches that provide a holistic perspective of restoration impacts and can inform future restoration efforts. In this work, we use a consumer-grade UAV, structure-from-motion (SfM) photogrammetry, and machine learning (ML) to evaluate geomorphic and vegetation changes pre-/post-dam removal, and discuss how the technology enhanced our monitoring of the restoration project. We compared UAV evaluation methods to conventional boots-on-ground methods throughout the Bellamy River Reservoir (Dover, NH, USA) pre-/post-dam removal. We …
I’Ll Be Dammed! Public Preferences Regarding Dam Removal In New Hampshire, Natallia Leuchanka Diessner, Catherine M. Ashcraft, Kevin H. Gardner, Lawrence C. Hamilton
I’Ll Be Dammed! Public Preferences Regarding Dam Removal In New Hampshire, Natallia Leuchanka Diessner, Catherine M. Ashcraft, Kevin H. Gardner, Lawrence C. Hamilton
New Hampshire EPSCoR
Decisions about dams, like other environmental conflicts, involve complex trade-offs between different water uses with varying human and ecological impacts. Given the many upcoming dam decisions in New England, an improved understanding of public preferences is needed to steward resources. This research asks (1) What does the public want to see happen with dams? and (2) How do public preferences regarding dam removal vary with demography and politics? We address these questions using data from three random sample statewide telephone polls conducted in New Hampshire over 2018 that asked people for their preferences concerning dam removal versus maintaining dams for …
I’Ll Be Dammed! Public Preferences Regarding Dam Removal In New Hampshire, Natallia Leuchanka Diessner, Catherine Ashcraft, Kevin H. Gardner, Lawrence C. Hamilton
I’Ll Be Dammed! Public Preferences Regarding Dam Removal In New Hampshire, Natallia Leuchanka Diessner, Catherine Ashcraft, Kevin H. Gardner, Lawrence C. Hamilton
New Hampshire EPSCoR
Decisions about dams, like other environmental conflicts, involve complex trade-offs between different water uses with varying human and ecological impacts, have significant impacts on public resources, and involve many stakeholders with diverse and often conflicting interests. Given the many upcoming dam decisions in New England and across the United States, an improved understanding of public preferences about dam decisions is needed to steward resources in the public interest. This research asks (1) What does the public want to see happen with dams? and (2) How do public preferences regarding dam removal vary with demography and politics? We address these questions …
Acting Out Our Dam Future: Science-Based Role-Play Simulations As Mechanisms For Learning And Natural Resource Planning, Natallia Leuchanka Diessner, Catherine Ashcraft, Weiwei Mo, Cuihong Song, Lawrence C. Hamilton, Shannon Rogers, Kevin H. Gardner
Acting Out Our Dam Future: Science-Based Role-Play Simulations As Mechanisms For Learning And Natural Resource Planning, Natallia Leuchanka Diessner, Catherine Ashcraft, Weiwei Mo, Cuihong Song, Lawrence C. Hamilton, Shannon Rogers, Kevin H. Gardner
New Hampshire EPSCoR
Science often does not make its way into decisions, leading to a problematic gap between scientific and societal progress. To tackle this issue, our research tests a novel science-based negotiation simulation that integrates a role-play simulation (RPS) with a system dynamics model (SDM). In RPSs, stakeholders engage in a mock decision-making process (reflecting real-life institutional arrangements and scientific knowledge) for a set period. System dynamics models (SDMs) are visual tools used to simulate the interactions and feedback within a complex system. We test the integration of the two approaches with stakeholders in New England via a series of two consecutive …
Centring Fish Agency In Coastal Dam Removal And River Restoration, Caroline Gottschalk Druschke, Emma Lundberg, Ludovic Drapier, Kristen C. Hychka
Centring Fish Agency In Coastal Dam Removal And River Restoration, Caroline Gottschalk Druschke, Emma Lundberg, Ludovic Drapier, Kristen C. Hychka
New Hampshire EPSCoR
This article considers the agentic capacity of fish in dam removal decisions. Pairing new materialist explorations of agency with news media, policy documents, and interviews related to a suite of dam decisions in a New England, USA watershed, we identify the ways that river herring seem constrained through technocratic discourse to particular human-defined roles in dam removal discussions. We suggest, meanwhile, that existing human relationships with salmonids like brook trout might serve as a bridge for public stakeholders and restoration managers to recognise the agentic creativity of fish in dam removal and river restoration decisions.
Will Dam Removal Increase Nitrogen Flux To Estuaries?, Arthur J. Gold, Kelly Addy, Alisa Morrison, Marissa Simpson
Will Dam Removal Increase Nitrogen Flux To Estuaries?, Arthur J. Gold, Kelly Addy, Alisa Morrison, Marissa Simpson
New Hampshire EPSCoR
To advance the science of dam removal, analyses of functions and benefits need to be linked to individual dam attributes and effects on downstream receiving waters. We examined 7550 dams in the New England (USA) region for possible tradeoffs associated with dam removal. Dam removal often generates improvements for safety or migratory fish passage but might increase nitrogen (N) flux and eutrophication in coastal watersheds. We estimated N loading and removal with algorithms using geospatial data on land use, stream flow and hydrography. We focused on dams with reservoirs that increase retention time at specific points of river reaches, creating …