Greg Guannel

Greg Guannel
University of the Virgin Islands | UVI · Caribbean Green Technology Center

About

23
Publications
16,965
Reads
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2,026
Citations

Publications

Publications (23)
Article
Full-text available
Marine protected areas (MPAs) are increasingly being used globally to conserve marine resources. However, whether many MPAs are being effectively and equitably managed, and how MPA management influences substantive outcomes remain unknown. We developed a global database of management and fish population data (433 and 218 MPAs, respectively) to asse...
Article
Full-text available
Coastal protection of communities and property using “green infrastructure” approaches is gaining popularity as the science and practice improve. Guidance is limited for decision makers interested in taking action to protect shorelines. Here, we offer practical guidance for decision makers interested in moving beyond generalities for coastal protec...
Article
Full-text available
Recent calls for ocean planning envision informed management of social and ecological systems to sustain delivery of ecosystem services to people. However, until now, no coastal and marine planning process has applied an ecosystem-services framework to understand how human activities affect the flow of benefits, to create scenarios, and to design a...
Article
The undertow is one of the most important mechanisms for sediment transport in nearshore regions. As such, its formulation has been an active subject of research for at least the past 40 years. Still, much debate persists on the exact nature of the forcing and theoretical expression of this current. Here, assuming linear wave theory and keeping mos...
Article
Full-text available
The use of combined approaches to coastal adaptation in lieu of a single strategy, such as sea-wall construction, allows for better preparation for a highly uncertain and dynamic coastal environment. Although general principles such as mainstreaming and no- or low-regret options exist to guide coastal adaptation and provide the framework in which c...
Article
Full-text available
Many hope that ocean waves will be a source for clean, safe, reliable and affordable energy, yet wave energy conversion facilities may affect marine ecosystems through a variety of mechanisms, including competition with other human uses. We developed a decision-support tool to assist siting wave energy facilities, which allows the user to balance t...
Conference Paper
Background/Question/Methods Our oceans are peopled, and have been for thousands of years. Climate change and other human stressors are altering the ecosystems that have long supported livelihoods in coastal communities, yet our understanding of the ecology and management of coastal ecosystems still does not integrate human wellbeing, ecology and...
Article
Full-text available
People around the world are looking to marine ecosystems to provide additional benefits to society. As they consider expanding current uses and investing in new ones, new management approaches are needed that will sustain the delivery of the diverse benefits that people want and need. An ecosystem services framework provides metrics for assessing t...
Conference Paper
Background/Question/Methods The rugged west coast of Vancouver Island British Columbia, Canada boasts plentiful populations of fish and shellfish, pristine beaches for surfing, kayaking, and diving, and large ocean waves that can be harnessed for renewable energy. Some stakeholders are eager to expand coastal development to support tourism, renew...
Conference Paper
Background/Question/Methods Marine ecosystems produce a wide range of ecosystem services, including the provision of seafood from natural populations, beautiful places for tourism and recreation, shoreline protection, climate regulation, and cultural benefits. Basic research on how services vary across a region, how they might be affected by altern...
Conference Paper
Background/Question/Methods Understanding the role that living habitats play in the protection of coastal ecosystems and human communities has become increasingly important in the face of a changing climate and increased coastal development, yet we lack the predictive capacity needed for informed management. Previous, high profile studies that fo...
Article
Quasi-3D (Gacez-Faria et al., 2000) and full-3D (Newberger and Allen, 2007a and 2007b) models were tested against undertow data obtained in a fixed-bed laboratory beach. The quasi-3D model performs well in the breaking region, provided that depth-averaged undertow values are used in lieu of modeled wave and roller mass flux. In offshore regions, th...
Conference Paper
During the 2005 CROSSTEX laboratory experiments, a series of bar generation and degeneration events and repeated cycles of offshore and onshore transport were documented. These changes were driven by regular modifications to the specified incident wave field. Based on collected bathymetric data we first assessed the spatial and temporal movement of...
Conference Paper
Full-text available
The current paper reports a test of a coupled Boussinesq/bottom boundary layer model for cross-shore transport, applied under accretional wave conditions. Measurements of free surface elevation, fluid velocities and beach profile evolution were obtained during the CROSSTEX experiment carried out in summer 2005. The model calculations are conducted...
Article
Cross-shore sediment movement is responsible for most of the seasonal variability of beach profiles, yet the dynamics of this process are not well understood. Recently, extended energetics-based (Hoefel and Elgar, 2003), as well as boundary layer process-based (Henderson et al., 2004) numerical models have had some success in reproducing observed o...
Conference Paper
The design and construction of the Aquatic Capping Pilot Project by the multi-agency Los Angeles Basin Contaminated Sediments Task Force (CSTF) was discussed. The CSTF was established in 1998 with an aim for dredging and disposal of contaminated sediments from coastal waters in Los Angeles County. The project involved the dredging of 100,000 cubic...
Conference Paper
The relative importance of remote and local forcing on the subtidal response in Galveston Bay was studied using water level and wind data observed during the winter and spring months from 1997 to 2000. The study confirmed the importance of remote forcing through Eckman transport for the water level response and local forcing for the surface slope r...

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Projects

Projects (3)
Project
The The Virgin Islands Established Program to Stimulate Competitive Research (VI-EPSCoR) - The Ridge to Reef (R2R) project will address a number of questions such as how land use practices impact the health of coastal ecosystems, what additional factors impact the resilience of the Territory’s coral reefs, which factors are essential to the biodiversity of a coral reef ecosystem, and how biodiversity might impact the success of ecological restoration efforts. In addition, R2R provides funding to advance science literacy within the Virgin Islands and encourages STEM integration in the Territory’s schools and at the University of the Virgin Islands.
Project
Create awareness and facilitate engagement by various stakeholders in the Territory on the issues of hazard mitigation & resilience, and their roles in the recovery in the USVI