scholarly journals Shoreline Stabilization with Experimental Groin Field(s): Modular Adjustable Permeable Groins

2018 ◽  
Author(s):  
Nicholas De Gennaro ◽  
Frank Gable
Keyword(s):  
South Carolina ◽  
Retention Rate ◽  
Coastal Zone Management ◽  
Cost Benefit ◽  
Cost Effective ◽  
The United States ◽  
Wave Climate ◽  
Shoreline Stabilization ◽  
Zone Management ◽  
Engineered Structures

This manuscript introduces prospective hard engineering solutions to continuous episodic erosional events on beaches utilized for recreation and tourism. The basis of this paper is information from a modeling study completed in 2011 on a two mile stretch of beach in South Carolina. The study utilized three alternative groin systems and a no groin option. The optimum spacing of the groin applications and the retention rate of a replenished beach at the location was determined based on running a computer model (Genesis) for the environmental conditions (wave climate, littoral transport, etc.) at the demonstration site. It was also determined that the innovative groin alternative presented in this paper would likely develop as the most effective cost/benefit relationship among the more conventional alternatives utilized in the United States. The experimental groin system (modular adjustable permeable groin(s) MAPG) was calculated to save initial construction costs by 25% to 30%as compared to the other alternatives. This was significant when considering that adjacent beach impacts are minimized and the beach berm is better protected over the typical beach re-nourishment cycle. This paper attempts to facilitate further discussion of regional sediment budget and (coastal zone) management by bridging the divide between choosing only sand nourishment vs. engineered structures. We demonstrate that reintroducing engineered structures in combination with beach nourishment can be a cost effective solution to episodic erosional events over time while allowing longshore sediment transport.

Perceptions of the performance of state coastal zone management programs in the United States

1996 ◽  
Vol 24 (2) ◽  
pp. 141-163 ◽  
Author(s):  
Robert W. Knecht ◽  
Biliana Cicin‐Sain ◽  
Gregory W. Fisk
Keyword(s):  
United States ◽  
Coastal Zone ◽  
Coastal Zone Management ◽  
The United States ◽  
Zone Management

scholarly journals RECESSION OF PREDOMINANTLY SANDY BLUFFS

2018 ◽  
pp. 78
Author(s):  
Mahsa Ghazian Arabi ◽  
Ali Farhadzadeh ◽  
Ali Khosravi
Keyword(s):  
Coastal Zone Management ◽  
Wave Climate ◽  
Wave Flume ◽  
Zone Management ◽  
Sand Bars ◽  
Past Half Century ◽  
Erosion Mechanisms ◽  
Incident Waves ◽  
Coastal Bluff ◽  
Important Progress

Climate change and sea level rise are anticipated to accelerate coastal erosion, a major societal issue during the past half-century (Hapke, et al., 2009). While important progress has been made in predicting sandy beach responses to various ocean climates, a similar progress has not been made for coastal bluffs. Coastal bluff recession is a natural process that can become a hazard when it endangers buildings and developed properties. Despite some early works on cohesive shoreline erosion mechanisms (Dalrymple, et al., 1986; Sunamura, 1985), prediction of bluff recession still remains one of the main questions in coastal zone management. Several experiment studies were conducted in wave flumes to investigate the effective parameter. Earlier experiments focused mainly on hard cliff and cohesive bluffs erosion in the 1970s, under normally incident waves and have been reported by Sanders (1968), Horikawa and Sunamura (1970), and Sunamura (1983). During the 1980s–1990s a number of studies were conducted to understand erosion of cohesive coastal profiles with or without an overlying veneer of sand (Nairn, 1986, and Skafel and Bishop, 1994). These works used artificial or prototype clays for the cliff and focused primarily on the erosion process of the clay at beach or foreshore. A recent study by Caplain et al. (2011) investigates the effect of wave climate on the rate of sandy cliff recession in a wave flume. They reported observations of sand movements, sand bars dynamics and cliff recession rate.

A Cost-Benefit Analysis of a Potential Supervised Injection Facility in San Francisco, California, USA

2016 ◽  
Vol 47 (2) ◽  
pp. 164-184 ◽  
Author(s):  
Amos Irwin ◽  
Ehsan Jozaghi ◽  
Ricky N. Bluthenthal ◽  
Alex H. Kral
Keyword(s):  
Public Health ◽  
United States ◽  
San Francisco ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Cost Effective ◽  
The United States ◽  
Local Public Health ◽  
Supervised Injection ◽  
Overdose Deaths

Supervised injection facilities (SIFs) have been shown to reduce infection, prevent overdose deaths, and increase treatment uptake. The United States is in the midst of an opioid epidemic, yet no sanctioned SIF currently operates in the United States. We estimate the economic costs and benefits of establishing a potential SIF in San Francisco using mathematical models that combine local public health data with previous research on the effects of existing SIFs. We consider potential savings from five outcomes: averted HIV and hepatitis C virus (HCV) infections, reduced skin and soft tissue infection (SSTI), averted overdose deaths, and increased medication-assisted treatment (MAT) uptake. We find that each dollar spent on a SIF would generate US$2.33 in savings, for total annual net savings of US$3.5 million for a single 13-booth SIF. Our analysis suggests that a SIF in San Francisco would not only be a cost-effective intervention but also a significant boost to the public health system.

scholarly journals A Multidisciplinary Approach for the Mapping, Automatic Detection and Morphometric Analysis of Ancient Submerged Coastal Installations: The Case Study of the Ancient Aegina Harbour Complex

2021 ◽  
Vol 13 (21) ◽  
pp. 4462
Author(s):  
Nikos Georgiou ◽  
Xenophon Dimas ◽  
Elias Fakiris ◽  
Dimitris Christodoulou ◽  
Maria Geraga ◽  
...  
Keyword(s):  
Morphometric Analysis ◽  
Multidisciplinary Approach ◽  
Coastal Zone Management ◽  
Cost Effective ◽  
Statistical Parameters ◽  
Remotely Operated Vehicle ◽  
Acoustic Data ◽  
Zone Management ◽  
Management Plans

The documentation of underwater cultural heritage (UCH) is the basis for sustainable maritime development including its protection, preservation, and incorporation in coastal zone management plans. In this study, we present a multidisciplinary, non-intrusive downscale approach for the documentation of UCH implemented on the coastal area of Aegina Island, Greece, where a unique submerged harbour complex is preserved. This approach succeeded in obtaining information that serves both geomorphological and archaeological purposes in a time- and cost-effective way, while obtaining information of centimeters to millimeters scale. The geomorphology of the area was mapped in detail through marine geophysical means while ancient submerged conical rubble structures and breakwaters were documented using automatic seafloor segmentation techniques, revealing previously unknown sites of archaeological interest. The structures’ parameters were extracted from the acoustic data to analyze their morphometry, while photogrammetry was realized using a Remotely Operated Vehicle to expose their micro-structure. The spatial distribution of the structures revealed the construction of a well-planned harbour complex with multiple passages and different possible functionalities. Finally, through the structures’ morphometric analysis (geometry and terrain statistical parameters) their preservation status was revealed, demonstrating the anthropogenic impact on the submerged ancient structures due to the modern harbor activity.

Shapefile for Coastal Zone Management Program counties of the United States and its territories, 2009 (CZMP_counties_2009.shp)

2013 ◽  
Author(s):  
Stephen R. Hartwell ◽  
Dana K. Wingfield ◽  
Alan O. Allwardt ◽  
Florence L. Wong ◽  
Frances L. Lightsom
Keyword(s):  
United States ◽  
Coastal Zone ◽  
Coastal Zone Management ◽  
The United States ◽  
Management Program ◽  
Zone Management

Virginia and Maryland, USA

2010 ◽  
pp. 131-144
Author(s):  
Marcia Berman ◽  
Catherine McCall
Keyword(s):  
United States ◽  
Chesapeake Bay ◽  
Coastal Zone ◽  
Coastal Zone Management ◽  
The United States ◽  
Management Program ◽  
Site Management ◽  
Management Structure ◽  
Chesapeake Bay Watershed ◽  
Zone Management

The Chesapeake Bay Watershed, the largest estuary in the United States, spans 62,000 square miles and includes six states and the District of Columbia. A stewardship agreement exists among the three primary states; Maryland, Virginia, and Pennsylvania that calls for a commitment to implement regulation and uphold practices that maintain or improve the Bay’s ecosystem as a whole. To meet these and other coastal challenges Virginia and Maryland have independently developed Internet based products through which data, maps, and information are served. This chapter will summarize some of the highlights of each state’s coastal web atlas. The type and format of resources available through each site will be reviewed. The user community will be defined. And a brief description of the site management structure will be presented. Both efforts have been spear- headed and supported by the states’ Coastal Zone Management Program, a program within the National Oceanic and Atmospheric Administration (NOAA).

The Delimitation of Lateral Seaward Boundaries Between States in a Domestic Context

1981 ◽  
Vol 75 (1) ◽  
pp. 28-68 ◽  
Author(s):  
Jonathan I. Charney
Keyword(s):  
United States ◽  
Continental Shelf ◽  
Coastal Zone Management ◽  
The United States ◽  
Outer Continental Shelf ◽  
Federal Funds ◽  
Coastal State ◽  
Energy Impact ◽  
Zone Management ◽  
Offshore Development

In 1976 the United States Congress established the Coastal Energy Impact Program (CEIP) for the purpose of giving financial assistance to those coastal states of the United States off whose shores resource development was being conducted on the outer continental shelf. The program was designed to alleviate the burden that offshore development was said to have placed on those coastal states. The enacting legislation stipulated that the states must comply with certain requirements of the Act in exchange for the distribution of federal funds. Although these funds were to be provided partly in the form of grants distributed on the basis of various statutory formulas, the largest amount of the grants was to be divided on the basis of adjacency. Thus, a coastal state would receive additional funds if the activity on the outer continental shelf took place in the area determined to be “adjacent” to that state. As a result, the geographical description of the areas “adjacent” to each coastal state had a direct impact on the amount of funds each state would realize from the program. Statutory provisions and the regulations required that adjacency be determined on the basis of lateral boundaries drawn in the ocean seaward from the coastal state. Those boundaries might already have been established on the basis of interstate agreements or court decisions. In the absence of such delimitations, the Assistant Administrator for Coastal Zone Management of the Department of Commerce National Oceanic and Atmospheric Administration was called upon to establish the “lateral seaward boundaries” on the basis of the international law applicable to lateral boundary delimitations. The “lateral seaward boundaries” so established by the Assistant Administrator would have no legal significance other than for CEIP purposes.

scholarly journals Integrated Methodological Approach for the Documentation of Marine Priority Habitats and Submerged Antiquities: Examples from the Saronic Gulf, Greece

2021 ◽  
Vol 13 (21) ◽  
pp. 12327
Author(s):  
Nikos Georgiou ◽  
Xenophon Dimas ◽  
George Papatheodorou
Keyword(s):  
Cultural Heritage ◽  
Coastal Zone ◽  
Marine Pollution ◽  
Methodological Approach ◽  
Coastal Zone Management ◽  
Cost Effective ◽  
Resource Exploitation ◽  
Zone Management ◽  
Marine Habitats ◽  
Anthropogenic Intervention

The rising human activities and resource exploitation have increased pressure in the coastal zone and the marine environment, risking the very existence of Marine Priority Habitats (MPH) and Underwater Cultural Heritage (UCH). The delimitation of these two priority areas in a time- and cost-effective way is essential for the sustainable management and exploitation of sea resources and natural-cultural heritage preservation. We propose an Integrated Methodological Approach for the Detection and Mapping of MPH and UCH. To achieve this, we used a downscale methodological approach of increasing spatial resolution based on three main methodological axes: (i) desk-based research, (ii) marine geophysics/seafloor classification, and (iii) in-depth visual inspection/3D mapping. This methodological scheme was implemented at the Saronic Gulf and focused on Aegina island. The methodology proposed, which combines existing and new techniques, proved successful in detecting and mapping the MPH and UCH in detail, while it compiled the information necessary for the establishment of Marine Spatial Planning (MSP) maps. Finally, the MSP map constructed for the Saronic Gulf demonstrated the lack of holistic coastal zone management plans due to impacts on UCH linked to anthropogenic intervention and the sparsity of marine habitats owing to marine pollution.

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