scholarly journals THE 2019 TEXAS COASTAL RESILIENCY MASTER PLAN

2018 ◽  
pp. 25
Author(s):  
Chris Levitz
Keyword(s):  
Coastal Management ◽  
Sediment Supply ◽  
Master Plan ◽  
Coastal Environments ◽  
Public And Private ◽  
Coastal Planning ◽  
Planning Effort ◽  
General Land Office ◽  
Private Entity ◽  
Coastal Hydrodynamics

In 2017, the Texas General Land Office (GLO) released the first Texas Coastal Resiliency Master Plan, an ambitious coastal planning effort to restore, enhance and protect more than 367 miles of coast and some 3,300 miles of bays and estuaries for the State of Texas. The lynchpin of the planning effort is its emphasis on shoring up the coast by using the latest coastal technology backed by research on Texas coastal environments, coastal hydrodynamics and morphology, and sediment supply, among others, in conjunction with federal, public, and private entity coordination. By championing a statewide Plan to guide the future of coastal management, the GLO will assure that Texas continues to restore, enhance, and protect its coastlines and communities.

scholarly journals Analysis of the Risk Management Process on the Development of the Public Sector Information Technology Master Plan

Information ◽  
2018 ◽  
Vol 9 (10) ◽  
pp. 248 ◽  
Author(s):  
Sérgio Andrade deFreitas ◽  
Edna Canedo ◽  
Rodrigo Santos Felisdório ◽  
Heloise Leão
Keyword(s):  
Risk Management ◽  
Public Sector ◽  
Information And Communication Technology ◽  
Communication Technology ◽  
Master Plan ◽  
Public And Private ◽  
The Public ◽  
Management Processes ◽  
Risk Management Process ◽  
Information And Communication

The Information and Communication Technology Master Plan—ICTMP—is an important tool for the achievement of the strategic business objectives of public and private organizations. In the public sector, these objectives are closely related to the provision of benefits to society. Information and Communication Technology (ICT) actions are present in all organizational processes and involves size-able budgets. The risks inherent in the planning of ICT actions need to be considered for ICT to add value to the business and to maximize the return on investment to the population. In this context, this work intends to examine the use of risk management processes in the development of ICTMPs in the Brazilian public sector.

scholarly journals Vulnerabilidade socioambiental como base para a gestão costeira no município de Paracuru – Ceará

2020 ◽  
Vol 13 (6) ◽  
pp. 2820
Author(s):  
Cristiano Da Silva Rocha ◽  
Fábio Perdigão Vasconcelos ◽  
Delano Nogueira Amaral ◽  
Maria Bonfim Casemiro ◽  
Otávio Augusto de Oliveira Lima Barra
Keyword(s):  
Social Media ◽  
Coastal Management ◽  
Social Vulnerability ◽  
Conservation Units ◽  
Coastal Planning ◽  
Environmental Vulnerability ◽  
Sample Unit ◽  
Intersection Area ◽  
Coastal Municipality

A geografia desempenha um papel importante quando existem trabalhos que tentam relacionar sociedade e natureza, estabelecendo formas (ou variáveis) para qualificar os elementos que compõem a paisagem. Neste trabalho, o objetivo foi aplicar a classificação da vulnerabilidade socioambiental adaptada de Medeiros e Souza (2016), com contribuições de Milanezi e Pereira (2016), como forma de contribuir com a gestão costeira de Paracuru- Ceará. Paracuru é um município costeiro, em que estão presentes diversos ambientes e três Unidades de Conservação Estaduais localizados no rio Curu e nas dunas de Paracuru. Para a análise, sobrepôs-se o mapa de vulnerabilidade ambiental (gerado a partir dos mapas de unidades geoambientais e de uso e ocupação) e de vulnerabilidade social, utilizando 17 variáveis incluídas no cálculo do índice organizados por setores censitários, menor unidade amostral. Foi observado trechos de vulnerabilidade socioambiental alta no setor próximo do rio Curu, na localidade de Santa Rita, com área de interseção de 2,3km² sede urbana localidade denominada de 2,3km² de interseção e setor 16, nas localidades de Muriti, Córrego do Curu e Pedrinhas, com interseção de aproximadamente 800 m². Nas dunas a sobreposição foi predominante de vulnerabilidade ambiental alta e vulnerabilidade social média – alta. Espera-se que as informações possam indicar os ambientes e seções da cidade que são mais suscetíveis e que essas áreas precisam de maior proteção. Socio-environmental vulnerability as a basis for coastal management in the municipality of Paracuru - CearáA B S T R A C TGeography makes an important role when there are works that try to relate society and nature, establishing forms (or variables) to qualify the elements that make up the landscape. In this work, the objective was to apply the classification of socio-environmental vulnerability adapted from Medeiros and Souza (2016), with contributions from Milanezi and Pereira (2016), as a way to contribute to the coastal management of Paracuru-Ceará. Paracuru is a coastal municipality, where there are several environments and three State Conservation Units located on the Curu River and on the Paracuru dunes. For the analysis, the map of environmental vulnerability (generated from the maps of geoenvironmental units and of use and occupation) and social vulnerability was superimposed, using 17 variables included in the calculation of the index organized by census sectors, the smallest sample unit. It was observed stretches of high socio-environmental vulnerability in the sector in the APA of the Curu River, in the locality of Santa Rita, with an intersection area of 2.3 km², in the urban headquarters, places called plateau da barra and secondary carnaubinha 3.1 km² intersection and sector 16, in the localities of Muriti, Córrego do Curu and Pedrinhas, with an intersection of approximately 800 m². In the dunes, the overlap was predominant of high environmental vulnerability and medium - high social vulnerability. It is hoped that the information can serve as a basis for indicating the paths that management should follow to achieve sustainability.Keywords: Landscape, socio-environmental vulnerability, coastal planning.

Beach Erosion Arising from Artificial Land Modification

2007 ◽  
Vol 2 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Takaaki Uda ◽  
Keyword(s):  
Land Management ◽  
Coastal Management ◽  
Scientific Research ◽  
Sediment Supply ◽  
Beach Erosion ◽  
Fluvial Sediment ◽  
The Public

The cause of beach erosion in Japan is classified into seven types. Of these, examples associated with the formation of wave-shelter zones and decreased fluvial sediment supply were studied, typified by changes in beaches at the Shimobara fishing port and along the Enshu-nada coast caused by decreased fluvial sediment supply from the Tenryu River. Such erosion is closely related to land management and the "sector-by-sector" system in Japan. The prevention of beach erosion thus requires both scientific research and improvement in coastal management through enhancing the public consensus.

The effects of fluvial and basal sediment properties on the morphodynamics of deltas undergoing sediment supply reduction

2020 ◽  
Author(s):  
Joshua Johnson ◽  
Daniel Parsons ◽  
Christopher Hackney ◽  
Douglas Edmonds ◽  
James Best
Keyword(s):  
River Sediment ◽  
Erosion Resistance ◽  
Sediment Supply ◽  
Coastal Environments ◽  
Land Area ◽  
Sediment Properties ◽  
Delta System ◽  
The Face ◽  
Sediment Reduction ◽  
Supply Reduction

<p>Deltas are home to hundreds of millions of people worldwide and form a key part of many coastal environments. Due to their low elevation, many deltas are threatened by sea level rise as well as direct human influences on flow and subsidence. Added to this, the volume of sediment exported by rivers to the coast has been reduced by around 1.4 billion tons per year, starving deltas of the building material needed to construct and maintain their valuable subaerial land in the face of these challenges. The calibre and cohesivity of sediment have both been shown to be important factors in determining the erosion, deposition and stability regimes within a delta system. However, it has not yet been shown how the qualities of river and substrate sediment affect how resilient deltas are to sediment reduction.</p><p>This study uses numerical modelling to investigate how the cohesivity of incoming river sediment and the erosion resistance of the delta’s substrate affect how deltas respond to a reduction in supplied sediment. Delft3D was used to create a series of stable deltas with varying fluvial and basal sediments, that where then exposed to sediment reduction. The loss of land area, change in channel geometry and other metrics where extracted from model output using Matlab to assess the effects of this sediment reduction, and how these effects varies between deltas.</p>

Coastal environments and oil spill residues in Chedabucto Bay, Nova Scotia

1976 ◽  
Vol 13 (7) ◽  
pp. 908-928 ◽  
Author(s):  
E. H. Owens ◽  
M. A. Rashid
Keyword(s):  
Nova Scotia ◽  
Oil Spill ◽  
Littoral Zone ◽  
Wave Activity ◽  
Sediment Supply ◽  
Chemical Degradation ◽  
Coastal Environments ◽  
Sediment Removal ◽  
Natural Processes ◽  
Physical And Chemical

Investigations following the oil spill from the tanker ARROW in Chedabucto Bay, Nova Scotia, in 1970 have focussed on the physical and chemical degradation of the Bunker C oil in different littoral environments and on the effects of sediment removal to restore polluted beaches. Natural processes have restored the beaches effectively on coasts exposed to wave activity. In sheltered, low-energy areas, the oil has undergone relatively little change over the 3-year period and is still present in the littoral zone. The removal of contaminated sediments from exposed beaches has not caused major changes but has resulted in permanent retreat of the beach crest in areas of limited sediment supply.

A SYSTEM-OF-SYSTEMS FRAMEWORK FOR PUBLIC-PRIVATE PARTNERSHIP PROJECTS

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Rana Khallaf ◽  
Makarand Hastak
Keyword(s):  
Systems Engineering ◽  
Complex Form ◽  
System Of Systems ◽  
Public Private Partnership ◽  
Emergent Properties ◽  
Public And Private ◽  
Private Partnership ◽  
Contractual Relationship ◽  
Private Entity ◽  
Systems Framework

Public-private partnership projects are a complex form of megaprojects since they include a close-knit long-term contractual relationship between a public and private entity. Studying a PPP project as a monolithic system often leads to disregarding the emergent properties that occur from the interdependency between the subsystems. Hence there is a need for providing a framework for analyzing PPPs using the systems engineering approach. This paper proposes the adoption of a System-of-Systems (SoS) approach to analyzing PPP projects and proposes a framework for it. A top-down approach is used to identify the key components and their interrelationships. The analysis presented in this paper reveals the SoS taxonomy and lexicon for a PPP project and the hierarchical levels under it. The findings provide a step towards effectively analyzing the relationship within and across the various systems. They are expected to assist researchers in understanding and simulating the dynamics between the different subsystems.

Exploring the role of vegetation and sediment supply to coastal dune states using integrated process-based modelling

2020 ◽  
Author(s):  
Susana Costas ◽  
Katerina Kombiadou ◽  
Dano Roelvink
Keyword(s):  
Coastal Management ◽  
Coastal Dune ◽  
Sediment Supply ◽  
Vegetation Coverage ◽  
Maximum Efficiency ◽  
Ecological Processes ◽  
Morphological Response ◽  
Shoreline Position ◽  
Coupled Modelling ◽  
Dune Morphology

<p>Coastal dune morphology is largely controlled by the availability of sand to be transferred from the beach and the capacity of the vegetation to trap and retain the moving sand grains. The resultant coastal dune morphology is, in turn, key to achieve maximum efficiency of nature-based solutions that plan the construction of such aeolian features. Therefore, developing approaches that integrate key processes becomes crucial, especially in order to efficiently design and test solutions that meet the timescale requirements of coastal management. The process-based XBeach-Duna model has been developed to integrate nearshore, aeolian and ecological processes across the beach-dune profile, thus allowing long-term simulation of complex coastal features and feedbacks. Here, we explore the potential of this coupled modelling solution to simulate the morphological response of coastal dunes to changes in sediment supply and vegetation cover over decadal timescales. Simulations show the capacity of the approach to reproduce the natural response to changes in sediment supply, shifting the shoreline position and simultaneously modifying the overall shape of the dune, within a range of dimensions that are in agreement with observations. In general, narrow and low dunes are formed under high supply conditions, wide and high dunes develop if sediment supply is low and the shoreline position stable, while narrower and higher dunes are created after a relative drop in sediment supply that induces a negative budget. Denser vegetation coverage, on the other hand, favours taller dune morphologies, however the influence of sediment supply and receding shoreline positions to plant growth are non-linear and, in turn, produce feedbacks that cascade to the morphology of the dune itself. These results demonstrate the capacity of the approach to reproduce different dune states, resulting from alternative evolutionary pathways, and its potential to identify coastal dune (in)stability domains and critical morphological shifts, factors that are key to better understand the efficiency of dunes as nature-based solutions for coastal management.</p><p>This work was supported by the project PTDC/CTA-GFI/28949/2017, funded by the Portuguese Foundation for Science and Technology.</p>

Can we avoid coastal squeeze through nature-based coastal adaptation?

2020 ◽  
Author(s):  
Mark Schuerch ◽  
Tom Spencer ◽  
Stijn Temmerman ◽  
Matthew Kirwan
Keyword(s):  
Ecosystem Services ◽  
Sea Level Rise ◽  
Sea Level ◽  
Coastal Management ◽  
Coastal Wetlands ◽  
Coastal Wetland ◽  
Global Scale ◽  
Sediment Supply ◽  
Natural Habitats ◽  
Coastal Squeeze

<p>Intertidal coastal wetlands, including tidal marshes and mangrove forests, are at risk of disappearing under the influence of global sea level rise (SLR). Loss of their ecosystem services could significantly impact global carbon budgets, increase coastal erosion and flooding and lead to loss of fisheries, particularly along densely populated coastal zones such as large estuaries and deltas. Regional to global-scale projections suggest a reduction in present-day coastal wetland area by 20% to 90% in response to projected rates of future SLR. Recent studies have highlighted the importance of coastal squeeze, i.e. the inhibition of inland migration of tidal coastal wetlands due to the existence of anthropogenic infrastructure, in combination with wetland loss due to sea level rise, which is aggravated by a global decline in coastal sediment supply.</p><p>Nature-based adaptation, consisting of the reservation or creation of space for inland wetland expansion, is widely regarded as a promising strategy to counteract coastal squeeze and create/restore natural habitats through inland migration. Based on global and regional modelling outputs, this paper discusses how different scenarios of global population growth, expected declines in global sediment supply, delta subsidence and various coastal management strategies impact on global areas of intertidal coastal wetlands, and coastal squeeze in particular. For example, we estimate that until the year 2100 up to 280,000 km<sup>2</sup> of coastal wetlands may be lost due to coastal squeeze. If strategically implemented on a regional to global scale nature-based solutions to coastal management could increase the global total area of intertidal coastal wetlands by up to 60%.</p><p>However our current understanding of this process is very limited, partly due to the limited field evidence in sedimentary archives (e.g. during the early Holocene where SLR were high). We argue that this is related to the combined effects of wetland inland migration and wetland drowning during periods of high SLR rates, raising the question as to whether or not future coastal wetland will be able to provide ecosystem services comparable to those of natural systems.</p>

scholarly journals Análise da dinâmica morfossedimentar no litoral de Paracuru – Ceará

2020 ◽  
Vol 13 (07) ◽  
pp. 3459
Author(s):  
Cristiano Da Silva Rocha ◽  
Fábio Perdigão Vasconcelos ◽  
Delano Nogueira Amaral ◽  
Maria Bonfim Casemiro ◽  
Adely Pereira Silveira ◽  
...  
Keyword(s):  
High Tide ◽  
Coastal Environments ◽  
Public And Private ◽  
Total Station ◽  
Depositional Processes ◽  
Movement Field ◽  
The Waves

As praias são os ambientes costeiros de primeira interação continente-oceano, apresentam por esse motivo dinâmica morfológica intensa, tornando as comunidades que residem e causam intervenções antrópicas, mais vulneráveis. Com base nisso, o presente trabalho tem por objetivo identificar processos erosivos e deposicionais no litoral de Paracuru, Ceará. Para isso, foram realizadas atividades de campo entre os anos de 2018 e 2019, para traçar perfis de praia e realizar a coleta de sedimentos na área de berma e do estirâncio; os perfis topográficos foram realizados utilizando estação total conforme técnicas apontadas por Borges (1977). Além disso, para corroborar os dados foi mapeada a variação da linha de costa usando movimento da linha costeira do DSAS. Foram realizadas atividades de campo nas praias Boca do Poço, praia do Farol, praia Carnaubinha e praia da Barra indicadas pela equidistância e proximidade da sede urbana. Os resultados revelaram que há processo erosivo conforme balanço sedimentar negativo nas praias do Farol, Carnaubinha e da Barra. Nas praias Boca do Poço e Praia do Farol, os imóveis públicos e privados apresentam-se em alguns casos na faixa de praia, que por vezes é tomada pelas ondas com influência da preamar. E nesse contexto, a inundação dos estabelecimentos pode causar prejuízos, tornando assim a análise necessária para contribuir com subsídios às decisões político-governamentais.  Analysis of morphosedimentary dynamics on the coast of Paracuru – Ceará A B S T R A C TThe beaches are the coastal environments of first continent-ocean interaction, for this reason they present intense morphological dynamics, making the communities that reside and cause anthropic interventions, more vulnerable. Based on this, the present work aims to identify erosive and depositional processes on the coast of Paracuru, Ceará. For this, field activities were carried out between the years 2018 and 2019, to draw beach profiles and collect sediment in the area of berm and styrene; the topographic profiles were made using a total station according to the techniques pointed out by Borges (1977). In addition, to corroborate the data, a variation of the coastline was mapped using the DSAS coastline movement. Field activities were carried out on the Boca do Poço beaches, Farol beach, Carnaubinha beach and Barra beach indicated by the equidistance and proximity to the urban headquarters. The results revealed that there is an erosive process according to a negative sedimentary balance on the beaches of Farol, Carnaubinha and Barra. On Boca do Poço and Praia do Farol beaches, public and private properties are in some cases on the beach strip, which is sometimes taken by the waves influenced by the high tide. And in this context, the flooding of establishments can cause losses, thus making the analysis necessary to contribute with subsidies to political-governmental decisions.Keywords: beaches, erosive processes, topographic profiles.

scholarly journals O processo de expansão urbana e seus impactos na Estação Ecológica de Ribeirão Preto, SP

2020 ◽  
Vol 42 ◽  
pp. e43
Author(s):  
Emanoele Lima Abreu ◽  
Sammy Dutra Saquy ◽  
Pedro Henrique de Godoy Fernandes ◽  
Silvia Cristina de Jesus ◽  
Adriana Maria Zalla Catojo
Keyword(s):  
Urban Expansion ◽  
Buffer Zone ◽  
Environmental Policies ◽  
Management Plan ◽  
Native Vegetation ◽  
Master Plan ◽  
Environmental Legislation ◽  
Public And Private ◽  
Private Interests ◽  
Land Cover Maps

Although the normative instruments of urban planning include the environmental impact assessment, there is a loosening of these laws due to public and private interests that have purposes contrary to environmental policies. In the municipality of Ribeirão Preto, coffee and sugarcane monocultures have contributed to the fragmentation of native vegetation, reducing it to 6% of the municipal area (4,200 ha). The Ecological Station of Ribeirão Preto (ESRP) is the larger native remnant (155 ha) and suffers pressures for being located in the urban environment. This work investigated the urban pressure in the Buffer Zone (BZ) and its relation to the changes in the  Master Plan (MP) and complementary laws.  The land cover maps  (2010 and 2017) were also analyzed in order to quantify the conversion of native forests to anthropic uses, showing an intense urban expansion in the BZ over the period analyzed. On the other hand, municipal urban environmental legislation has evolved seeing that the previous MP (dated from 1995) approached the environment in a very specific way, which was modified in the 2018 law, which attempts to integrate the urban zoning to the buffer zone in order to make land use compatible with the ESRP Management Plan.

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