Papers
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Implementation of an early warning system in urban drainage infrastructures for direct discharges and flood risk management
Combined sewer systems are often unable to respond adequately to rising watervolumes draining from urban areas during rainfall events, resulting in frequentdirect discharges into receiving waters and floods, with severe environmentaland economic impacts. Despite stricter legislation on pollution control and floodrisk assessment, there are still some challenges regarding the development ofearly warning systems based on water quality issues and fully integrated models.An innovative, real-time urban warning system for flooding and pollution eventswas built for the Alcântara basin (the largest in Lisbon), to provide timelyinformation to wastewater management entities and to civil protection services.The platform provides real-time access to monitoring data and, based on 48-hourprecipitation forecasts, predicts the performance of the system through theintegrated use of mathematical models for both drainage network and estuary.Predictions are automatically compared and validated with on-line data. Thispaper presents the overall design of the system and main results obtained thusfar. The analysis of the system shows the ability of the integrated models torepresent the main spatial and temporal patterns observed, effectively predictingthe system response to precipitation events and estimating volumes dischargedinto the water bodies and their average pollution loads. Furthermore, the overall results strongly indicate UV-Vis spectra to be reliable for TSS and CODestimation in sewer systems.
Year: 2014
Number Pages:
p10.
Author(s): Matos, R.; Ferreira, F.; Matos, J. S.; Oliveira, A.; David, L. M.; Rodrigues, M.; Jesus, G.; Rogeiro, J.; Costa, J.; Mota, T.; Brito, R.; Póvoa, P.; David, C.; Santos, J.
Keywords: Urban floods; Wastewater systems; Real time monitoring; Uv-vis; Integrated modelling; Early warning systems
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Evaluation of single waves effects on the morphology evolution of a coastal lagoon inlet
In morphodynamic simulations of coastal lagoons should be included the several processes that contribute tosediment transport and consequently to bathymetric changes. The individual contribution of the tidal currents,waves, wind and rivers discharge should be considered to better characterize the study area evolution. In thework presented herein, an evaluation of single wave effects on the bathymetric changes of a coastal inlet ispresented, by neglecting the forcing of wind and rivers discharge in the numerical simulations and filtering thechanges produced by the tidal currents. The bathymetric changes, the residual sediment fluxes and thesedimentation rates induced by eight monochromatic waves at the inlet were analyzed. It was concluded that theinfluence of the simulated waves on the morphodynamics is restricted to the inlet and adjacent nearshore.Additionally, the changes in the bathymetry and residual sediment transport are strongly dependent on the waveheight forcing rather than on their frequency of occurrence. These conclusions emphasize the importance ofindependently analyze each wave, to better understand its impact in coastal systems dynamics.
Year: 2011
Number Pages:
1155-1159.
Author(s): Plecha, S.; Silva, P. A.; Oliveira, A.; Dias, J. M.
: Journal of Coastal Research
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Impact of seasonal bathymetric changes and inlet morphology on the 3D water renewal and residence times of a small coastal stream
The sustainable management of small, intermittent coastal systems is a challenging task due to the strongmorphological dynamics of their inlets, which causes hydrodynamics, morphodynamics and water renewal to behighly variable, at both seasonal and shorter time scales. This strong variability makes these coastal systems verysensitive to pollution events because the consequences of these events may differ significantly depending on thebathymetry at the time they occur. Here, a 3D modeling-based study of the water renewal variability of a smallcoastal system, the Aljezur stream, is presented, targeting 1) the impact of different measured bathymetricconditions, different seasonal forcings and processes included in its water renovation, and 2) the confirmation ofthe small role of light in the decay of fecal coliforms on the stream. The analysis is conducted for 4 distinctscenarios, including two real settings, using a 3D baroclinic model and an associated particle model. Resultsconfirm the major role of bathymetry on the residence times of the Aljezur stream, leading to 100% differences.Wind is shown to have a significant impact on the water renovation, as well as the instant of particle releasewithin the tidal cycle. A low permanence of particles in the upper layer of the water column, defined throughlaboratory experiments using the stream water, confirmed the small importance of light in promoting fecalbacteria decay in this stream.
Year: 2011
Number Pages:
1555 - 1559.
Author(s): Oliveira, A.; Rodrigues, M.; Fortunato, A. B.; Guerreiro, M.
: Journal of Coastal Research
Volume:
SI64.
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Designing Digital Preservation Solutions:A Risk Management-Based Approach
Digital preservation aims to keep digital objects accessible over long periods of time, ensuring the authenticity and integrity of these digital objects. In such complex environments, Risk Management is a key factor in assuring the normal behaviour of systems over time. Currently, the digital preservation arena commonly uses Risk Management concepts to assess repositories. In this paper, we intend to go further and propose a perspective where Risk Management can be used not only to assess existing solutions, but also to conceive digital preservation environments. Thus, we propose a Risk Management-based approach to design and assess digital preservation environments, including:·the definition of context and identification of strategic objectives to determine specific requirements and characterize which consequences are acceptable within the identified context;·the identification, analysis and evaluation of threats and vulnerabilities that may affect the normal behaviour of a specific business or the achievement of the goals and conformance to the requirements identified in the context characterization; and,·definition of actions to deal with the risks associated with the identified threats and vulnerabilities.We generalize and survey the main requirements, threats, vulnerabilities and techniques that can be applied in the scope of digital preservation.
Year: 2010
Number Pages:
4-17pp.
Author(s): Barateiro, J.; Antunes, G. J.; Freitas, F.; Borbinha, J. L.
: International Journal of Digital Curation
Editor: Digital Curation Centre
Volume:
Vol 5, No 1.
Keywords: Digital threats; Digital preservation
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Sensitivity analysis of a morphodynamic modelling system applied to a coastal lagoon inlet
This work investigates the recent morphological changes at the inlet of a complex coastal system (Ria de Aveiro lagoon, Portugal). This study was carried out usingbathymetric data analysis and numerical simulationsobtained with the 2DH morphodynamic modelling systemMORSYS2D. The present simulations considered only tidalforcing, and a sensitivity analysis was performed by tuningthe formula used to compute the sediment transports. Anon-uniform sediment grain size distribution for the Ria deAveiro inlet is considered in the numerical simulations,based on surveys performed in this area. The model resultsare analysed to assess if they resemble the observed trendsof erosion and deposition, as calculated from bathymetricdata. A quantitative analysis of the differences between thebathymetric changes obtained through surveys and thenumerical results over a period of 3 years consideringdifferent sediment transport formulations shows that theformulations of Ackers and White (1973) and Engelundand Hansen (1967) are the ones that best describe themorphodynamic changes driven by tides in the Ria deAveiro inlet.
Year: 2010
Number Pages:
275
Author(s): Plecha, S.; Silva, P. A.; Vaz, N.; Bertin, X.; Oliveira, A.; Fortunato, A. B.; Dias, J. M.
: Ocean Dynamics
Editor: Springer-Verlag
Volume:
60 (2).
Keywords: Morphodynamics . sensitivity analysis . tidal inlet .aveiro lagoon
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Addressing Digital Preservation: Proposals for New Perspectives
Digital preservation aims at maintaining digital objects accessibleover long periods of time, ensuring the authenticity and integrityof these digital objects. In this paper, we propose three differentapproaches to address the digital preservation problem. First, wesurvey the main requirements specific to the preservation arena.Next, we show how digital preservation can be approached as aspecific case of System of Systems Engineering. Then, weintroduce Enterprise Architecture as a framework which isregularly used to assist information systems design andmaintenance, but can also be applied to System of Systems andconsequently to digital preservation. Finally, in such complexenvironments, Risk Management is a key factor to assure thenormal behavior of systems along time. Thus, we propose a RiskManagement based approach to design and assess digitalpreservation environments, enclosing the definition of context andrequirements, and the identification of threats and vulnerabilities,to be used as the basis of the definition of actions to deal with therisks associated with those threats and vulnerabilities. Wegeneralize and survey the threats, vulnerabilities and techniquesthat can be applied in the scope of digital preservation.
Year: 2009
Author(s): Barateiro, J.; Antunes, G. J.; Borbinha, J. L.
Keywords: Interoperability; Data grids; Dependability; Digital preservation; Digital libraries
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Challenges on preserving scientific data with data grids
The emerging context of e-Science imposes new scenarios and requirements for digital preservation. In particular, the data must be reliably stored, for which redundancy is a key strategy. But managing redundancy must take into account the potential failure of component. Considering that correlated failures can affect multiple components and potentially cause a complete loss of data, we propose an innovative solution to manage redundancy strategies in heterogeneous environments such as data grids. This solution comprises a simulator that can be used to evaluate redundancy strategies according to preservation requirements and supports the process to design the best architecture to be deployed, which can latter be used as an observer of the deployed system, supporting its monitoring and management.
Year: 2009
Author(s): Barateiro, J.; Antunes, G. J.; Freitas, F.; Borbinha, J. L.
Editor: ACM
Keywords: Redundanct; Digital preservation; E-science; Data grids; Simulation
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Designing digital preservation solutions: a risk management based approach
Digital preservation aims at maintaining digital objects accessible over long periods of time, ensuring the authenticity and integrity of these digital objects. In such complex environments, Risk Management is a key factor to assure the normal behaviour of systems along time. Currently, the digital preservation arena commonly uses Risk Management concepts to assess repositories. In this paper, we intend to go beyond and propose a perspective where Risk Management can be used to assess existing solutions, but also to conceive digital preservation environments. Thus, we propose a Risk Management based approach to design and assess digital preservation environments, enclosing: (i) the definition of context and identification of strategic objectives to determine specific requirements and characterize which consequences are acceptable within the identified context; (ii) the identification, analysis and evaluation of threats and vulnerabilities that may affect the normal behaviour of a specific business or the achievement of the goals and conformance to the requirements identified in the context characterization; and, (iii) definition of actions to deal with the risks associated with the identified threats and vulnerabilities. We generalize and survey the main requirements, threats, vulnerabilities and techniques that can be applied in the scope of digital preservation.
Year: 2009
Author(s): Barateiro, J.; Antunes, G. J.; Freitas, F.; Borbinha, J. L.
Keywords: Digital preservation; Risk management
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Digital Preservation of Heterogeneous Data
Digital preservation aims at maintaining digital objects and making data accessible over long periods of time. The emerging context of e-Science imposes new scenarios and new requirements for digital preservation. This paper presents the main issues, current solutions and prominent projects for digital preservation and e-Science data management. Finally, it presents the problem to be addressed, the solutions to explore, the proposed methodology and expected contributions of the associated PhD work.
Year: 2009
Author(s): Barateiro, J.
Editor: IEEE Technical Committee on Digital Libraries
Volume:
Volume 5 Issue 2.
Keywords: Digital preservation; E-science
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Long-term data management and the safety of large civil engineering structures
Large civil engineering structures are continuously monitored to assure their structural safety. The Portuguese National Laboratory for Civil Engineering currently monitors several types of structures, likeconcrete dams, bridges or other transportation infrastructures. The consequences of a structural failure are potentially catastrophic, varying from lossof life or environmental damage to high economic impacts. The management and preservation of structural monitoring data is crucial to support decisions concerning the structural safety. However, preserving data also entails several risks and threats
Year: 2009
Author(s): Barateiro, J.; Santos, J.; Mata, J.; Borbinha, J. L.; Antunes, G. J.
Keywords: Digital preservation; Structural safety
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Comunicação
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Archiving Sensor Data - Applied to Dam Safety Information
The consequences of structural failures in large civil engineering structures are potentially catastrophic, varying from high economic impacts to unrecoverable environmental damage or loss of life. To prevent that, these structures can be continuously monitored, therefore the management and preservation of the resulting data is crucial to support decisions concerning structural safety. However, preserving data also entails several risks and threats, comprising strong safety requirements. This paper analyzes the scenario of civil engineering safety, presenting the current systems used at the Portuguese National Laboratory for Civil Engineering to manage and preserve sensor data. The main risks that can impede the digital preservation of data are discussed and a solution is proposed where sensor data is objectively described and packaged in order to be reused in the future. This includes controlling the extraction of data from the operational systems, describing the representation of data through a Metadata Registry, and package the context information using a METS aggregator.
Year: 2011
Number Pages:
27-32.
Author(s): Barateiro, J.; Antunes, G. J.; Manguinhas, H.; Borbinha, J. L.
Editor: University of California
Keywords: Workflow; Information management; Risk management; Digital preservation; Sensor data
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Control Objectives for DP: Digital Preservation as an Integrated Part of IT Governance
Digital Preservation, often seen as information management with a long-term mission, is recognized as an independent research area, but the field
Year: 2011
Number Pages:
10p.
Author(s): Becker, C.; Antunes, G. J.; Barateiro, J.; Vieira, R. J. C.; Borbinha, J. L.
Keywords: Maturity model; It governance; Digital preservation
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Integrated management of risk information
Today's competitive environment requires effective risk management activities to create prevention and control mechanisms to address the risks attached to specific activities and valuable assets. One of the main challenges in this area is concerned with the analysis and modeling of risks, which increases with the fact that current efforts tend to operate in silos with narrowly focused, functionally driven, and disjointed activities. This leads to a fragmented view of risks, where each activity uses its own language, customs and metrics. The lack of interconnection and holistic view of risks limits an organization-wide perception of risks, where interdependent risks are not anticipated, controlled or managed. In order to address the Risk Management interoperability and standardization issues, this paper proposes an alignment between Risk Management, Governance and Enterprise Architecture activities, providing a systematic support to map and trace identified risks to enterprise artifacts modeled within the Enterprise Architecture, supporting the overall strategy and governance of any organization. We propose an architecture where risks are defined through a XML-based domain specific language, and integrated with a Metadata Registry to handle risk concerns in the overall organization environment.
Year: 2011
Number Pages:
791-798.
Author(s): Barateiro, J.; Borbinha, J. L.
Keywords: Metadata registry; Enterprise architecture; It governance; Risk management
Info
Long-term Security of Digital Information
The Digital Preservation community is used to address digital preservation in a problem centric perspective, where the expected common solution is a dedicated Open Archival Information System Reference Model compliant system. In this paper we raise a new perspective to address digital preservation as a long-term information security problem ideally addressed in the origin by the initial information system that has created or makes direct use of the objects where, in some scenario, they can be better protected against several threats that can affect their future interpretation and reuse. In order to achieve this goal, we suggest the use of Risk Management processes in collaboration with Enterprise Architecture processes. The relations between these two processes are detailed, showing how each phase of one process can positively influence a phase on the other process. Finally, in order to illustrate this approach, we present a risk assessment of a scenario concerning dam structural safety information.
Year: 2011
Number Pages:
4.
Author(s): Barateiro, J.; Antunes, G. J.; Borbinha, J. L.
Keywords: Information systems; Digital preservation; Risk management; Information security
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Modeling Contextual Concerns in Enterprise Architecture
Enterprise Architecture approaches are used to provide rigorous descriptions of the organization-wide environment, manage the alignment of deployed services to the organization's mission, end ensure a clear separation of the concerns addressed in an architecture. Thus, an effective Enterprise Architecture approach assists in the management of relations and dependencies of any components of the organization environment and supports the integration and evolution of the architecture. However, the quality of that approach is strongly influenced by the precision of the architecture context description, a fact which is not always recognized. This paper focuses on the architecture context description and addresses the gap between the stakeholders' concerns and the resulting architecture. Based on a combination of established references and standards, we show how an explicit integration of the architecture context into the architecture model improves the linking of concerns and key elements of the architecture vision. We apply our approach to a subject of increasing concern in the Information Systems area: longevity of information. Digital preservation is an interdisciplinary problem, but existent initiatives address it in a very domain-centric way, making it impossible to integrate documented knowledge into an overall organization architecture. We analyze several references and models and derive a description of the architecture context and a capability model that supports incremental development through an explicit distinction between systems and their capabilities. The presented approach allows not just any organization to assess their current digital preservation awareness and evolve their architectures to address this challenge, but in particular demonstrates the added value of an explicit architecture context model in an Enterprise Architecture approach.
Year: 2011
Number Pages:
8p.
Author(s): Antunes, G. J.; Barateiro, J.; Becker, C.; Borbinha, J. L.; Vieira, R. J. C.
Keywords: Concerns; Stakeholder; Architecture context; Digital preservation; Capability; Enterprise architecture
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Modeling Digital Preser vation Capabilities in Enterprise Architecture
The rising awareness of the challenges of preserving information over the long term has led to a wealth of initiatives developing economic models, methods, tools, systems, guidelines and standards for digital preservation. The challenge of digital preservation is to assure that information nowadays coded and stored in digital formats can be read and be used in an unforeseen future. This is an interdisciplinary problem combining organizational and technical challenges. However, to date there is no unified view on how to approach the problem from a holistic perspective and align organizational and technical issues in a systems engineering approach. Organizations that aim to add digital preservation to their abilities generally have difficulties to assess their existing systems and what capabilities and components they are missing in order to address the needs of trustworthy information longevity.In this paper we present an approach that enables us to accommodate the concerns of digital preservation in Enterprise Architecture practice. We discuss key elements of a generic reference architecture for digital preservation and a capability model based on established domain-specific reference models. Distilling these knowledge sources into a consistent and coherent view allows baseline assessment and incremental capability development in typical IT governance scenarios where an IT architecture already exists. We illustrate this with the assessment of a government agency's existing capabilities and systems against emerging digital preservation requirements.
Year: 2011
Number Pages:
10p.
Author(s): Becker, C.; Antunes, G. J.; Barateiro, J.; Vieira, R. J. C.; Borbinha, J. L.
Keywords: Standards; It governance; Digital preservation; Enterprise architectue
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On the relevance of Enterprise Architecture and IT Governance for Digital Preservation
Digital Preservation has been recognized as a key challenge in providing trusted information and sustainable eGovernment services. However, there has been little convergence on aligning the technically oriented approaches to provide longevity of information in ever-changing technology environments, and the organizational problems that public bodies are facing, through a systematic framework that aligns organizational and technological issues in the social domain of eGovernment. In this paper, we discuss the relevance of Enterprise Architecture and IT Governance for digital preservation and analyze key frameworks for digital preservation from this viewpoint. We assess the coverage of the leading criteria catalog for trustworthy repositories in terms of Enterprise Architecture dimensions and in how far these criteria align with established Enterprise Architecture and IT Governance frameworks. We discuss the analysis process we were following and present key observations that result from our work. These point to a number of steps that should be taken in order to consolidate digital preservation approaches and frameworks and align them with established frameworks and best practice models in Enterprise Architecture and IT Governance.
Year: 2011
Author(s): Becker, C.; Barateiro, J.; Antunes, G. J.; Borbinha, J. L.; Vieira, R. J. C.
Keywords: Digital preservation; It governance; Enterprise architectue
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Previsão em Tempo Real da Circulação na Ria de Aveiro
A previsão operacional da hidrodinâmica da Ria de Aveiro pode contribuir para melhorar a gestão sustentada desta laguna, quer a nível dos usos frequentes (e.g., operações portuária, actividades de recreio, planeamento de trabalhos de campo), quer a nível de gestão da emergência (e.g., derrames de produtos tóxicos, inundações, naufrágios). Em caso de acidentes, esta previsão pode contribuir para a antecipação dos problemas ou para a optimização de meios na resolução dos mesmos. Neste contexto, implementou-se um sistema de previsão em tempo de real da circulação na Ria de Aveiro (RDFS-PT, http://ariel.lnec.pt). O modelo utilizado é tridimensional e calcula os níveis, velocidades, salinidades e temperaturas em 7 níveis na vertical. A utilização de malhas não-estruturadas permite uma resolução muito fina dos vários canais da Ria de Aveiro, alargando a aplicabilidade do sistema a problemas de pequena escala espacial. O modelo é forçado pela maré (a partir de resultados de um modelo regional), caudais fluviais (baseados em dados do SNIRH) e temperatura da água (baseada em dados do SNIRH e do IH). A plataforma computacional foi inicialmente desenvolvida no Centre for Coastal Margin Observation & Prediction (E.U.A), tendo sido adaptada no Laboratório Nacional de Engenharia Civil à costa Portuguesa, em colaboração com várias instituições de investigação nacionais. As previsões são produzidas e publicadas na internet automaticamente através de um conjunto de scripts. Esta comunicação apresenta o sistema de previsão, a sua validação e as suas potencialidades. Apresentam-se ainda desenvolvimentos em curso visando o alargamento do sistema à circulação acoplada ondas-correntes e a sua integração num sistema de gestão do risco.
Year: 2011
Number Pages:
310-315.
Author(s): Oliveira, A.; Rodrigues, M.; Fortunato, A. B.; Jesus, G.; Ribeiro, N. A.; Dodet, G.; Dias, J. M.
Info
Processes controling the water renewal and residence times in a morphologically dynamic coastal stream in the SW coast of Portugal
N/A
Year: 2011
Number Pages:
3 pp..
Author(s): Oliveira, A.; Rodrigues, M.; Fortunato, A. B.; Guerreiro, M.; Bruneau, N.
Info
Risk Assessment in Digital Preservation of e-Science Data and Processes
Risk is a constant in every area and at all levels of anyorganization, whether in a general context or in a specific activity,project or function. Risk Management comprises a set ofcoordinated activities to direct and control an organization withregard to risk. Risk Assessment is considered the most importantphase of Risk Management, which consists in identifying,analyzing and evaluating risks. Digital preservation
Year: 2011
Number Pages:
70-80pp.
Author(s): Canteiro, S.; Barateiro, J.
Editor: National Library Board Singapore & Nanyang Technology University
Keywords: E-science; Digital preservation; Risk assessment; Risk management
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Books
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Advances in Water Resources Technology and Management
N/A
Year: 1994
Author(s): Tsakiris, G.; Santos, M. A.
Editor: ******
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Tese de Doutoramento
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A dependability framework for WSN-based aquatic monitoring systems
Wireless Sensor Networks (WSN) are being progressively used in several applicationareas, particularly to collect data and monitor physical processes.Moreover, sensor nodes used in environmental monitoring applications, suchas the aquatic sensor networks, are often subject to harsh environmental conditionswhile monitoring complex phenomena. Non-functional requirements,like reliability, security or availability, are increasingly important and must beaccounted for in the application development. For that purpose, there is alarge body of knowledge on dependability techniques for distributed systems,which provides a good basis to understand how to satisfy these non-functionalrequirements of WSN-based monitoring applications. Given the data-centricnature of monitoring applications, it is of particular importance to ensure thatdata is reliable or, more generically, that it has the necessary quality.The problem of ensuring the desired quality of data for dependable monitoringusing WSNs is studied herein. With a dependability-oriented perspective,it is reviewed the possible impairments to dependability and the prominentexisting solutions to solve or mitigate these impairments. Despite the varietyof components that may form a WSN-based monitoring system, it is givenparticular attention to understanding which faults can affect sensors, howthey can affect the quality of the information, and how this quality can beimproved and quantified. Open research issues for the specific case of aquaticmonitoring applications are also discussed.One of the challenges in achieving a dependable system behavior is to overcomethe external disturbances affecting sensor measurements and detect thefailure patterns in sensor data. This is a particular problem in environmentalmonitoring, due to the difficulty in distinguishing a faulty behavior fromthe representation of a natural phenomenon. Existing solutions for failuredetection assume that physical processes can be accurately modeled, or thatthere are large deviations that may be detected using coarse techniques, ormore commonly that it is a high-density sensor network with value redundantsensors.This thesis aims at defining a new methodology for dependable data qualityin environmental monitoring systems, aiming to detect faulty measurementsand increase the sensors data quality. The framework of the methodology isoverviewed through a generically applicable design, which can be employed toany environment sensor network dataset.The methodology is evaluated in various datasets of different WSNs, where it isused machine learning to model each sensor behavior, exploiting the existenceof correlated data provided by neighbor sensors. It is intended to explorethe data fusion strategies in order to effectively detect potential failures foreach sensor and, simultaneously, distinguish truly abnormal measurementsfrom deviations due to natural phenomena. This is accomplished with thesuccessful application of the methodology to detect and correct outliers, offsetand drifting failures in real monitoring networks datasets.In the future, the methodology can be applied to optimize the data qualitycontrol processes of new and already operating monitoring networks, and assistin the networks maintenance operations.
Year: 2019
Author(s): Jesus, G.
Keywords: Aquatic monitoring; Machine learning; Fault detection; Data quality; Dependability
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Proposta de Sistema de Aviso Multicanal para Emergências
As autoridades de proteção civil precisam de avisar as populações em situações de perigo, deforma rápida, previsível e atempada. Esta necessidade é particularmente notada, em situaçõesde emergência, como os desastres naturais ou tecnológicos, quando se pretende informar apopulação numa determinada área, das ações que devem executar para limitar os danospotenciais.O envio do aviso à população é habitualmente feito através de contactos porta a porta,altifalantes, sirenes, telefones, rádio, televisão e muitos outros canais de comunicação.Todavia, o envio do aviso através de um único destes canais possui limitações, nãoconseguindo satisfazer todos os requisitos desejáveis.Para a resolução deste problema é proposta e especificada uma arquitetura modular parasistemas de aviso que permite integrar redes de aviso baseadas em distintos canais decomunicação, permitindo o envio do aviso, de forma integrada através de diversos canais. Aadoção desta arquitetura permite construir um sistema de aviso baseado em múltiplos canaisde comunicação, um sistema de aviso multicanal.Para mostrar as possibilidades da arquitetura foram especificadas redes de aviso baseadas emdois canais de comunicação distintos: SMS e televisão digital. Para cada rede de aviso foramidentificadas limitações e propostas soluções, nomeadamente para o aumento da rapidez noenvio do aviso, melhoria na seletividade do envio, utilização da língua preferida dodestinatário, aumento do volume de mensagens que é possível enviar em tempo útil eintrodução de mecanismos de autenticação do aviso.Em particular, foi feita a caraterização analítica de uma rede móvel celular em dois cenáriosde desastre para tentar compreender o comportamento de uma rede de aviso suportada emSMS. Os resultados mostram que o SMS pode ser utilizado nalgumas situações, dependendodo número de pessoas na zona de risco.
Year: 2013
Number Pages:
p222.
Author(s): Fernandes, J. P.
Info
Modelação de dados geográficos aplicada ao planeamento e gestão de recursos hídricos
A aprovação e implementação da directiva-quadro da água (DQA) e de outras directivas europeias associadas impuseram alterações significativas aos métodos de planeamento e gestão de recursos hídricos e também aos critérios de uso, gestão e partilha de informação geográfica, nomeadamente os que pautam o relato ao sistema europeu de informação sobre águas (WISE) e a contribuição para a infra-estrutura europeia de informação geográfica (INSPIRE).Neste trabalho apresenta-se o processo de desenvolvimento e implementação de um modelo de dados geográficos (MDG) de suporte ao planeamento e gestão de águas superficiais que considerou requisitos técnicos, funcionais e legais. Os requisitos técnicos e funcionais aplicados à informação geográfica foram determinados com base nas normas internacionais aplicadas à especificação de informação geográfica, nomeadamente as da organização internacional de normalização (ISO) e as da infra-estrutura europeia de informação geográfica (INSPIRE). Os requisitos legais foram determinados por diplomas legais europeus e portugueses que estabelecem as metodologias de planeamento e gestão, conjuntos de dados geográficos, métodos de classificação, fluxos de análise, simbologia de apresentação de dados, entre outros.Destacam-se quatro casos de utilização do MDG: i) produção cartográfica; ii) análise espacial e modelação hidrológica e hidráulica; iii) relato ao WISE; e iv) suporte aos produtos resultantes da elaboração dos planos de gestão de região hidrográfica (PGRH).A metodologia utilizada no desenvolvimento do MDG baseou-se nas normas ISO 19103 e 19109, que preconizam quatro fases de desenvolvimento: i) declaração do universo de discurso; ii) modelo conceptual; iii) modelo lógico e iv) modelo físico de dados. Após a implementação do MDG num sistema de gestão de bases de dados geográficos procedeu-se ao seu carregamento com dados, tendo sido testadas e descritas as funcionalidades oferecidas pelo desenho do MDG no âmbito da aplicação ao planeamento e gestão de recursos superficiais.
Year: 2012
Number Pages:
p268.
Author(s): Charneca, N.
Keywords: Águas superficiais; Modelação de dados geograficos
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On the stochastic characterization of regional droughts
N/A
Year: 1981
Author(s): Santos, M. A.
Editor: ******
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Dissertações de Mestrado
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PAC:MAN - SISTEMA DE GESTÃO AO RISCO DE ACIDENTES DE POLUIÇÃO EM ZONAS COSTEIRAS
O efeito da poluição por derrames acidentais nos ecossistemas costeiros motivou a procura e o desenvolvimento de abordagens para planeamento e resposta atempados à emergência com o intuito de proteger os recursos aquáticos. Os sistemas de monitorização da poluição e de modelação existentes são utilizados de forma independente durante acidentes deste âmbito sem a eficácia pretendida. A prevenção do risco de derrame é, habitualmente, feita via planos de contingência com base em estudos simplistas não refletindo o dinamismo da informação nem permitindo o alerta atempado dos gestores costeiros devido ao uso de tecnologia desatualizada.Os sistemas de gestão de risco, testados com sucesso em desastres ambientais e humanitários, demonstram ser soluções promissoras. A sua adequação permite criar sistemas de gestão de risco mais específicos, como riscos de poluição e gestão da resposta á emergência em zonas costeiras. Esta inovação permite conjugar a modelação costeira de vanguarda para análise de risco, a riqueza de informação ambiental existente para a definição de indicadores de condições propícias á ocorrência de derrames e as tecnologias de comunicação. Obtém-se como resultado um conjunto de meios de alerta precoce e resposta mais eficiente e benéfica do ponto de vista da segurança das populações, da capacidade de atuação dos gestores costeiros e da manutenção dos recursos naturais costeiros.A adaptação dos módulos do sistema de gestão de risco de acidentes por rotura de barragens SAGE-B permitiu conceber um novo sistema de gestão de risco de poluição em zonas costeiras que incluiu um sistema de alerta precoce resultante da aplicação dos modelos, um sistema de aviso associado e uma base de dados com os recursos em risco e os meios de resposta à emergência para a análise da vulnerabilidade na Ria de Aveiro, obtendo-se uma nova metodologia genérica de planeamento e resposta para riscos de poluição costeira.
Year: 2012
Number Pages:
p91.
Author(s): Sousa, C.
Keywords: Sistemas tempo-real; Sistemas de informação; Sistema de alerta e aviso; Sistema de gestão de risco
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Processo Iterativo de Migração de Dados
Com a evolução das tecnologias de informação, a migração de dados legados é essencial para garantir o correcto funcionamento das novas aplicações. A eficiência e correcção das aplicações depende, fortemente, da qualidade dos dados armazenados.A criação de processos de migração de dados através da implementação de Software específico é bastante complexa. Por isso, é fundamental disponibilizar mecanismos de apoio à realização de tarefas de tratamento e migração de dados.A framework Ajax disponibiliza vários operadores para limpeza e transformação de dados. Não sendo uma ferramenta exclusivamente orientada para a migração de dados, pretende-se que a sua utilização na migração de um projecto real permita validar a respectiva aplicação. Todas as lacunas dos operadores do Ajax podem, assim, ser preenchidas através do refinamento e extensão da lógica dos operadores, nomeadamente, no suporte à identificação de registos errados e ao carregamento incremental de dados nos sistemas alvo.No âmbito do projecto gestBarragens, desenvolveu-se um processo de migração que inclui o carregamento de um sistema de informação legado e vários sistemas simples relacionados com informação acerca da segurança de barragens de betão em Portugal.
Year: 2008
Author(s): Barateiro, J.
Keywords: Grafo; Limpeza de dados; Qualidade de dados; Etl; Migração
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Workflow modeling using UML, Declarative Tools and WEB2.0
Manual translation of UML diagrams to programmatic code is tedious anderror prone. Many CASE tools allow computer code to be generated fromClass Diagrams, but fewer, if any, allow the transformation of Activity Dia-grams (ADs) in executable and workflow defining computer code.Our project aims at:
Year: 2008
Author(s): Gamito, R.
Keywords: Isco; Uml; Workflow
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Programas de Investigação
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Digital coast: a scientific proposal for it- based research in coastal regions for the next decade
This document corresponds to the Research Program and associated Post-Graduation Program elaborated by the author in the scope of the process of certification for the functions of coordination of scientific research, according to Decree-Law no. 124/99, of April 20th. This Research Program identifies several research themes for the next decade related to the application of information technologies in coastal science and innovation of research. The selection of these themes is framed in the scientific national and international context, focused in particular in the activity of LNEC in this area through the research of the Information Technology in Water and Environment research group, led by the applicant, in collaboration with other divisions of the Hydraulics and Environment Department. After a brief overview of the theme and presentation of the rationale for the development of this work, the national and global context for the Program is presented, wrapping up with the presentation of the research strategy for the Information Technology in Water and Environment research group. From this strategy, the two research areas of this Habilitation Program are identified and briefly described. The first area is the creation and development of reliable, cross-scale, multi-process, on-demand coastal forecast framework for oceans to hydrographic basin application, from hydrodynamics to biogeochemistry. The second area is the creation and development of intelligent, high-resolution, user centered and inclusive coastal digital twins. The two following chapters present the state-of-the-art in these two areas, the challenges to be overcome and the general roadmaps for the tools to be developed in the next decade to address the societal challenges in the coastal regions. The two Research Studies are presented next, organized along 19 projects. For each project, the applicant presents the rationale behind it, along with its goals, describes the methodologies for its implementation and the results to be generated. The resources necessary for its implementation along with the expected partnerships and adequate funding sources are also described. Finally, the Post-Graduation Program is presented, providing multiple M.Sc. and Ph.D. education opportunities framed in the previous Research Program. A total of 9 Ph.D. and 6 M.Sc. proposals are presented.
Year: 2022
Author(s): Oliveira, A.
Keywords: Collaboratories; Early-warning systems; Information quality and reliability; Data-based methodologies; Cross-scale modeling; Multi-process; Artificial intelligence; Hybrid forecast systems; Coastal Digital Twins
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Decision-support systems in water resources
N/A
Year: 1991
Number Pages:
152.
Author(s): Santos, M. A.
Editor: ******
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Relatório Científico
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CONNECT - Local coastal monitoring service for Portugal
This report proposes two cross-cutting methodologies for joint exploitation of information for monitoring and modeling in coastal regions taking advantage of the products developed and enhanced in the scope of the CONNECT project, namely the CONNECT coastal service (Rodrigues et al., 2024). The workflow for their implementation is demonstrated in the Tagus estuary taking advantage of the results of this project.The proposed cases are:1) a methodology for establishing forecast system grid limits based on the information provided by the in-situ and remote networks; and2) a methodology to support monitoring infrastructures.The analyses are conducted in a generic way, to be applied anywhere, and are then illustrated using the model forecasts and the in-situ and remote sensing data available at the CoastNet monitoring network (Castellanos et al. 2021; França et al. 2021). The demonstration sites, initially selected to be the Mondego estuary and Ria Formosa, were switched to the Tagus estuary. Indeed, while both the Tagus and the Mondego estuarieshave a similar in-situ network, their spatial scales are quite different (the Tagus estuary is much larger), and the application of the methodology using the available remote sensing data would be less effective in the Mondego. In the case of the Ria Formosa, in-situ data is not currently available for the relevant variables. Therefore, both methodologies will be demonstrated in the Tagus estuary.
Year: 2024
Author(s): Oliveira, A.; Rodrigues, M.; Fortunato, A. B.; Martins, R.; Jesus, G.
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A Cibersegurança em Portugal - Panorâmica organizativa e legislativa em 2022
As sociedades contemporâneas estão crescentemente dependentes das tecnologias de informação e de comunicação. Embora estas tecnologias tragam benefícios inegáveis às sociedades, aumentam as ameaças e os riscos que resultam da sua dependência. Por esse motivo têm sido tomadas medidas em Portugal para dotar o país de uma melhor resposta operacional a ciberataques. Sendo esta realidade pouco conhecida dos agentes da sociedade e da administração pública, este relatório apresenta uma panorâmica da situação atual da área de cibersegurança no plano organizativo e legislativo.
Year: 2023
Author(s): Fernandes, J. P.
Keywords: Cibersegurança; Ciberespaço; Risco; Ameaça
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Data management plan for the MOSAIC.pt project
This document presents the Data Management Plan (DMP) for the MOSAIC.pt project. MOSAIC.pt haschosen to participate in the Open Research Data pilot from FCT. Following the recommendationsprovided by the European Commission (EU, 2016), in the scope of making data FAIR, this DataManagement Plan (DMP) provides the approach to the following topics:
Year: 2020
Author(s): Oliveira, A.; Freire, P.
Keywords: Data Management Plan
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Sinergea
O projeto de I&D SINERGEA visa criar uma plataforma inteligente e inovadora de suporte àgestão integrada e otimizada da energia, da qualidade da água balnear e da inundação emcidades costeiras. Enquadrada no paradigma
Year: 2020
Author(s): Soares, A.; Rodrigues, H.; Nunes, J.; Oliveira, A.; David, L. M.; Rodrigues, M.; Jesus, G.; Fortunato, A. B.; Pinto, A.; Rogeiro, J.; Mendes, A.; Matos, J. S.; Santos Ferreira, F.; Barreiro, J.; Neves
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E6
In this report, we present a comparison of model performance indicators for severaloperational coastal forecast systems and structural engineering predictions and evaluationsexecuted in local workstations, in HPC cluster nodes and in a pilot cloud, aiming atcontributing to the best choice for the National Infrastructure for Scientific Computing.Results show that the scalability and flexibility of cloud computing resources makes theman attractive alternative for the implementation of multiple forecast systems using serial,non-MPI models, as well as for sensor data acquisition and processing applications.For MPI-based models, tests using cloud virtual machines with resources equal to or lowerthan the smaller physical bases performed well relative to the other resources. However, asthe cloud resources under testing did not reach the optimal number of processors for thepresent use cases, the HPC cluster remained the best option, as it fits better therequirements for the typical dimensions of computational grids for multi-scale (port toocean) analysis.Federated cloud resources allowed a better performance for small pool sizes, allowing thecombination of the processing power of several hosts. However, the performance doesscale very badly if the choice relies in any combination that uses many processes (by usingmany hosts or many processes within each host), even if we use resources with somehardware assistance.Further testing is still necessary to explore this possibility in detail, taking into account theneed to assure an adequate quality of service (QoS), especially to meet forecastingdeadlines and real-time streaming bandwidth.We conclude that an evolution from the current cluster setup to a cloud-based architecturewill satisfy most of our simulation requirements while offering a more flexible andaffordable computing environment.
Year: 2016
Author(s): Oliveira, A.; Rogeiro, J.; Azevedo, A.; Barateiro, J.; Rico, J.; Inês, A.
Keywords: Optimal performance; Numerical models; Forecast systems; Grid; Parallel computing; Cloud
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Execução do projeto PISCA
O presente relatório descreve a atividade realizada pelo Núcleo de Tecnologias da Informação em Engenharia Civil, no âmbito do processo
Year: 2016
Author(s): Barateiro, J.
Keywords: Ambientes distribuídos; Computação paralela
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ParFludan: Software paralelo para análise estrutural de elementos finitos
Ao longo dos anos recentes, a atividade desenvolvida nas áreas de engenharia tem-se apoiado cada vez mais na utilização de ferramentas de software apropriadas. Estas ferramentas são muitas vezes desenvolvidas especificamente para dar resposta a um problema muito bem definido, faltando-lhes a capacidade para resolver de forma eficiente problemas semelhantes computacionalmente mais exigentes. A paralelização destas ferramentas é uma das abordagens existentes para permitir aumentar a sua eficiência e aumentar a complexidade dos problemas admissíveis. Este relatório introduz o programa ParFludan, um programa paralelo para análise estrutural pelo método dos elementos finitos, que surgiu da necessidade de melhorar o desempenho do programa Fludan-RAS. Executado no cluster Medusa do LNEC, este novo programa permite tratar problemas de maior complexidade do que o original, com melhorias significativas ao nível dos tempos de execução. Além da descrição do processo de paralelização do programa original e das tecnologias para tal utilizadas, é também feita a análise do programa desenvolvido e são dadas instruções para a sua utilização, com o objetivo não só de facilitar a utilização do ParFludan como também deprovidenciar algumas linhas de orientação para a paralelização de outros programas em condições semelhantes.
Year: 2016
Author(s): Coelho, J.; Inês, A.
Keywords: Medusa; Análise estrutural; Elementos finitos; Paralelização
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Uso eficiente de memória em computação científica
A otimização de programas de computação científica é um problema extremamente relevante em engenharia pois uma otimização eficaz pode trazer ganhos de algumas ordens de grandeza em diversas dimensões: tempo de execução, memória utilizada, custo, precisão numérica, dimensão dos dados de entrada, tempo de programador, etc. Este relatório discute a otimização de memória e, em particular, pretende fornecer linhas de orientação para a otimização eficaz de um programa de computação científica em termos de memória. Descreve-se brevemente um modelo simples de um computador que permite compreender os conceitos mais relevantes da memória de um computador, e descrevem-se várias estratégias de otimização. Estas estratégias são discutidas e exemplificadas, e compiladas numa checklist com vista a ser percorrida e analisada aquando da otimização de memória de um programa de computação científica. É discutido um caso de estudo em que foi feita a análise dos objetivos da otimização e das características do programa. Feita esta análise foram escolhidas três estratégias da checklist que permitiram, com pouco esforço, resolver completamente o problema original.
Year: 2016
Author(s): Rico, J.; Inês, A.
Keywords: Computação científica; Otimização de programas; Memória
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Utilização do cluster Medusa a partir de ambiente Windows com o Eclipse
O LNEC mantém desde 2007 uma infraestrutura cluster, o Medusa, com o objectivo de proporcionar aos seus investigadores acesso a capacidades modernas de computação científica para resolução de problemas de engenharia. No entanto, algumas características do cluster têm atrasado a sua adoção generalizada pelos investigadores, sendo uma delas a necessidade de utilizar um ambiente Linux para interagir com o Medusa da forma convencional. Neste relatório é introduzida uma alternativa a esta forma convencional de utilização do Medusa, recorrendo ao ambiente de desenvolvimento integrado (IDE) Eclipse e à ferramenta Parallel Tools Platform (PTP), que permite evitar a interacção com o ambiente Linux e utilizar o cluster a partir de um ambiente mais familiar, como o Windows. A expetativa é que esta solução alternativa contribua para facilitar a transição dos investigadores para o Medusa, conduzindo a um melhor aproveitamento dos recursos computacionais disponíveis no laboratório e à exploração de novas possibilidades no domínio da resolução de problemas de cálculo complexos.
Year: 2015
Author(s): Inês, A.; Coelho, J.
Keywords: Eclipse; Computação paralela; Medusa
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Deliverable 4.3.5 Real-time monitoring and forecast platform to support early warning of faecal contamination in recreational waters
Controlling urban floods and managing direct discharges of effluents intoreceiving waters from combined sewer overflows (CSO) are two majorchallenges faced by urban water management utilities. Discharges from largecities can have significant environmental impacts on marginal water bodies,affecting the quality of life in general, and recreational activities in particular(Marsalek and Rochfort, 2004; David and Matos, 2005; Passerat et al., 2011).These impacts can be exacerbated by climate change. First, the growingmagnitude and frequency of extreme precipitation events (Groisman et al.,2005; Frei et al., 2006) will increase the number and severity of the discharges.Secondly, sea level rise and the resulting increase of salinity intrusion into thesewers can degrade the performance of wastewater infrastructures, affectinggate and pump operations and advanced biological wastewater treatmentprocedures.The ability to jointly manage an entire urban drainage and treatment system,towards an efficient and environmental-friendly operation of theseinfrastructures in a climate-change context, is often limited by the lack ofreliable real-time information. Existing information systems are frequentlydevoted to specific parts of the network, lacking synoptic and cross-domaindata. In addition, data and prediction tools are usually focused on physicalvariables alone. Water quality information is, at best, supported by verysimple modelling approaches and limited sensors. More often, thisinformation is sparse and not organized to provide efficient command andcontrol procedures, taking into account climate change effects in the variousdomains.Timely prediction and monitoring of environmental conditions, as well asanticipation of hazardous events, are essential parts of recreational watersmanagement. Monitoring and forecasting platforms can provide the necessaryinformation for safe and efficient economic activities, and the protection ofvaluable natural assets, including the preservation of ecosystems andrecreational areas.To this end, an innovative, real-time, coupled urban and estuarine platformwas developed to support the integrated water quality management ofwastewater systems, from the upstream catchment to the receiving waters.The platform efficiently integrates the monitoring and modelling of thedifferent physical and water quality processes from the catchment to thereceiving waters, at the appropriate spatial and temporal scales. It providesreal-time web access to on-line hydrodynamic and water quality monitoringnetworks and short-term model predictions, based on a coupled modellingsystem that includes relevant interactions between the urban drainage systemand the receiving waters, automatically compared with available on-linenetwork data. This innovative decision support tool for urban drainagesystems management is organized to provide tailor-made, automatic servicesto support the major operation tasks, drilled-down to the necessary details fordecision support.The forecasting engine behind the platform provides hydrodynamic andfaecal contamination predictions in all components of the systems (drainagenetwork, wastewater treatment plant and estuary), accounting for allinteractions between them. Prediction models are forced by regional forecastswhenever possible, and by real-time data otherwise. The accuracy of thepredictions is verified through continuous, automatic comparison with datafrom the innovative on-line monitoring network, including both physical andwater quality sensors (Rodrigues et al., 2014).Based on the platform
Year: 2014
Number Pages:
P18.
Author(s): Oliveira, A.; Rogeiro, J.; Jesus, G.; Fortunato, A. B.; David, L. M.; Rodrigues, M.; Costa, J.; Mota, T.; Gomes, J. L.; Matos, R. S.
Keywords: Real-time monitoring and forecast platform to support early warning of faecal contamination in recreational waters
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Outro
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PAC:MAN
O projecto PAC:MAN é coordenado pela Doutora Anabela Oliveira (LNEC) e inclui uma equipa de investigadores do Laboratório Nacional de Engenharia Civil (Instituição proponente), Centro Interdisciplinar de Investigação Marinha e Ambiental e Universidade de Aveiro. Este projecto tem como objectivos investigar: (i) os dados de acidentes passados para desenvolver e validar um conjunto de indicadores ambientais de condições atmosféricas e oceanográficas propícias à ocorrência de derrames; (ii) a capacidade e eficiência do sistema de modelação de elevada precisão para prevenção e previsão do risco de derrame, incluindo todos os processos de transformação de óleo na zona costeira; (iii) a fiabilidade, vantagens e escalabilidade de um sistema de alerta baseado em novas tecnologias móveis; e (iv) o modocomo estes vários aspectos inovadores podem ser integrados num sistema de gestão de risco para alerta precoce e aviso da ocorrência de derrames nas zonas costeiras. Na fase inicial do projecto foi feita a análise de dados in situ e de deteção remota para acidentes de poluição na plataforma continental Ibérica e zona costeira, para apoiar o desenvolvimento de indicadores de condições propícias à ocorrência de acidentes com embarcações que ultimamente poderão conduzir ao derrame de hidrocarbonetos. Estes indicadores foram validados para a Ria de Aveiro, a qual foi escolhida pela sua enorme importância ambiental e económica. Foi definido um conjunto de cenários, aos quais estão associados os resultados duma análise de vulnerabilidade local. Os cenários foram utilizados para avaliar a capacidade dos modelos detalhados de serem aplicados na análise de risco, e para desenvolver uma nova metodologia de prevenção deste tipo de riscos. Este sistema de modelação de derrames simula os processos relevantes em escalas adequadas e está acoplado com um sistema de modelação da circulação forçada conjuntamente por ondas, correntes evento. A metodologia proposta será a base para um sistema inovador de alerta precoce que combina de modo eficiente as condições ambientais propícias à ocorrência de acidentes com previsões detalhadas do percurso e da transformação das plumas de poluentes. Este sistema de alerta irá alimentar um sistema de aviso, o qual será analisado em termos de eficiência e escalabilidade para números crescentes de utilizadores. Os dois sistemas serão ligados através de um sistema de gestão do risco, adaptado para derrames a partir de um sistema proposto na literatura. Esta infra-estrutura incluirá uma base de dados dos elementos físicos em risco e dos recursos de resposta à emergência, e será customizado para a análise de vulnerabilidade daRia de Aveiro. O resultado final do projecto será uma nova metodologia de planeamento e resposta para riscos de poluição costeira genérica, baseada nas várias ferramentas e análises propostas.
Year: 2014
Number Pages:
24pp.
Author(s): Epifânio, B.
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PAC:MAN - Pollution accidents in coastal areas: a risk management system (ref. PTDC/AAC-AMB/113469/2009)
Os impactos dos derrames acidentais das últimas décadas têm impulsionado o desenvolvimento e a implementação de diversas abordagens para planeamento e resposta à emergência de poluição dos meios aquáticos, incluindo sistemas de monotorização da poluição e sistemas de modelação. Os sistemas de gestão d risco, que foram aplicados com sucesso para tsunamis e inundações de rotura de barragens, podem ser usados para providenciar um enquadramento para riscos de poluição que permita a proteção eficaz dos recursos costeiros.Os objetivos do projeto PAC:MAN são investigar: 1) os dados de acidentes passados para desenvolver e validar um conjunto de indicadores ambientais de condições atmosféricas e oceanográficas propícias à ocorrência de derrames; 2)a capacidade e eficiência de sistemas de modelação de elevada precisão para prevenção e previsão do risco de derrame, incluindo todos os processos de transformação do óleo na zona costeira; 3) a fiabilidade, vantagens e escalabilidade de um sistema de alerta baseado em novas tecnologias móveis; 4) a capacidade dos sistemas de tecnologias de informação para integrar e disponibilizar informação ambiental relevante sobre os elementos ecológicos em risco; e 5) o modo como estes vários aspectos inovadores podem ser integrados num sistema de gestão de risco para alerta precoce e aviso da ocorr~encia de um derrame nas zonas costeiras.
Year: 2014
Number Pages:
6pp.
Author(s): Boer, S.
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PAC:MAN - Pollution accidents in coastal areas: A risk management system (ref. PTDC/AAC-AMB/113469/2009)
Os impactos dos derrames acidentais das últimas décadas têm impulsionado o desenvolvimento e a implementação de diversas abordagens para planeamento e resposta à emergência de poluição e sistemas de modelação.Os sistemas de gestão de risco, que foram aplicados com sucesso para tsunamis e inundações de rotura de barragens, podem ser usados para providenciar um enquadramento para riscos de poluição que permita a proteção eficaz dos recursos costeiros. Os objetivos do projeto PAC:MAN são investigar:1) os dados de acidentes passados para desenvolver e validar um conjunto de indicadores ambientais de condições atmosféricas e oceanográficas propícias à ocorrência de derrames;2) a capacidade e eficiência de sistema de modelação de elevada precisão para prevenção e previsão do risco de derrame, incluindo todos os processos de transformação do óleo na zona costeira; 3) a fiabilidade, vantagens e escalabilidade de um sistema de alerta baseado em novas tecnologias móveis; 4) a capacidade dos sistemas de tecnologias de informação para integrar e disponibilizar informação ambiental relevante sobre os elementos ecológicos em risco; 5)o modo como estes vários aspectos inovadores podem ser integrados num sistema de gestão de risco para alerta precoce e aviso da ocorrência de um derrame nas zonas costeiras.
Year: 2014
Number Pages:
6pp.
Author(s): Rogeiro, J.
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Ficheiro de Substituição
N/A
Year: 2007
Author(s): Gamito, R.
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Risco e gestão de crises em vales a jusante de barragens
N/A
Year: 1998
Author(s): Quintela, A.; Pinheiro, A.; West, C.; Gamboa, M.
Editor: ******
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