ENIDH – P – Pilotagem: navegação e segurança marítima
Permanent URI for this community
Browse
Browsing ENIDH – P – Pilotagem: navegação e segurança marítima by Title
Now showing 1 - 10 of 24
Results Per Page
Sort Options
- O Direito Marítimo e a necessidade da sua uniformização – alguns tópicos para reflexãoPublication . Faria, Duarte Lynce
- La economía circular y la educación como factores fundamentales para solucionar la contaminación marina por plásticos procedentes de los buquesPublication . Don Salgado, Alsira; Frade, João Carlos GomesLa conexión entre los Objetivos de Desarrollo Sostenible Nº4, Nº12 y la contaminación marina por plásticos radica en la necesidad de adoptar competencias de formación en contaminación marina y patrones de producción y consumo más responsables con el fin de reducir los plásticos procedentes de los buques, contribuyendo directamente a la mitigación de la contaminación en los océanos por parte de estos. Como punto de partida, en el presente artículo se trata de definir la basura marina plástica y abordar los problemas que causa en el medio ambiente. Posteriormente, se analiza la regulación de los desechos marinos procedentes de los buques haciendo hincapié en las medidas adoptadas por la Organización Marítima Internacional para regular la basura marina y su contribución a los citados Objetivos de Desarrollo Sostenible. Finalmente, como una posible solución a la reducción de la contaminación marina se lleva a cabo una comparativa entre la «Economía lineal» y la «Economía circular», concluyendo que un futuro sostenible pasa indefectiblemente por un modelo de educación de economía circular. [Abstract] The connection between Sustainable Development Goals No. 4, No. 12 and marine plastic pollution lies in the need to adopt training skills in marine pollution and more responsible production and consumption patterns to reduce plastics from ships, contributing directly to the mitigation of pollution in the oceans by them. As a starting point, this article seeks to define plastic marine litter and address the problems it causes in the environment. Subsequently, the regulation of marine waste from ships is analyzed, emphasizing the measures adopted by the International Maritime Organization to regulate marine litter and its contribution to the Sustainable Development Goals that appear with numbers 4 and 12. Finally, as a possible solution to reducing marine pollution, a comparison is carried out between the «Linear Economy» and the «Circular Economy», concluding that.
- Gestão dos Recursos da Ponte em pandemia COVID 19Publication . Frade, João Carlos GomesA segurança da navegação está regulamentada por diversas organizações, por forma a criar padrões seguros de operação. Adicionalmente, devido à pandemia, foram criadas orientações específicas para salvaguardar a saúde dos marítimos desta catástrofe mundial. A Gestão dos Recursos da Ponte é determinante para a segurança da navegação, garantindo assim a salvaguarda da vida dos marítimos e a proteção do meio ambiente. O fator humano é o elemento determinante para essa gestão, não só pelas competências técnicas dos marítimos, mas também pelas suas competências não-técnicas. A pandemia originou uma redução do tráfego marítimo, em particular no segmento dos navios de passageiros, contribuindo para a redução de encalhes e colisões, mas por outro lado, exigiu mais das competências não técnicas dos marítimos
- O Impacto da Cibersegurança no Quadro Jurídico Regulatório da Segurança Marítima.Publication . Faria, D. LynceOs conceitos de segurança marítima e de proteção marítima tiveram na sua base diferentes finalidades, objetos e perspetivas. Contudo, atualmente, as mesmas convenções internacionais aplicáveis aos transportes marítimos regulam ambas as vertentes. Na análise da maioria dos incidentes e acidentes no mar é bastante difícil delimitar as matérias de segurança e de proteção e, normalmente, após uma avaria, é inútil fazê-lo já que o planeamento e a resposta aos riscos são normalmente dados de forma integrada. Por outro lado, assiste-se a uma progressiva extensão do conceito de segurança marítima para englobar as matérias da proteção em simultâneo com o aparecimento de um novo tipo de ameaças que estão sempre presentes desde o momento que se ligam os computadores às redes em qualquer lugar do mundo: as ciberameaças! Estando os navios equipados com novas avançadas tecnologias, a proteção contra os ciberataques é mais importante do que nunca. Estes avanços tecnológicos tornaram-se um alvo fácil e de alta prioridade para os criminosos cibernéticos. Com este comportamento, podem prosseguir o seu propósito de atacar os sistemas do navio e, a partir deles, os diferentes sistemas em terra. A digitalização da indústria marítima ocorreu de forma muito rápida. Contudo, tornou-se essencial para os marítimos não só compreenderem e adotarem estas novas tecnologias como, igualmente, assumirem uma postura cautelosa e de alerta de em relação a certos acontecimentos e ocorrências que podem correr perigosamente mal num curto espaço de tempo. Vislumbra-se um novo estádio da prontidão marítima que necessita de um robusto e bem definido “código” que alargue e concretize um “novo” conceito de segurança marítima em sentido lato que reforce as convenções internacionais marítimas e a sua aplicação. As responsabilidades dos “Estados de Bandeira” e dos “Estados do Porto”, nos termos do disposto na Convenção das Nações Unidas sobre o Direito do Mar e das convenções internacionais marítimas como se estabelece nos diferentes Memorandos de Entendimento ao nível mundial e nos documentos da OMI e de outras organizações internacionais (como a União Europeia), deverão ser atualizadas e passarem a considerar, também, as matérias da proteção marítima. Para além disso, é essencial apoiar uma cooperação estreita nos campos da segurança marítima e da proteção tendo e vista a elaboração de um novo e robusto “Código Marítimo”. Esta será a linha de orientação prosseguida, pretendendo-se, neste momento, “agitar e rolar” esta matéria rumo a um novo estádio regulatório
- Implementing a blended learning approach to Maritime EnglishPublication . Wet, Mercia Christine deIn this paper I present the new blended learning approach we’ve implemented for Maritime English I at Escola Nautica Infante D. Henrique, with great success. Over the last few years we’ve identified a need to overhaul our Maritime English I course materials to achieve a number of objectives, namely to: • establish a fully integrated foundational ME course within which students acquire the relevant technical vocabulary whilst building upon their spoken and written fluency so that they are prepared to advance into the subsequent more specialized ME courses • find a way to combine the benefits of the practices and methodologies found in other types of ESP teaching with our special requirements • try to reach every student in a class where the proficiency levels range from level A1 to B2 • engage the millennial learner by modernizing course content and incorporating multimedia • let students access lectured course materials anytime, anywhere, and establish a channel of communication between lecturer and student, and between students themselves The answer lay in the development of an e-book, together with an online video lecture series, amongst others. The e-book attempts to bring ME to life for the millennial student, to contextualize maritime language through traditional text, and also through embedded quizzes, animations, and video and audio files. The e-book was developed with level A2-B1 in mind, and therefore contains the relevant grammar exercises, and conversation, reading comprehension, and listening activities that you’ll find in any ESP textbook, but they are always integrated with maritime language. The video lecture series is based on the book, with comprehensive explanations of the content. All the students can therefore access detailed lectures for self-study, and can do additional quizzes and exercises using this platform, which is available on any computer or mobile device in the form of a downloadable app. The result of this blended approach is an ME course which is comprehensive, engaging, and highly accessible.
- Long-Term Variability in Sea Surface Temperature and Chlorophyll a Concentration in the Gulf of CaliforniaPublication . López Martínez, Juana; Farach Espinoza, Edgardo Basilio; Cervantes, Hugo Herrera; García Morales, RicardoThe Gulf of California (GC) is the only interior sea in the Eastern Pacific Ocean and is the most important fishing area in the northwestern region of the Mexican Pacific. This study focuses on the oceanographic variability of the GC, including its southern portion, which is an area with a high flow of energy and exchange of properties with the Pacific Ocean (PO), in order to determine its role in physical–biological cycles and climate change. The purpose of this work is to analyze the sea surface temperature (SST) and chlorophyll a concentration (Chl-a) during the period from 1998–2022 as indicators of long-term physical and biological processes, oceanographic variability, and primary production in the GC. In total, 513 subareas in the GC were analyzed, and a cluster analysis was applied to identify similar areas in terms of SST and Chl-a via the K-means method and using the silhouette coefficient (>0.5) as a metric to validate the clusters obtained. The trends of the time series of both variables were analyzed, and a fast Fourier analysis was performed to evaluate cycles in the series. A descriptive analysis of the SST and Chl-a series showed that the SST decreased from south to north. Six bioregions were identified using a combined of both SST and Chl-a data. The spectral analysis of the SST showed that the main frequencies in the six bioregions were annual and interannual (3–7 years), and the frequencies of their variations were associated with basin-level weather events, such as El Niño and La Niña. The SST in the GC showed a heating trend at an annual rate of ~0.036 °C (~0.73 °C in 20 years) and a decrease in Chl-a at an annual rate of ~0.012 mg/m3 (~0.25 mg/m3 in 20 years), with potential consequences for communities and ecosystems. Additionally, cycles of 10–13 and 15–20 years were identified, and the 10–13-year cycle explained almost 40–50% of the signal power in some regions. Moreover, mesoscale features (eddies and filaments) were identified along the GC, and they were mainly associated with the clusters of the SST. All these spatial and temporal variabilities induce conditions that generate different habitats and could explain the high biodiversity of the GC. If the warming trend of the SST and the decreasing trend of the Chl-a continue in the long term, concerns could be raised, as they can have important effects on the dynamics of this important marine ecosystem, including habitat loss for numerous native species, declines in the catches of the main fishery resources, and, consequently, support for the arrival of harmful invasive species.
- A method to extract the Quaternion Ship Domain parameters from AIS dataPublication . Silveira, P.; Teixeira, A. P.; Soares, C. GuedesThe ship domain concept is of great interest for ship traffic modelling, risk assessment and intelligent collision avoidance. The paper proposes and applies a method to define AIS data-based empirical polygonal ship domains, based on traffic density matrices that are derived around each reference ship from an AIS dataset. A modified Quaternion Ship Domain allowing for different shapes for each quadrant is proposed, which results in a better fitting to the empirical domain. The parameters of Quaternion Ship Domains that best fit the empirical polygonal domains are determined for cargo ships and tankers of different lengths. Violations of the Quaternion Ship Domain are then used as an indicator of collision risk that is graphically represented in the study area, providing important information to support maritime traffic monitoring and control tasks.
- A multicriteria outranking approach for ship collision risk assessmentPublication . Silveira, P.; Figueira, J. R.; Teixeira, A. P.; Soares, C. G.The paper presents a judgmental expert-based process to assess the ship collision risk using the ELECTRE Tri-nC multiple criteria outranking method. The approach first establishes a set of criteria deemed important by navigation experts, all of them experienced nautical officers, to assess the collision risk between two ships in open waters. A deck of cards-based method is then used to determine the weights of each criterion, according to the experts’ preferences. Finally, risk categories chosen by the experts are characterised in terms of multiple reference scenarios, also provided by the experts, and the ELECTRE Tri-nC method is used to assign validation scenarios to the risk categories. The results are compared with the experts’ assessments of the collision risk for the same scenarios and also with the individual assessments made by three experts that have not participated in the development of the decision model.
- New physical and biological evidence of lateral transport affecting dinoflagellate cyst distribution in the benthic nepheloid layer along a land-sea transect off Figueira da Foz (Atlantic Iberian margin)Publication . García-Moreiras, I.; Hatherly, M.; Zonneveld, K.; Dubert, J.; Nolasco, R.; Santos, A. I.; Oliveira, A.; Moita, T.; Oliveira, P. B.; Magalhães, J. M.; Amorim, A.; Frontiers Media S.A.
- «
- 1 (current)
- 2
- 3
- »