Volume 2, Issue 2, November 2017


Volume 2, Issue 2, November 2017

ISSN 2501-7837
ISSN-L 2501-7837

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Articles

  • The evolution of the fluvial islets hydrodinamic shape. Applications for Danube's Islets between Giurgiu and Oltenita towns

    Author: Andreea-Florentina Marin, Iuliana Armaș

    Abstract: This paper presents a brief analysis on the fluvial islets hydrodynamic shape. Proposed by the Wyrick (2005) and Wyrick & Klingeman (2011), the hydrodynamic shape criteria refers ”to the subaerial planform shape of the river islets”. According to them, these geomorphological landforms can have a streamlined shape, an angular aspect or irregular shape. Except for the last category, each of the other types has several subtypes. For this case study we selected the fluvial islets from the Danube River, the sector situated between Giurgiu and Oltenita towns. It can be observed that, nowadays (2017) there are five new islets unlike between 1889 and 1916 and most of the river islets have an irregular shape. Also, in the literature it is mentioned that there might be a connection between the shape and age of islets. So, in our study, we applied a Chi-Square Test to check this relation. The results show that there is a possible association between the shape and the age of the Danube's Islets.

    Keywords: hydrodynamic shape criteria, diachronic analysis, chi-square test, fluvial islets, Danube River.

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  • GIS in seismology: contributions to the evaluation of seismic hazard and risk

    Author: Dragos Toma-Danila, Carmen Ortanza Cioflan and Iuliana Armas

    Abstract: In this paper we highlight the capabilities and advantages of GIS, through an explicit analysis of its contribution within different studies of seismic hazard and risk
    assessment. These studies are related to Romania – one of Europe’s countries with the highest seismic risk, mainly due to intermediate-depth earthquakes originating in the Vrancea Zone. We provide examples of how GIS contributes and enhances the evaluation of seismic hazard, the development of vulnerability spatial datasets, multicriteria analysis, real-time estimation of seismic risk, assessment of road network failure susceptibility and implications, mapping or others. The role of free data and contribution capabilities are discussed. In recent projects such as Bigsees and Ro-Risk, GIS was one of the elements that lead to innovation, and we aim to present the experience and results. Another important aspect is referred to: the importance of GIS to a research dissemination with great impact.

    Keywords: GIS, seismic hazard, earthquake, maps, Romania.

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  • Urban flood risk analysis Case study: Bacău City

    Author: Diana-Alexandra Coca, Mara-Ioana Nilca

    Abstract: The subject of the present study is an analysis of urban flood risk for the city of Bacău in case of an extreme event situation, namely the failure of Izvorul Muntelui dam. Multi-criteria spatial methods have been applied in qualitative risk analysis to obtain a map of physical vulnerability by interpreting the data regarding the characteristics of each building within the areas prone to flooding. The social vulnerability was determined by using the same research method with a certain degree of uncertainty due to insufficient data available. The final result, the flood vulnerability map, obtained by interpolating the two variables – social vulnerability and physical vulnerability - can be used to support a more effective risk management.

    Keywords: multi-criteria analysis, flood risk, vulnerability, hazard, dam.

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  • Multicriteria decision analysis applied in tourism

    Author: Diana Popovici, Alexandra Capră, Ştefania Omrani

    Abstract: The decision analyses are useful tools used successfully in many fields - from Economics and Management to Urban Planning and Tourism. The aim of this analysis is to illustrate the usefulness and the potential of the decision analyses in tourism and even for business purposes. The paper presents a very brief introduction on the decision analyses with an emphasis on the multicriteria method applied in these. Further, applied on the study case, the phases of a decision analysis are being presented. The study case area is represented by a touristic area, which is not very well developed – Vrancea Depression – and it combines socio-economic aspects with touristic ones. At the end of the paper, some conclusions are drawn

    Keywords: multicriteria, decision analysis, spatial location, GIS, Vrancea Depression.

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  • Identifying limitations of Permanent Scatterers Interferometry for buildings monitoring

    Author: Mihaela Gheorghe , Iuliana Armaș

    Abstract: The Permanent Scatterer Interferometry (PSI) represents one of the most advanced monitoring techniques from space. In the current paper, the technique is applied for observing the movement behaviors of buildings found in the center of Romania’s capital, Bucharest, in order to verify whether there is a possibility to differentiate among patterns. The main hypothesis of the research is that buildings respond to ground movement differently depending on their characteristics, such as age, construction material, and structure or height regime. Twenty-seven images acquired by the German TerraSAR-X (TSX) satellite, were processed in order to depict ground level deformations. The buildings were analyzed by classifying them in different categories, depending on their earthquake vulnerability, height and location. The results suggested that the movement patterns identified by the satellite depend mainly on the spatial distribution of the buildings.

    Keywords: Permanent Scatterer Interferometry, Urban monitoring, TerraSAR-X, InSAR.

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  • Case studies of hydropower renewable energy and landscape quality from Romania

    Author: Maria Bostenaru Dan, Angelica Stan

    Abstract: This paper is presenting case studies of large hydropower built on Romanian mountain rivers Danube, Argeș and Bistrița during the communist regime and how they relate to criteria of landscape quality. The case studies were investigated as contribution to Working Group 2 and Working Group 3 of the COST action TU1401 "Renewable energy and landscape quality", a European network spanning almost all countries of Europe. The context is given by the dialogue between the micro-hydropower and the large hydropower, the first being traditional constructions. We can learn from the watermills as we can from the windmills, is the critical reflection done at the end.

    Keywords: hydropower, renewable energy, public participation, Danube.

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  • Erasmus+ in Cologne. Prologue

    Author: Vladimir-Nicolae Nechita, Cătălina-Teodora Stoian

    Abstract: "Prologue" is the first article of the series "Erasmus+ in Cologne" and is intended mainly for students and researchers of the Faculty of Geography of the University of Bucharest, who want to take part in an Erasmus+ scholarship. It covers advice and relevant information regarding the Erasmus+ programme, the choice of the university, the selection process (including required documents) and the interaction with the future host university (in this case, Technical University of Cologne), all based on the personal experience of the authors (Erasmus+ alumni).

    Keywords: Erasmus+, TH Cologne, International Student.

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