scholarly journals Geomorphological Analysis of Xilokastro Fault, Central Gulf of Corinth, Greece

Geosciences ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 516
Author(s):  
Sotirios Verroios ◽  
Vasiliki Zygouri
Keyword(s):  
Geographical Information Systems ◽  
Active Tectonics ◽  
Normal Fault ◽  
Fault Scarp ◽  
Geographical Information ◽  
Drainage Basins ◽  
Gulf Of Corinth ◽  
Morphometric Index ◽  
Fault Trace ◽  
High Degree

The Gulf of Corinth is a rapidly opening area with high seismicity associated with extensive building collapses, destruction of cities, and even the deaths of inhabitants. Rapid residential development, especially in the southern part of the Gulf of Corinth, and the construction of crucial technical infrastructures necessitate understanding the activity across crustal-scale faults that host devastating earthquakes. The evolution of landforms affected by fault action is a dominant issue in geological science. In the present study, was selected the 20 km long Xilokastro pure normal fault. In this fault, we apply eight geomorphological indices in footwall catchments that drain perpendicular to its trace. In total, more than 5000 measurements were made in 102 catchments. The determination of geomorphological indices requires the construction of morphological profiles either perpendicular to the faults or perpendicular to the main tributaries of the drainage basins under consideration through the use of the geographical information systems (ArcGIS platform). Τhe application of these indices along catchments draining the Xilokastro fault scarp show high active tectonics. Its high activity is evidenced by the high values of the length-slope index near the fault trace, the low values of the width to height ratio index, the strong asymmetry of the drainage basins, especially in the overlapping zones between its segments, and the elongated shape of the drainage basins. This study supports the idea that the application of a single morphometric index is unable to reflect the distribution of active tectonics across faults, which makes inevitable the systematic comparison of a series of tectonic morphometric indices from which a new combined index emerges (Iat). The Iat classifies the Xilokastro fault in the high degree of activity at a rate of 75% of its length.

scholarly journals Defining GP Practices from an Urban Versus Rural Perspective: The Case of Czechia

2020 ◽  
Author(s):  
Luděk Šídlo ◽  
Jan Bělobrádek
Keyword(s):  
Geographical Information Systems ◽  
Healthcare Providers ◽  
Geographical Information ◽  
Insurance Company ◽  
Intermediate Type ◽  
Structural Differences ◽  
Using Data ◽  
High Degree ◽  
Urban Versus ◽  
Degree Of Similarity

Abstract BackgroundThis study is an attempt to demonstrate the potential for classifying GP practices in Czechia along an urban versus rural dimension and to compare the structure of areas thus defined with the OECD territorial typology. The aim is to ascertain whether a general approach to distinguishing regions is transferrable and could be used to define GP practices in Czechia. MethodsIn this study two variants are considered using data supplied to the authors by the largest health insurance company in Czechia, using geographical information systems. The results were then compared with the OECD regional typology, in which areas are classified as predominantly urban, intermediate, and predominantly rural. ResultsThe two GP practice typologies were then found to correspond closely to the OECD typology, but the most recent variant is more suitable. A high degree of similarity was evident in the categorisation of urban regions, and therefore practices, and slightly less so in the rural type areas. The most problematic aspect is defining the intermediate type, which has its own peculiarities and has to be considered within the wider context. ConclusionsDespite some structural differences, we can state that the main thinking behind the OECD typology is transferrable and can be used to determine urban versus rural healthcare providers, especially primary care ones. Nonetheless, the results point to further research avenues, especially on how to best to define the intermediate category so greater accuracy can be achieved in determining the resulting urban versus rural polarity.

scholarly journals Defining GP Practices from an Urban Versus Rural Perspective: The Case of Czechia

2021 ◽  
Author(s):  
Luděk Šídlo ◽  
Jan Bělobrádek
Keyword(s):  
Geographical Information Systems ◽  
Healthcare Providers ◽  
Geographical Information ◽  
Insurance Company ◽  
Intermediate Type ◽  
Structural Differences ◽  
Using Data ◽  
High Degree ◽  
Urban Versus ◽  
Degree Of Similarity

Abstract Background: This study is an attempt to demonstrate the potential for classifying GP practices in Czechia along an urban versus rural dimension and to compare the structure of areas thus defined with the OECD territorial typology. The aim is to ascertain whether a general approach to distinguishing regions is transferrable and could be used to define GP practices in Czechia. Methods: In this study two variants are considered using data supplied to the authors by the largest health insurance company in Czechia, using geographical information systems. The results were then compared with the OECD regional typology, in which areas are classified as predominantly urban, intermediate, and predominantly rural. Results: The two GP practice typologies were then found to correspond closely to the OECD typology, but the most recent variant is more suitable. A high degree of similarity was evident in the categorisation of urban regions, and therefore practices, and slightly less so in the rural type areas. The most problematic aspect is defining the intermediate type, which has its own peculiarities and has to be considered within the wider context. Conclusions: Despite some structural differences, we can state that the main thinking behind the OECD typology is transferrable and can be used to determine urban versus rural healthcare providers, especially primary care ones. Nonetheless, the results point to further research avenues, especially on how to best to define the intermediate category so greater accuracy can be achieved in determining the resulting urban versus rural polarity.

scholarly journals Simulating Redistricting in the Classroom: A Binding Arbitration Decision Game Using Louisiana Census Data

2018 ◽  
Vol 51 (03) ◽  
pp. 664-668
Author(s):  
Peter Miller ◽  
Steven Kimbrough ◽  
Johanna Schacht
Keyword(s):  
Information Systems ◽  
Game Design ◽  
Geographical Information Systems ◽  
Census Data ◽  
Geographical Information ◽  
Congressional Districts ◽  
Design And Implementation ◽  
The World ◽  
Us Census ◽  
High Degree

ABSTRACTThis article describes the design and implementation of a redistricting simulation in two classes at a large university. Simulations often include a high degree of abstraction and, as a result, may not inform and develop an understanding of how the world operates. We developed a binding-arbitration game, based on the New Jersey model of a bipartisan commission, in which groups of students used US Census data and a set of mandatory and discretionary criteria to design congressional districts in Louisiana as well as advocate for their plan at an open hearing. In so doing, they learned about the complexities of redistricting and were introduced to geographical information systems (GIS). The student-drawn maps, on average, were more compact and preserved a larger proportion of places and parishes in a single district than the legislature-drawn map. The article discusses other features of the students’ maps and concludes with comments on the general decision-game design.

scholarly journals Deep oceanic submarine fieldwork with undergraduate students: an immersive experience with the Minerve software

Solid Earth ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 2789-2802
Author(s):  
Marianne Métois ◽  
Jean-Emmanuel Martelat ◽  
Jérémy Billant ◽  
Muriel Andreani ◽  
Javier Escartín ◽  
...  
Keyword(s):  
Earth Sciences ◽  
Undergraduate Students ◽  
Geographical Information Systems ◽  
Active Fault ◽  
Active Tectonics ◽  
Deep Ocean ◽  
Geographical Information ◽  
Remotely Operated Vehicle ◽  
Promising Tool ◽  
Teachers And Students

Abstract. We present the content and scripting of an active tectonic lab session conceived for third-year undergraduate students studying Earth sciences at Observatoire des Sciences de l'Univers in Lyon. This session is based on a research project conducted on the submarine Roseau active fault in the Lesser Antilles. The fault morphology is particularly interesting to map as this structure in the deep ocean is preserved from weathering. Thus, high-resolution models computed from remotely operated vehicle (ROV) videos provide exceptional educational material to link fault morphology and coseismic displacement. This class includes mapping exercises on geographical information systems and virtual fieldwork to provide basic understanding of active tectonics and active fault morphology in particular. The work has been conducted either in a full remote configuration via 3D online models or in virtual reality (VR) in a dedicated room using the Minerve software. During the VR sessions, students were either alone in the VR environment or participated as a group that included the instructor (physically in the classroom or remotely from another location), which is to our knowledge one of the first attempts of this kind in France. We discuss the efficiency of virtual fieldwork using VR based on feedback from teachers and students. We conclude that VR is a promising tool to learn observational skills in Earth sciences, subject to certain improvements that should be possible in the years to come.

scholarly journals THE USE OF THE GEOGRAPHICAL INFORMATION SYSTEMS (G.I.S) IN THE GEOLOGICAL – MINERALOGICAL MAPPING OF THE PARANESTI AREA

2017 ◽  
Vol 43 (3) ◽  
pp. 1601
Author(s):  
M. M. D. Karageorgiou ◽  
E. Karymbalis ◽  
D.E. Karageorgiou
Keyword(s):  
Information Systems ◽  
Geographical Information Systems ◽  
Active Tectonics ◽  
Geological Structure ◽  
Ore Deposits ◽  
Geographical Information ◽  
Gis Technology ◽  
Northern Greece ◽  
Organization Analysis

The aim of this study is to emphasize the role of the Geographical Information Systems (GIS) technology for the collection, organization, analysis, modeling and presentation of data required for the geological and ore-deposits mapping. As a case study area the region of Paranesti in Northern Greece was selected as it is of exceptional geological and uranium mining interest. For the geological and ore deposit mapping of the study area data derived from analogue maps at various scales (topographical and geological) along with detailed field geological observations and measurements were organized in a spatial database with a common geographical coordinate system utilizing GIS technology. This procedure revealed the relation between the geographical distribution of uranium deposits and the geological structure of the area as well as the effect of the active tectonics.

scholarly journals Ποσοτική ανάλυση - μορφοτεκτονικοί δείκτες για τις περιοχές των ρηγμάτων Στρατωνίου - Βαρβάρας και Γοματίου - μεγάλης Παναγιάς (Ανατολική Χαλκιδική)

2005 ◽  
Vol 38 ◽  
pp. 14 ◽  
Author(s):  
Α. ΜΙΧΑΗΛΙΔΟΥ ◽  
Α. ΧΑΤΖΗΠΕΤΡΟΣ ◽  
Σ. ΠΑΥΛΙΔΗΣ
Keyword(s):  
Surface Morphology ◽  
Geographical Information Systems ◽  
Drainage Basin ◽  
Active Faults ◽  
3D Models ◽  
Fault Scarp ◽  
Geographical Information ◽  
Stream Length ◽  
Hypsometric Integral ◽  
Mountain Front

The study area is located at the NE part of Chalkidiki peninsula. Geologicaly it belongs at Servomacedonian mass. The faults of Stratoni - Barbara and Gomati- M. Panagia have an important role at the surface morphology of the area. These are typically active faults and they are the most important neotectonic structures at Eastern Chaikidiki. For the study of surface morphology a quantitative morphotectonic analysis has been done with the contribution of Geographical Information Systems GIS. The morphological indicators we have studied are: hypsometric curve and hypsometric integral, drainage basin asymmetry, mountain - front sinuosity, stream length - gradient index, transverse topographic symmetry, radio of valley - floor width to valley height and fault scarp morphology. This morphotectonic analysis has confirmed the field observations. Major role in this research had the use of satellite pictures and 3D models (Digital Elevation Model - D.E.M.).

scholarly journals Using GeoHashes to Combine IOT and GIS to Provide Business Intelligence to the Informal Sector in South Africa

10.29007/rssv ◽  
2020 ◽  
Author(s):  
Laurie Butgereit
Keyword(s):  
South Africa ◽  
Internet Of Things ◽  
Informal Sector ◽  
Unemployment Rate ◽  
Business Intelligence ◽  
Geographical Information Systems ◽  
Geographical Information ◽  
Formal Sector ◽  
High Degree ◽  
Use Of Internet

South Africa has one of the highest GINI coeefficient indicating a high degree of inequality in the country. There is also extreme unemployment with the expanded unemployment rate being 38.3% and in some subsections of the economy as high as 68.3%. Despite this, the Informal Sector (non-agricultural) employs over three million people. Many corporates offer products to the formal sector, the informal sector or both. The commercial margins are often very slim in the informal sector. This paper looks at the use of Internet of Things, Geographical Information Systems, and GeoHashes to provide business intelligence to merchants in the Informal Sector thereby helping them improve their competitive advantage.

Assessment of land-use change in coastal areas through geographical information systems

2020 ◽  
Vol 13 (10) ◽  
Author(s):  
Verónica Lango-Reynoso ◽  
Karla Teresa González-Figueroa ◽  
Fabiola Lango-Reynoso ◽  
María del Refugio Castañeda-Chávez ◽  
Jesús Montoya-Mendoza
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Geographical Information Systems ◽  
Design Methodology ◽  
Scientific Information ◽  
Coastal Ecosystems ◽  
Coastal Areas ◽  
Geographical Information ◽  
Coastal Zones ◽  
Computer Based

Objective: This article describes and analyzes the main concepts of coastal ecosystems, these as a result of research concerning land-use change assessments in coastal areas. Design/Methodology/Approach: Scientific articles were searched using keywords in English and Spanish. Articles regarding land-use change assessment in coastal areas were selected, discarding those that although being on coastal zones and geographic and soil identification did not use Geographic Information System (GIS). Results: A GIS is a computer-based tool for evaluating the land-use change in coastal areas by quantifying variations. It is analyzed through GIS and its contributions; highlighting its importance and constant monitoring. Limitations of the study/Implications: This research analyzes national and international scientific information, published from 2007 to 2019, regarding the land-use change in coastal areas quantified with the digital GIS tool. Findings/Conclusions: GIS are useful tools in the identification and quantitative evaluation of changes in land-use in coastal ecosystems; which require constant evaluation due to their high dynamism.

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