- Home
- Conferences
- Conference Proceedings
- Conferences
International Conference of Young Professionals «GeoTerrace-2022»
- Conference date: October 3-5, 2022
- Location: Lviv, Ukraine
- Published: 03 October 2022
61 - 75 of 75 results
-
-
An Attempt of Geo-Information Mapping of Lake-Basin Systems in the Polissia Region of Ukraine for the Needs of Balanced Nature Management
Authors I. Zubkovych, I. Kovalchuk, V. Martyniuk, V. Korbutiak and I. SukhodolskaSUMMARYUkrainian Polissia is among the regions of Ukraine that have the biggest number of lakes. Lakes have a significant potential of water, organic-mineral, biotic and recreational resources. Lake reservoirs regulate the hydrological regime of the landscape, improve the microclimatic conditions of geo-complexes adjacent to the lake, accumulate surface water, and are a habitat for water organisms and waterfowl, etc. On the other hand, lakes are objects of economic activity, which requires cadastral accounting, thematic GIS mapping and substantiation of measures for balanced nature management. The purpose of the research is to develop a cartographic model of Lake Luka basin (Volyn Polissia, Ukraine) with the aim of landscape-geographic substantiation of the functioning of the lake-basin system (LBS) in the context of balanced nature management. The bathymetric model of the lake, the map of the landscape structure of the natural-aquatic complex and the map of the land use of the catchment area were developed based on the results of field research, cameral processing of data, using the remote sensing data and QGIS software modules. The research included assessment of the morphological-morphometric and hydrological parameters of the LBS. The maximum depth of Lake Luka is 24.4 m, and the maximum depth of the lakebed, taking into account the depth of bottom sediments, is 32.3 m. The landscape structure of the natural-aquatic complex of Lake Luka is represented by a complex water tract, which includes the littoral-sublittoral (44.37% of the area) and profundal (55.63% of the area) aquatic sub-tracts, as well as six types of aquafacies. The research determined the ratio of anthropogenically transformed lands (ATL) to ecologically stabilizing lands (ESL) within the catchment area. The ratio is ATL – 9.8%, and ESL – 90.2%. The research identified that the structure of the catchment area land is optimal, and the indicator of economic development is low (0.11). The developed cartographic models and calculated morphological-morphometric and hydrological parameters of Lake Luka LBS are the basis for the development of the ecological passport of the lake. The developed model of land use allows optimizing nature management of the catchment area and taking preventive measures against geo-ecological risks, which meets the modern needs for the sustained development of such local territories as LBS.
-
-
-
Determining the Area of the Shatsky Lakes by Satellite Images Using the Data of the Remote Sensing
Authors K. Mikhulia, A. Mienasova, T. Shovkoplias and N. TarasovaSUMMARYFresh water, in sufficient quantity and of appropriate quality, is necessary for all spheres of life and is important for sustainable development. The ecosystems associated with it – including lakes, rivers, wetlands and groundwater – provide water and food for billions of people, provide unique habitats for many plants and animals, and protect us from floods and droughts. In recent decades, as a result of global climate changes and uncontrolled anthropogenic factors: drainage, reclamation, groundwater extraction, construction and agricultural use, significant changes in the state and hydrological regime of water bodies have been observed. There are few regions in the world that are not affected by the loss of potential sources of fresh water supply. Even the best natural tourist decoration of Volyn, the blue pearl of Ukraine, the Svityaz lake was on the brink of disaster, its water area receded from the modern coastline by 30–70 m ( Martyniuk V.O., Tomchenko O.V., 2021 ). In terms of water resources, Ukraine ranks one of the last in Europe. A good example is the Volyn Region, the main source of fresh water of which is the Shatsky Lakes, which are a single water complex. They are fed by artesian water of incredible purity, which is why you can use it without even purifying it. The largest and deepest lake not only in Volyn, but also in the whole of Ukraine is Lake Svityaz, which is located not far from the Shatsk village. Since the areas of water bodies change every year, monitoring their condition and solving the resulting problems is an urgent task. The use of data and technologies of remote sensing of the Earth helps in this.
-
-
-
Risk Assessment of Manifestation of Geomorphological Processes on the Slopes of the Borzhava Mountain Range Using Gis Modelling Methods for Environmental Needs Determined from Precise Levelling
Authors M. Teslovych and D. KrychevskаSUMMARYGeomorphological region Polonyna Borzhava (GRPB) is important from the point of view of environmental protection. Forestry and tourism-recreational nature management are actively developing and the construction of a large-scale wind farm project with 34 wind power plants (WPPs) with a total capacity of 120 MW is planned here. The mentioned anthropogenic activity contributes to the intensification of negative geomorphological processes and threatens the preservation of the existing sections of the Emerald network, which are of pan-European significance. The article, using GIS modelling methods, presents the results of the assessment of probable risks of the manifestation of adverse geomorphological processes within the slope geosystems of the GRPB. Based on the digital relief model created by us for the geomorphological region of Polonyna Borzhava, morphometric maps of slope steepness and exposure were compiled. A comprehensive analysis of these morphometric indicators made it possible to identify groups of slopes with varying degrees of risk of unfavourable geomorphological processes, provided that the integrity of the soil and vegetation cover is violated. The level of protection of slopes by nature reserved objects has been revealed. In order to establish environmental management and prevent the development of adverse processes within the framework of the GRBP, it was proposed to create a nature reserve institution here, introduce approaches in the forestry industry, limit the movement of tourist transport, and prevent the implementation of large-scale energy and recreational tourism projects.
-
-
-
Environmental Restrictions of Planning the Construction of Renewable Energy Facilities in Lviv Region
Authors Ye. Ivanov, M. Lopushanska and M. TeslovychSUMMARYThe existing environmental restrictions of planning the construction of renewable energy facilities in the Lviv region have been scrutinized. According to the current legal acts, the main limiting factors for the development of solar, wind, hydrogen and other types of renewable energy have been presented. With the help of the geoinformation system QGIS 3.16.8, a map of environmental restrictions of activity in Lviv region has been created. The geospatial features of the development of various types of renewable energy in the region have been studied. It has been found that more than 25% of the territory of the Lviv region is the subject to environmental restrictions for carrying out activities.
-
-
-
Remote Sensing of the Earth and GIS Technology in Monitoring Surface Water Pollution Using the Example of the Kremenchug Reservoir
Authors V. Semeniaka, V. Zatserkovnyi, T. Shovkoplias, N. Polyakova and L. MartyniukSUMMARYUsing the data of remote sensing of the Earth and modern GIS technologies, surface water monitoring methods were demonstrated using the example of the Kremenchug Reservoir. This technique was developed for further study of the state of water pollution, water quality and the introduction of appropriate measures to prevent the deterioration of the water environment.
-
-
-
Decision Making Support in the Determining Soil Characteristics in Landslide Hazard Areas
Authors Iu. Kaliukh, O. Chala, T. Khlevniuk, D. Khlevniuk and V. VapnichnaSUMMARYOften, during engineering and geological surveys, some parameters are not established reliably and require to be clarified by means of inverse calculations, based on the condition of the landslide hazard slope limit equilibrium (a stability coefficient is 1.0). In this case, the design engineers carry out the refinement of the sliding surface position and soils strength characteristics (for example, the internal friction angle and specific cohesion coefficient) by an enumeration method with numerous refinements and calculations. A new version of the LANDSLIP07 software package is developed, which allows to fully automate the solution of the problem of the physical mechanical characteristics refining for a landslide hazard slope. The problem of refining the physical mechanical characteristics of the soil, including the angle of internal friction j and the specific cohesion c, is reduced to solving the inverse soil mechanics problem using the numerical methods of nonlinear programming. This type of calculation (the automation of solving the inverse landslides lithodynamics problem by the j and c values determining) allows to support the design engineer due to quick determining the values of the specific soil cohesion c and angle j of the soil internal friction for a given stability coefficient КУ. These parameters are necessary for the determination of the landslide pressure on the landslide protection structure. Landslide pressure is a key parameter for the landslide protection structures design. A new version of the LANDSLIP07 software package is developed, which allows to fully automate the solution of the problem of the physical mechanical characteristics refining for a landslide hazard slope. The problem of refining the physical mechanical characteristics of the soil, including the angle of internal friction j and the specific cohesion c, is reduced to solving the inverse soil mechanics problem using the numerical methods of nonlinear programming. This type of calculation (the automation of solving the inverse landslides lithodynamics problem by the j and c values determining) allows to support the design engineer due to quick determining the values of the specific soil cohesion c and angle j of the soil internal friction for a given stability coefficient КУ. These parameters are necessary for the determination of the landslide pressure on the landslide protection structure. Landslide pressure is a key parameter for the landslide protection structures design.
-
-
-
Mathematical Modelling of Seismic Activation of Landslides in the Neogene Clay of the Carpathian Region
Authors Iu. Kaliukh, O. Voloshkina, I. Korduba, O. Zhukova and A. HoncharenkoSUMMARYThe report covers regional properties of stress-strain state of landslides with a plane of sliding lying in Neogene clays. Three main patterns and models of landslide process development (lateral spreads, earthflows and slides) for the Carpathian region of Ukraine are determined. The known greatest Chernivtsi landslides are lateral spreads with sliding surfaces lying in the Neogene clays. The lateral spreads occur on the slopes with rocks underlying fast horizontally. For the landslide slopes that are prone to lateral spreads the following section and form of sliding plane are specific: height exceeds 30m; length in a plan is not less than 70 m; front width exceeds 50 m; and sliding surface inclination does not exceed 15°. The specific section of the landslide combined with the regional features of a soil base therefore leads to some peculiar properties of landslide pressure distribution diagram and development of technical solutions on design of supporting landslide-protective buildings. The thicknesses of engineer and geological elements are not given purposely. It should be noted that the thickness of the Neogene clay in the vertical direction may reach more than 200.0 m in the lateral spreads. As a result of numeral design of the tensely-deformed state of changes of cut taking into account actual accelerogram of the Chernivtsi region on the basis of complex PLAXIS it is found out a direct dynamic method: seismic events by intensity to 6 points can considerably worsen descriptions of soils in the zone of shute, to influence on firmness of slope and size of pressure of change. The further increase of seismic of building (to 7–8 points) ground results in the substantial decline of coefficient of firmness. A slope at first proof (kst >1) goes across (kst=1) in a century (kst<1).
-
-
-
Investigation of the Dependencies Between the Angular External Orientation Elements of the UAV
More LessSUMMARYThe full-scale war that is currently taking place on the territory of Ukraine against the Russian invaders has clearly shown the huge role played by UAVs in military operations. In addition to the combat and reconnaissance use of these devices, there is also the process of aerial photography, which makes it possible to process digital images not only with high resolution, but also to obtain high-precision terrain coordinates, necessary for pinpoint destruction of enemy targets. However, in order to perform the aerial survey process, as is known, it is necessary to comply with a number of requirements for the means of its implementation. First of all, it is certainly the horizontality of the flight, which makes it possible to reduce the angular external orientation elements (AEOE) of the cameras in order to improve the accuracy of obtaining coordinates of the terrain points. The authors of this publication came up with the idea that the AEOE of UAVs is dependent on each other. As a result of research, this fact is confirmed by experimental data by establishing correlations between the elements α, ω, κ. On the basis of the numerical data of the experiments, the dependence of the parameters α, ω on the element κ is approximated, and the values of AEOE are found for which the error in determining the coordinates is minimal It should be noted that the angle κ was taken as the basis, since in most aerial survey UAVs an aerial device is installed to compensate for this angle, i.e., it is minimized in flight.
-
-
-
Comprehensive Digital Geoecological Atlas of the River-Basin System: the Idea and Its Practical Implementation in Ukraine
Authors I. Kovalchuk, A. Kovalchuk, Yu. Andreychuk, Ye. Ivanov and O. PylypovychSUMMARYThe scientific principles of cartographic modelling of the geoecological conditions of the river-basin systems and their changes under the influence of economic activity and the transformation of climatic conditions have been determined. The main methods of assessing the condition of river systems and their basins have been disclosed. The experience of thematic and complex atlas mapping of the river-basin systems by Ukrainian and foreign scientists has been described. The results of the creation of a digital large-scale interactive geoecological atlas of the river-basin systems Bystrytsia have been presented. Prospective directions for the continuation of geoecological studies of the river-basin systems have been outlined.
-
-
-
Geoinformation Technologies in the Tasks of Traffic Organization
Authors O. Lisnyk, D. Tovstonog, L. Martyniuk and V. ZatserkovnyiSUMMARYThe current state of the transport sector does not fully meet the requirements of effective implementation of Ukraine’s European integration course and integration of the national transport network. Therefore, the urgent tasks facing the transport industry are effective management of the transport network and fleet of vehicles, efficient and fast transportation of goods and passengers, and reducing the total cost of transportation, speeding up the execution of orders by transport companies and most importantly operational monitoring of vehicles and cargo, road surface and transport infrastructure. For the effective functioning of the traffic organization system, it is necessary to operate with very large amounts of heterogeneous information. Therefore, one of the main tasks is to develop a multi-purpose automated information system for data collection and visualization, as well as creating a single information space for systematic information analysis and an effective traffic management system using an automated information system - GIS.
-
-
-
Monitoring of Green Areas Using Remote Sensing Technologies
Authors S. Sakhniuk, V. Zatserkovnyi, N. Polyakova, L. Martyniuk and T. ShovkopliasSUMMARYGiven the current need to monitor green spaces - modern technologies for remote sensing of the Earth are, if not the best way to accomplish this mission. From the conducted studies, it became clear that the monitoring of plantations should be carried out on a permanent basis, and it is advisable to use remote sensing to speed up the process and improve the quality. The authors analysed plantations on the territory of the cities of Sumy and Ternopil using remote sensing technologies and specialized software. According to the analysis, it became possible to compare the ratio of plantations to the area in each of the cities, to study the state of plantations and the trend of changes in their quantities.
-
-
-
Concept of Creation of the Automated System of Remote Deformation Monitoring and Control of the Technical Condition of Engineering Infrastructure
Authors L. Kuzmych, G. Voropay, A. Kuzmych, V. Polishchuk and A. KuzmychSUMMARYThe concept of creation of automated systems for deformation monitoring and control of the technical condition of engineering infrastructure is proposed; tasks related to the principles of construction, features of functioning and efficiency, as well as the technical condition and reliability of the engineering infrastructure objects, are considered. The structural diagram of the four-level fundamentally automated system of remote deformation monitoring and control of the technical condition of engineering infrastructure, which ensures the fulfilment of the requirements set for it, is given.
-
-
-
Experimental Studies of Deformation Monitoring in Metal Structures Using the Electromagnetic Method
Authors L. Kuzmych, M. Voloshin, A. Kuzmych, S. Kuzmych and V. PolishchukSUMMARYThe proposed method for assessing the stress state of metal structures is more convenient than the strain gauge method. In this way, it is possible to measure stresses in loaded elements when it is impossible to find an unloaded reference sample of the product
-
-
-
Research of the DEM of the Zvenyhorod Hillfort for Priority Areas for the Analysis of Vertical Displacements
More LessSUMMARYThe purpose of the conducted research is to build a modern digital elevation model of the Zvenyhorod hillfort according to the topographic plan of 2011 and to examine the built DEM for priority areas for the analysis of vertical displacements, combining it with archival cartographic materials. In addition to the 2011 topographic plan at a scale of 1:1000, the input data was the archival map was created by Friedrich von Mieg in the 18th century and the Polish archival map of the 18th century on which the infrastructure of the Zvenyhorod hillfort is displayed. According to the topographic plan, a modern digital elevation model of the object was built and the urban infrastructure was transferred from archival maps. The overlap of the hillfort objects as of the 18th century was analysed and the priority points for the research of vertical displacements of the Earth’s surface were pre-determined, namely the places where the infrastructural objects on the two archival maps coincide. According to the digital elevation model, the places of infrastructural objects of the Zvenyhorod hillfort were analysed from archival maps. It was determined that some objects on the two maps do not match, although the cartographic materials are from the same period. It can be concluded that these objects were applied to one of the cartographic materials by mistake or approximately, since even the generalization of the data does not explain the difference in their location. Priority areas for investigation for vertical displacements are marked of the red and yellow points of objects are applied depending on the priority of further research.
-
-
-
Comparison of 3D Models of Mass Graves Created on the Basis of Aerial Survey Data in 1944 and 2015
Authors B. Chetverikov, L. Babiy, Z. Kuzyk and I. ZayatsSUMMARYThe purpose of the research is to determine the location of the mass graves of Jews in Vynnyky near Lviv based on eyewitness accounts and archival aerial photographs of 1944, creation of the DEM of the territory of burials on aerial photographs of 1944 and on the basis of aerial survey from UAV in 2015 and comparison of created models. To accomplish this task the workflow is proposed, which provides successive steps. This workflow includes the following stages: creation of an orthophoto map and elevation map according to aerial survey data of 2015; elaboration of a stereo pair of German aerial photographs of 1944 and obtaining contour lines of the relief for the war period; interpretation on archival aerial photographs of the territory of the mass grave according to the approximate location indicated by eyewitnesses and determination of its area; construction of vector maps on the territory of the mass grave for 1944 and 2015; analysis of the DEM of 1944 and 2015 in the place of the mass grave and drawing conclusions. As a result of processing the input data, the mass grave was clearly interpreted and it was determined that the difference in height of its boundaries for 1944 was from 20 to 36 centimetres, the difference in height for 2015 on the part of boundaries of the grave was from 15 to 20 cm. Height differences are observed in the rest of the territory, which belongs to the mass grave and beyond. From this we can conclude that after many decades, despite human intervention and agricultural plowing, the elements of soil subsidence in the grave are still preserved.
-