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International Conference of Young Professionals «GeoTerrace-2022»
- Conference date: October 3-5, 2022
- Location: Lviv, Ukraine
- Published: 03 October 2022
1 - 20 of 75 results
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Berezhany geological teaching polygon
Authors M. Oliinyk, I. Bubniak and M. BihunSUMMARYIn this work we present the description of the Berezhany geological teaching polygon. The main goals of the student works are described. The typical stages of the field work are outlined. Short history of the creation geological teaching polygon is outlined. The workflow of the field works is shown. Geological structure and useful minerals of Berezhany area are characterized. Skills that students should master when describing geological objects presented. New technologies are used in the field student’s works. Among others are FieldClino and FieldMove.
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3D of Saulyak deposit
Authors T. Tsikhon, U. Lushchak, Yu. Baloh, O. Pavlyuk and S. TsikhonSUMMARYThe work shows how to present the results of geological research with the help of modern computer programs. The ArcGIS software developed by Esri was used to build electronic maps, and the Move software was used to build three-dimensional models of the Saulyak deposit. Constructed 3-D models of ore bodies will make it possible to visualize the available geological information and predict the prospects of deep horizons and flanks of the Saulyak deposit at a qualitatively new level.
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Oil and Gas Prospective Objects Within Carpathian Foredeep
Authors M. Bihun, M. Oliinyk and O. PavlyukSUMMARYDespite the large number of works devoted to the oil and gas potential of western Ukraine and the Carpathian foredeep, in particular, a number of issues remain problematic or not fully resolved. Such issues include the southwestern border of the Carpathian foredeep under the Carpathian thrust. One of the ways to solve this issue is the interpretation and reinterpretation of geological and geophysical data using modern computer technologies. Modern methods and technologies will also contribute to increasing the fund of structures, as their shortage is a serious problem today. Types of the geophysical investigations carried out in the Western region of Ukraine are described. The perspectives on oil and gas of the tectonic units of the Western part of Ukraine are outlined.
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Ice Glacier Velocity Determination Using Sentinel-1 Data: a Case Study on Wiggins Glacier, West Antarctica, 2015–2017
Authors K. Tretyak and D. KukhtarSUMMARYIce velocity determination is an important part of glacier monitoring. This information helps to understand the glacier dynamics as well as its contribution to climatic change. In this article we apply the tracking features/points method of Sentinel-1 data processing. The focus area of this study is Wiggins Glacier. It flowing over 10 nautical miles (18 km) on Kyiv Peninsula in West Antarctica. The offset tracking processing performs using Sentinel-1A IW GRD (Ground Range Detected) images with HH & HV polarization. In this article we show the results of processed 47 radar images. The initial results of the study of the ice velocity of the Wiggins Glacier, which consisted of 47 velocity maps for the period May 2015 – March 2017, gave several results. We indicate periods of time with lowest, highest value and calculate average ice speed flow: the highest value – 3.83 m/day (05 November 2016); the lowest value – 2.631 m/day (31 August 2015). The average velocity during researching period of time – 3.206 m/day.
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Complex Automatic Control System of Structures in the Area of Operation of the Dniester PSPP
By A. ZyharSUMMARYThis work describes the main methods and tools of geotechnical control with the help of which the safety of the hydraulic structure is maintained. The principle diagrams of the structure of the equipment and the places of their specific application are given. The given tools of geotechnical control are distributed according to their intended purpose, for example, vibrating piezometers are used as filtration control and measuring equipment, rebar dynamometers control stress indicators in the reinforced frame of concrete structures, inclinometric garlands together with extensometers reflect the stresses that occur in the soil massif.
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Analysis of Seasonal Changes of Zenith Tropospheric Delay Components Determined by Data of Two Pairs of Aerological and GNSS Stations
Authors B. Kladochnyi, F. Zablotskyi and O. SerantSUMMARYIt is known that the tropospheric delay is one of the most important factors that reduce GNSS measurements accuracy. The aim of the work is to analyze the change of both hydrostatic and wet components of zenith tropospheric delay. Today, zenith tropospheric delay components are determined mainly in two ways. The hydrostatic component determined by using analytical models, such as Saastamoinen model. The wet component of ZTD is obtained from GNSS measurements using simulated value of hydrostatic component. The study evaluated the accuracy of the both hydrostatic and wet components of ZTD according to sounding data. For this, two pairs of aerological and GNSS reference stations was selected. First pair of stations is Praha-Libus aerological station and GOPE GNSS reference station, which located in Czech Republic. The second pair is Legionowo aerological station and GOPE GNSS reference station, located in Poland.
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Danube Loess Magnetostratigraphy: a Perspective from Ukraine
Authors D. Hlavatskyi, V. Bakhmutov, Yu. Veklych, V. Shpyra and Ie. PoliachenkoSUMMARYA first palaeomagnetic study has been carried out on a new section with a potential lower boundary interval for the Quaternary, Dolynske 3 (Lower Danube, southern Ukraine). Recently, the Matuyama–Brunhes boundary (at 780 ka) was detected in the adjacent section of Dolynske 2. The current study focuses on the hydromorphic clays and pedosediments of the Bogdanivka to Kryzhanivka units (S13–S8). Samples from the Upper Bogdanivka (S11) and Upper Berezan (L9L1) subunits show a clearly defined reversed polarity related to the Matuyama chron; some samples from other layers were uninformative due to hydromorphic features and were rejected from the interpretation. Given the unsuitability of hydromorphic palaeosols and loesses for magnetostratigraphic studies, the determination of the Gauss–Matuyama boundary requires additional, including methodological, research on other sections of Ukraine. The stratigraphic completeness of the composite Dolynske section, its geomorphological location within the Pliocene Danube terraces and convenient geographical setting allow offering it for study as a reference section for the loess/soil formation in the Lower Danube basin. Furthermore, tentative stratigraphic correlations of loess-palaeosol sequences in south-eastern Europe require revision and adaptation in view of new magnetic data from the more complete Ukrainian loess sequences.
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Erosion Processes of Mountain Tourist Trails in the Carpathian National Nature Park (Ukrainian Carpathians)
Authors V. Brusak, I. Hnatiak and V. ShtuhlynetsSUMMARYThe tourist trails of Skybovi Gorgany and Chornohora (Ukrainian Carpathians) are analyzed as well as different stages and degrees of trails degression are revealed. Erosion processes evolve on the V stage of recreational degression. It is established that tourist trails differ in the general condition and degrees of recreational degression and the length of the sections with the manifestation of erosion processes. Such diversity depends on the relation to the main elements of the relief, geological substrate, soil and plant cover and the amount of recreational load. Erosion processes are the most appreciable on the tourist trail “to Hoverla mountain” and “Dovbush trail” due to excessive recreational load. Finally, the authors propose organizational, managerial, and engineering activities for improving the condition of the trail.
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Study of Coordinates Determination Accuracy Using GNSS RTK Technology by Receivers STONEX S900 and S700
Authors A. Vivat, A. Tserklevych, L. Poliakovska, N. Nazarchuk and O. HrabovyiSUMMARYGNSS (Global Navigation Satellite Systems) technology for determining coordinates has significant advantages over other geodetic methods. This is globality, all-weather, automation. The main disadvantage of GNSS is the dependence on the openness of the horizon for the visibility of satellites. The improvement of GNSS is, for example, the “Tilt” technology ( Luo at. al., 2018 ) - tilt sensors that bring the inclined receiver to a vertical line with an error of 2 – 5 cm depending on the angle of inclination. AGNSS technology is the transmission of corrections through a satellite channel when communication with the base station is lost.” The new “IMU” technology is short-term positioning in space without satellites. Technology “PPP” ( Mulic at. al, 2013 ) - increasing the accuracy of autonomous position determination by introducing corrections to disturbing factors (orbit, atmosphere, additional reflection). The most accurate way to determine the position on the earth’s surface using the GNSS method is the static method with an error of 1–2 mm. The RTK “Real Time Kinematic” method is very relevant today and is often used by surveyors, it provides high accuracy, quality and speed of coordinate determination. Today, GNSS technologies are more actively used by geodetic production and have practically replaced electronic tacheometry in topographic surveying. In our opinion, the “Tilt” technology can increase the accuracy of shooting points when the horizon is significantly closed for GNSS topographic surveying in RTK mode. The instruction on topographic surveying regulates the error for the largest scale of 5 cm. Increasing the number of satellites and satellite constellations should increase the accuracy and reliability of determining the coordinates in the RTK mode. In 2011, we conducted a similar study at the landfill in Berezhany ( Vivat, 2011 ). In the future, technologies will probably be developed that will increase the accuracy of determining coordinates in difficult conditions with a closed horizon. Therefore, such studies are relevant. In 2022, we proposed a synchronous RTK method ( Vivat at. al., 2021 , 2022 ) using two rover receivers to compensate for systematic errors.
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Estimation of Zenith Tropospheric Delays Based on GNSS Data Around the Ukrainian Antarctic Akademik Vernadsky station
Authors S. Doskich, S. Savchuk and I. SavchynSUMMARYToday, the Antarctic continent is almost completely covered by powerful ice systems, which contain 90% of the world’s ice reserves and 70% of the world’s freshwater reserves. Any changes in the ice sheet in Antarctica will have global consequences and require careful monitoring. The GNSS method is an invaluable tool for such research. With the help of GNSS stations located in Antarctica, it is possible to conduct seismic monitoring, determine the amount of ice melting, calculate the amount of water vapour in the atmosphere, and measure ionospheric activity. The main goal of this study is to calculate the zenith tropospheric delays (ZTD) of GNSS stations in Antarctica. The tropospheric delay values were determined based on the data analysis in the double difference (DD) network solution mode and compared with the ZTD data from the PPP precise point positioning method. Calculated tropospheric delays can be used to estimate water vapor content in the Antarctic troposphere, to correct altimetric products for the influence of the moist component of the troposphere, and for remote sensing of the atmosphere.
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Geoinformation Modelling of Recreational Resources of National Nature Park “Hutsulshchyna”
Authors I. Zobniv, D. Liashenko and N. KoperSUMMARYThe Natural Reserves Fund (NRF) has a special environmental and other value and functions to preserve the natural diversity of landscapes, maintain the overall ecological balance and provide background monitoring of the environment (Law of Ukraine “About Nature Reserve Fund of Ukraine”). The preservation, development and effective use of NRF, the formation of a national network of environmental protection areas and its integration into the All-European Econet is an extremely urgent task of Ukraine state policy. Nowadays, NRF protected areas, especially national nature parks, regional landscape parks, etc. have become increasingly popular among tourists. The number of recreants and tourists is increasing. Recreants and tourists are important stakeholders in territory management in Carpathian region. They are interested in staying in natural environment and sites with the uppermost visual attractive values. Recreants most of all need high level of natural resources for treatment and rehabilitation (mineral waters, climatic factors, etc.). ( Liashenko et al., 2021 ). That is why the necessity of sustainable recreational nature management is increasing, too. The most powerful recreational nature management instruments are GIS. These technologies are convenient for describing recreational resources quality and availability. They are useful for spatial data analyses, synthesis and visualizing with modern cartographic resources; web maps, web atlases, tourist web portals, etc.
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Approaches to the Creation of an Automated System of Monitoring and Management of Community Resources
Authors А. Dorosh, Sh. Ibatullin, Ye. Tarnopolskyi, A. Barvinskyi and D. MelnykSUMMARYThe feasibility of creating and systematizing approaches to creating a new type of automated monitoring system, a community resource management system aimed at integrating various types of data for the implementation of a wide range of analytical tasks in the context of monitoring and management, as well as rational use, assessment and protection of existing community resources within the framework of the developed corresponding program is justified.
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Methods of Building a Digital Relief Model Using the Application of Geoinformation
More LessSUMMARYA digital model of the relief is defined as a digital and mathematical representation of the terrain based on a discrete set of starting points, which allow to reproduce its real surface and structure with a given accuracy. The research uses geoinformation systems Google Earth Pro and ArcGIS 10.2.1 to generate information from the DEM to calculate slope angles and exposure of slopes, the shape of slopes due to the curvature of their transverse and longitudinal sections on the example of model land use. Information about the relief for model land use, located outside the village. Yampil of Murovanska village council of territorial community of Lviv district, Lviv region, with an area of 6.775 hectares for farming was obtained using the Google Earth Pro geoinformation system. The terrain profile of the model land use is plotted, showing that its distance range is 9.95 km, where the minimum elevation is 247 m, the average elevation is 250 m, and the maximum elevation is 253 m. The rise/fall of the terrain corresponds to a value of 50.1/− 50 m, and the maximum slope of the surface is 3.8 and −4.0% with an average value of 0.8 and −0.9%. GPS Visualizer, an online utility that helps create maps and profiles from geographic data, is used to display the DEM of model land use in the ArcGIS geoinformation program. In the geoinformation program ArcGIS, for the construction of the DEM of model land use, a sequence of using the file conversion tool in GPS format, obtained when using GPS Visualizer, based on data of the KMZ type from Google Earth Pro, was performed. The Spline with Barries tool is used, which allows displaying the smallest height value − 246.95 m and the largest − 253.10 m for the model land use.
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Study of the Activity of Volcanoes Using Remote Sensing Data and Gis Technologies
Authors T. Korkh, L. Babiy and N. HrytskivSUMMARYThe purpose of the implemented research is to study application of GIS technologies for processing remote sensing data on the example of the Cumbre Vieja volcano eruption. The object of the research is eruption of the Cumbre Vieja volcano, comprising the southern half of the Spanish island of La Palma in the Canary Islands, which began on September 19, 2021 at 15:12 local time and officially ended on December 25, 2021. Since the main task of the work is to study GIS methods to analyse consequences of the volcano eruption the several approaches of GIS analysis were applied. In the first part of the research, we analyzed various band compositions to get proper results and to highlight the lava flows and make their outlines more visible. Next step was to study applications of vegetation indices and as final part there was implementation of image classification for representing the results. We applied this approach to space images obtained for 3 different periods (30.09.21, 10.10.21, 9.12.21) and created a map showing the surface covered with lava and volcanic sediments, which gives the opportunity to visually display the processes of volcanic activity and its progress. The conducted studies showed that the means of geo-informational analysis and the use of remote sensing data provide opportunities for effective monitoring and follow-up of the consequences of volcanic activity. At the same time, it should be noted that for each case of volcanic activity, it is necessary to use separate approaches, due to different natural conditions, which have a significant impact on the content and quality of space images.
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Assessment of Land and Real Estate: Prospects for Development Using GIS
Authors B. Avramchuk, Yu. Palekha, Yu. Dekhtyarenko, A. Tarnopolskyi and M. MalashevskyiSUMMARYThe theoretical and practical provisions of the methodology for evaluating land plots and real estate in Ukraine are summarized. Problematic aspects of assessment activities in modern conditions are revealed in view of the regulatory and legislative framework. The advantages of the transition to land plot assessment along with improvements in the quality of the tax base are substantiated. An analysis of methodological and methodical approaches to taxation of land plots and real estate existing in the world tax systems was carried out. The main groups of real estate taxation systems and land plots in their composition according to the method of establishing the tax base are defined. The possibility of using a new methodology for evaluating land plots and real estate is substantiated. The results of the study can regulate professional appraisal activities, and eliminate shortcomings and gaps in the establishment and functioning of the appraisal institute in the land market.
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Crop Identification Using Remote Sensing Methods and Artificial Intelligence
Authors Sh. Ibatullin, Y. Dorosh, O. Sakal, O. Dorosh and A. DoroshSUMMARYThe research is aimed at monitoring the state of crops and their possible loss using remote sensing and artificial intelligence tools. Using these tools in the research process, the following results were achieved: the boundaries of agricultural land arrays were determined; identified boundaries of crops and their areas under individual agricultural crops by vegetation phase; analysed volumes of cultivated areas, their structure in a territorial section. It is proved, that using both Sentinel-1 and Sentinel-2 satellite images data give more accurate results. Crop profiles are proven to be the key to improving the quality of crop classification results, as they allow algorithms to better distinguish between crops.
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Some Aspects of the Creation of Complex Geospatial Features in Modern Geoinformation Systems
Authors N. Lazorenko, Yu. Karpinskyi and D. KinSUMMARYThe process of digitalization of the state, including the development of the national spatial data infrastructure, promotes new requirements for the creation of intelligent core reference data based on international and harmonized national standards and specifications. The main result is digital topographic maps in topographic-geodetic and cartographic production in the cartographic paradigm, that do not take into account the use of new associated features, the rules of the digital description of topographic features, and the rules of topological relationships between map features. Digital topographic maps have a unified content following the Classifier of the information displayed on topographic maps of scales 1:10 000 – 1:1 000 000. This Classifier was developed according to the rule: a feature has its own symbol and topographic code. Geoinformation technologies allow creating of complex features. Therefore, the goal of the research is to formulate the rules for creating complex (associated) geospatial features to ensure the intellectual level of topographic databases, which are the main product of the geoinformation paradigm. The article presents the concept of a complex (associated) feature based on the national standard DSTU ISO 19107:2017 Geographic information. Spatial schema (ISO 19107:2003, IDT). There are four types of collections of terrain objects that are considered in detail: geometric aggregates, geometric complexes, geometric composites, and global geometric complexes. Examples of features displayed on digital topographic maps were given for these types. The established rules for creating associated geospatial features must be taken into account during the development of the specifications of geoinformation products to ensure further compatibility and integration of core reference and thematic geospatial data in the NSDI.
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Geodetic Monitoring of the Kaniv HPP Dam Using Satellite Radar
Authors S. Nesterenko and A. KliepkoSUMMARYSatellite radar system method was used to study the deformation of the Kaniv hydroelectric power plant dam. Vertical displacements of the dam were determined by processing a pair of Sentinel-1 radar images in the SNAP software. The period corresponding to 0,6 calendar year is chosen. It is revealed, that from 29.07.2020 to 03.09.2020 there was a raising of all points of a dam, then the subsequent half-year lowering of a terrestrial surface was observed. The received results are confirmed by the data of survey by ground methods and on GNSS observations. It is proposed to carry out geodesic monitoring based on remote sensing data, especially of technogenic territories.
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Mapping and Geoinformation Analysis of Snow Avalanche Processes in Geocomplexes of the Subalpine and Alpine Highlands of the Chornohora (Ukrainian Carpathians)
Authors M. Karabiniuk, Z. Hostiuk, O. Burianyk, V. Leta and Ya. TerletskaSUMMARYThe principles of using GIS for the study and mapping of avalanche geocomplexes, as well as the geospatial analysis of the distribution of centers of process development are described. The factors and features of the development of snow avalanche processes, the nature of their distribution in the geocomplexes of the highlands of Chornohora, etc. are characterized. On the example of the key area of the headwaters of the Mreye Stream basin, the peculiarities of the placement of avalanche geocomplexes in the highland of massif are presented, which affect the dynamics and are an important element of the morphological structure of large glacial-exaration landscape complexes – corries, cirques, glacial troughs.
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Principles of Web Mapping of Post-Military Facilities
Authors S. Repekhovych and R. SossaSUMMARYHaving the principles of web mapping of post-military facilities makes it possible not only to get deeper into this topic, but also to fully implement the project in practice. Our study is based on general scientific and specific scientific principles. The following key principles have been outlined, which we rely on during the product implementation: historicism, systematic approach, credibility and modernity, consistency, informational value, presentability and accessibility, wide use of technology, multiple geographic bases, partnerships. Their mutual use contributes to making a comprehensive web map as consistent with the modern opportunities and needs. The implementation of the project reveals the historical theme of military actions in the territory of the region, development of the military infrastructure and military tourism in the territory of Lviv region.
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