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Geoinformatics
- Conference date: May 11-14, 2021
- Location: Online
- Published: 11 May 2021
101 - 120 of 154 results
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Methodological aspects of using information technologies in revealing the genesis and composition of modern accumulative-beach deposits in the north-western part of the Black Sea
Authors A. Tarnovetskyi and V. NesterovskyiSummaryThis paper describes a theoretical statement of the use of information technology to uncover the genesis and process of sedimentation in the north-western part of the Black Sea, as the Black Sea shelf, is of interest at the moment, as a potential source of minerals. But at the moment, their extraction is unprofitable, but over time, with a decrease in the number of traditional deposits, production technologies will also improve.
Paper also describes the main parameters selected for modeling geological processes and tools that will be used to achieve a given goal. The data presented in the work were obtained in several ways. The mineralogy of the rocks was selected manually at the site of the study area. The rest of the data is like the speed of currents, wind directions were taken from open sources. The main purpose of this work can be considered the study of the methodological aspects of using information technologies in revealing the genesis and composition of modern deposits of the coastline. This paper are introductory and theoretical.
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Economic and mathematical modelling of sustainable extraction of natural resources
Authors Ie. Khlobystov, L. Horoshkova, V. Trysnyuk, D. Tarasenko, O. Tarasenko and L. FilipishynaSummaryTo determine the framework to ensure conditions for Ukrainian mining industry`s sustainable development, the methodological principles to determine the level of sustainability and to model the parameters and limits of sustainable development applying the case of coking coal and iron ore mining have been proposed. The method to measure the extractive sector`s level of sustainability, i.e. the sustainability index, which is determined on the basis of the linear and quadratic deviation of production volumes, has been proposed. The method to measure coking coal and iron ore mining level of sustainability has been developed using statistical indicators of relative and accumulated frequencies, which made it possible to obtain absolute indices of sustainability level in kind. It has been recommended to measure the extractive sector`s limit of sustainability finding the extremum of functions that describe the regression relationships between coke and ore production from the extracted raw materials, taking into account export-import flows and their use in metal production. The obtained modelling results provide an opportunity to forecast the optimal volumes of mining as a basis for sustainable development management of the Ukrainian extractive sector.
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Geological interpretation of remote sensing data for deep faults identifying in the Dnieper-Donets basin
Authors S. I. Golubov, A. I. Vorobiev, O. V. Sedlerova and T. A. YefimenkoSummaryThe article offers an interpretation of the lineaments obtained by decoding SRTM, using the example of the western part of the Dnieper-Donetsk depression. A new approach is based on data on the interaction of deep faults with the formation of transmission and movement structures, which significantly affect the conductivity of deep faults. According to geophysical data published in open sources, the formation as a result of such interaction of fault fields of different stages of maturity has been traced, which affects the fluid conductivity of the faults, as well as the destruction of mineral deposits. The use of this approach will increase the quality and reliability of interpretation of the results of decoding the remote sensing data, and this, in turn, will increase the efficiency of forecasting geodynamically active zones and, as a consequence, the oil and gas prospects of specific areas, structures and individual blocks.
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A web-based platform LANDSCAPE FIRES: regional-level fire management information system for Northern Ukraine
Authors V. Myroniuk, S. Zibtsev, V. Bogomolov, O. Soshenskyi, V. Gumeniuk and R. VasylyshynSummaryCatastrophic landscape fires of 2020 that in four episodes burnt at least 160 000 ha of forest and other lands in the Chornobyl Exclusion Zone, Zhytomyrska, Kharkivska and Luhanska oblasts required development and implementation of modern web-based platforms, that combine use of geoinformation technologies, remote sensing data and advanced fire science methods for better spatio-temporal assessment of fire risks in landscapes and modelling potential behavior of catastrophic fires. Common access to data on such platform of policy makers, agencies and fire managers as well as other stakeholders will contribute to better prevention and suppression of fires in regional and national scale. Main features and functions of geoportal “Landscape Fires of Ukraine” presented in the paper as well as some pilot cases that demonstrate capacity of this perspective tool that could be important step toward transition to integrated landscape fire management in Ukraine.
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Surface soil moisture deficit assessment based on satellite data
Authors L. Pidgorodetska, Ya. Zyelyk, L. Kolos and O. FedorovSummaryThe surface soil moisture deficit assessment method is proposed, which differs from the existing ones in that it is based not on the simplified model of the daily water balance according to meteorological data and empirical relationships, but on direct calculation of the difference between soil water content at field capacity and actual soil moisture content calculated according to satellite data. The method advantage is the possibility of its implementation on the continental scale with acceptable 250 m and 1 km spatial resolution and daily temporal resolution based on data from open sources. The limitation of the proposed approach is that it can be applied only for relatively small depth of the soil surface layer of 5 cm due to the use of satellite radar data. The method was implemented in the free cross-platform geographic information system QGIS for the part of Kyiv and Zhytomyr regions territory using data products of 3D Soil Hydraulic Database of Europe provided by ESDAC and Surface Soil Moisture (SSM) satellite data products from Copernicus Global Land Service.
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Dependence of calculation parameters on the detail of exploration works
Authors I. R. Mykhailiv, A. P. Boiko and O. R. BarannykSummaryInaccurate determination and substantiation of calculated parameters performed based on the results of exploration works leads to overestimation or underestimation of the value of oil and gas reserves of the field. The article analyzes the calculated parameters and their change during the entire period of study and development of the field.
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Geoelectrical properties of earth’s crust and upper mantle rocks according to the 1D inversion results of DMTS curves
Authors A. Kushnir, T. Burakhovych, V. Ilienko and B. ShyrkovSummaryAccording to the DMTS experimental data from different geological regions of Ukraine, one-dimensional OCCAM inversion and transformations of Schmucker, Niblett, Molochnov – Le Viet are carried out. The amplitude and phase curves obtained as the result of processing using the PRC MTMV program in the range of periods from 1–10 to 10000 s are extended by DMTS data. As a result of 1D inversion it is seen that under the north-western part of the USh the deep section of the mantle corresponds to the “normal” ρ distribution, while the northeast of the Prydniprovskiy and the eastern part of the Ingul megablocks are 2–5 times larger. On the northern board of the Belgorod-Sumy megablock DDB, the northern slope of Bug-Ros’ and the southwestern part of the Kirovograd megablocks USh, the northwestern part of the Black Sea shelf deep sections are characterized by the series of conductivity layers both in the earth’s crust and mantle.
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The use of artificial neural networks to determine the type of rock saturation
By A. StolpakovSummaryIn this stated theses about application of artificial neural networks for a problem of classification of rocks on saturation on such classes, as brine or oil saturation on the basis of parameters received during researches by a method of nuclear magnetic resonance. Based on them, the following results were obtained, the accuracy of correct answers is 93% when adjusting the resonance of the echo spacing 0.25 m/s. The following conclusions were drawn about the need to exclude nuclear magnetic resonance from research if these data will be used for this task.
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Morphostructural control of geological hazards within middle Dnieper area
Authors L. Tustanovska, O. Ivanik, V. Shevchuk, T. Shovkoplyas and D. KravchenkoSummaryGeologic studies in the Middle Dnieper basin and adjacent areas have shown that the geological hazardous processes (slides, falls, topples, erosion) there are largely localized along faults that formed during long-continued uplift concurrent with tectonic activity in the Ukrainian Shield during Neogene-Quaternary period. The evolution of different-scale and different-genetic morphostructures of the right bank of the Middle Dnieper Basin has been analyzed on the basis of complex structural-morphometric analysis, remote sensing data and spatial GIS modeling. The analysis of the created structural-morphometric models has allowed to determine the features of morphogenesis and tectogenesis during the Neogene-Quaternary period. Regional and local structures are characterized and the amplitudes of the newest and present movements of the earth’s crust are determined. The type of movements, their spatial occurrence within the Kyiv, Obukhiv and Kaniv-Trakhtemir blocks are characterized. The role of glaciation impact on the formation of relief and tectonic structures is characterized. The close relationship between structural and tectonic processes and the development of geological hazazrds has been determined. This data identifies the regional pattern of natural hazards zones, the causal relation of tectonic movement on denudation and resultant cummulative impacts of landsliding, changes in landforms and cummulative human interface.
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Land use limitations as object of cadastal system
Authors O. Petrakovska, M. Mykhalova, O. Reutova and D. BohatyrSummaryLand use limitations mechanism is becoming increasingly important as a regulator of providing favourable living conditions for the population. One of the common types of land use limitations is a restriction of certain activities that lead to negative effects. The methods of decision-making of land use priority and restriction should, first and foremost, aiming at improving the living conditions of the population; preservation the ecological stability and the land value, ownership guarantee as well as enhance their investment attractiveness. The aim of the article is to structure the types of land use limitations depending on their features and environmental and social impact. Research was based on the analysis of legal and regulatory acts, scientific literature, the analytical materials and cadastral information. The structure of land use limitations was presented in the article. The paper also highlights of modern geoinformation technologies using which allow to visualize complex geospatial information about land use limitation for achieving transparency and openness of the decision-making process.
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Modern scientific approaches to maps quality assessment
Authors D. Liashenko, V. Babii, O. Boiko, R. Spytsia and V. PutrenkoSummaryThe peculiarities of modern trend of Industry 4.0 and its influence on maps and spatial services production are discussed. The interdisciplinary approach of maps quality assessment in geomatics and cartography is determined. The maps quality should be analyzed by cartography, cognitive sciences, useability engineering etc. The experience of spatial data and maps quality assessment is given. The conceptual model of the map’s quality assessment is offered. An emphasize on values of maps for an individual, science and society is given.
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Certain aspects of risk influence assessment of the river basin
Authors L. Zuzuk, N. Goptarova, V. Khomyn, O. Paliychuk and G. ZhuchenkoSummaryThe work is to assess certain aspects of hydrogeological conditions and the regime of the Dniester River, the development of elements of methods for assessing the risks of flooding of the river basin. It is established that the causes of catastrophic floods are both natural factors and economic activity.
Natural factors include: changing hydrometeorological (synoptic) situation and morphological structure of mountain riverbeds (uneven runoff distribution over time; high water content of rivers before floods; geological and orographic and hydrogeological conditions).
Factors of economic activity that have a significant impact on the formation of flood runoff include: plowing and deforestation of watersheds without the use of anti-erosion measures, violation of the technology of cultural and technical works, which accelerates surface runoff; violation of the management regime in water protection zones and coastal water protection strips of rivers; construction in areas of possible flooding and floodplains
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Modeling of oil and gas potential of the Ediakaran basin of Podillya
Authors Y. O. Tkachenko and V. A. NesterovskySummaryThis work is concerned with the study of Ediacaran petroleum potential within Podillian. To conduct the detailed study we used the litho-stratigraphical, geological, geothermal, geochemical, and paleohistorical analysis for the Ediacaran section to determine its oil and gas prospectives.
The potential source rocks, reservoirs and seals within the study area were defined and described.
Based on the computer-integrated instruments were studied: catagenesis, maturation of organic matter, and concentration of organic carbon.
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Algorithm research and evaluation of minimum water flow of mountain rivers using GIS
Authors O. Pochaievets, O. Obodovskyi, O. Lukianets and V. GrebinSummaryModern climate change has a significant impact on people’s daily lives. They are manifested in various areas of the economy in the strengthening of environmental problems. However, the issue of monitoring hazards resulting from climate change remains essential. According to the WMO classification, there are several types of droughts: meteorological, hydrological, agricultural and economic. The onset of any of these can lead to catastrophic consequences.
For a long time, geographic information systems (GIS) have significantly improved the ability to assess and monitor all geographical processes. The use of their tools is gaining momentum, especially in hydrological research.
Moisture shortages caused by climate change can lead to hydrological droughts, which affect water consumption and drinking water supply, water use in various sectors of the economy, protection of water resources from pollution and depletion.
According to the algorithm for estimating the minimum water runoff of mountain rivers, calculations of the Tisza basin’s minimum runoff within Ukraine using GIS were performed. As a result, methodological approaches to constructing the spatial distribution of hydrological characteristics of mountain rivers have been developed.
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Using the Surface Algal Bloom Index to assess the ecological state of a small river an urbanized area and the possibility of its revitalization
Authors L. Plichko, V. Zatserkovnyi, V. Khilchevskyi, A. Ilchenko and O. NikolaienkoSummaryThe article assesses the ecological state of the small Stryzhen River in the urbanized territory of the city of Chernigiv (Ukraine) using remote sensing (RS) materials. On a significant part, the river has been turned into a cascade of ponds. The spectral index Surface Algal Bloom Index (SABI) for assess changes in the ecological state of the river, was used. As a result, a series of images of the study area for 1990 and 2020 was obtained, which were assessed changes in the quality of surface waters for this period based on changes in the biomass of algae on the water surface. A comparative analysis of a series of images showed that over 30 years the state of water bodies has changed significantly. The process of eutrophication and the shallowing of the ponds created on the river accelerated. Water bodies are losing their recreational value. A way out of the situation could be the revitalization of the Stryzhen River. By revitalization means the complete restoration of the river or its certain sections at the level of the period of time when the river was not regulated.
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Geoinformation support data analysis of monitoring studies (on the example of air pollution)
Authors E. Bondarenko, M. Kyryliuk and O. YatsenkoSummaryThe publication presents the scientific and practical result of regional mapping with the creation of a recommended animated map of air pollution according to AQI PM 2.5. It acts as a dynamic information environment both in terms of indicators and applied graphical variables.
Possibilities of geoinformation support of the analysis of monitoring research data are demonstrated in the algorithm of cartographic modeling of fast-changing phenomena developed by the authors, which consists of successive stages: choice of interpolation method; setting data interpolation parameters; setting up a data processing environment; mapping of monitoring results; coordination of mapping results; presentation of results.
The properties of the created map are substantiated, which distinguish it as a monitoring one and allow it to be used as intended (the map content is based on the use of actual indicators of systematic observations of air pollution levels; the map directly provides the modeling stage in the environmental monitoring system; in the place of its fixation and on the whole territory of the map, makes it possible to identify critical values of the indicator in the territory of mapping; to carry out optimization) to improve the state of the environment as a whole and by components).
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Classification and discriminant functions of alpha- beta radioactivity parameters in oil and gas geophysics
Authors O. Shabatura, S. Vyzhva, V. Onyshchuk and I. OnyshchukSummaryThe specific alpha and beta activity (Aα and Aβ, respectively, in Bq / kg) of core samples from sedimentary rocks of Runovshchyna area (Ukraine, Poltava region) were performed in during of the petrophysical investigations. The active role of sulfur, water and chlorine was revealed by regression model of Aα from the composition. These components are responsible for changing the redox conditions under which uranium is immobilized. As well K2O and H2O are leading component affecting the Aβ. The factorial experiment of regression coefficients revealed its interrelated influence but only H2O can be formally considered an independent feature of model. The ratio Aα:Aβ can be used to classify the clastic rocks. The сlaye of sandstone is better efefcted in Aβ values rather Aα. Sandstones without of the obvious claye/carbonation evidances have the Aβ value of 816, whereas in clay varieties the average value is 1924. Carbonated sandstones, on the contrary, it decreases slightly to 803. Samples of rocks with a high content of carbonized residues usually have negative correlation between Aα and Aβ. The proposed discriminants and classification dependences of Aα and Aβ can be used as independent geophysical parameters for exploration purposes of oil and gas geology.
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Geoecological aspect of Kyiv metropolitan area geoinformation support management
Authors D. Liashenko, V. Babii, O. Boiko, P. Trofymenko, N. Trofymenko and D. PrusovSummaryThe peculiarities of GIS approach to urban spatial management are discussed. The main issues of society-environment spatial conflicts in metropolitan city area are determined. Some peculiarities of Kyiv metropolitan area geoinformation support management are described. There are as following: air pollution, waste disposal, surface and ground water pollution, noise pollution. The experience of spatial data analysis of waste monitoring with Google Earth Engine is given. The recommendations for environmental pollution effect identification are proposed. The Kyiv metropolis geoecological state GIS functions are worked out.
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Lineament structural analysis of REE-Th-U-deposits within the Ukrainian and Canadian Shields
Authors K. Poliakovska, I. R. Annesley, O. Ivanik, J. Sykes and A. OtsukiSummaryStructural mapping, including lineament analysis, is an important geological tool used to identify the prevailing tectonic trends within a study area. Lineaments are straight to curvilinear landforms that are widely distributed across the Earth’s surface and are closely related to underground concealed structures, such as faults, shear zones, and folds. In this study, lineament extraction was carried out using both manual visual identification and automatic extraction approach with the suitable software.
The results obtained are giving additional insight to the REE-Th-U mineral systems of the two Ukrainian and Canadian shield areas and providing vectoring guidelines for new discoveries.
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Time-space topological dataset for fuzzy logic mineral prospectivity modelling in mesoarchean terranes of Reguibat shield (Mauritania)
Authors I. Virshylo, V. Mykhailov, V. Zagnitko, D. Kravchenko and S. VolkovaSummaryThis research is devoted to the estimation of gold and uranium mineralization in MesoArchean Tasiast-Tijirit terrane. Study area located in Northern-west part of Reguibat shield (Western African craton). The first stage of the prospectivity model has composed a dataset with space-time topological relationships between the geological, geophysical and geochemical features. We used a fuzzy logic mapping approach to assess different hypothesis about time and type of ore process.
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