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18th International Conference on Geoinformatics - Theoretical and Applied Aspects
- Conference date: May 13-16, 2019
- Location: Kyiv, Ukraine
- Published: 15 May 2019
21 - 40 of 142 results
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Properties of acoustic axes in triclinic media
Authors Yu. Roganov, A. Stovas and V. RoganovSummaryWe derive the relations that describe the position of acoustic axes in a triclinic medium and their dependencies between these relations. It is shown that the five relations are necessary and sufficient for the description of all acoustic axes in any fixed coordinate system. The theory is demonstrated by two examples of the triclinic and orthorhombic media.
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Radon-prone Areas: the Ukrainian Shield case study
Authors T. Dudar, V. Verkhovtsev, Yu. Tyshchenko, L. Kyselevych and O. BuglakSummaryThe approach towards “radon-prone areas” is emphasized according to the European Basic Safety Standards requirements. Central Ukrainian Uranium Province is considered from the point of uranium geology and mining and radon-prone area view, where surveys indicate that the percentage of houses expected to exceed national reference levels is higher than in other parts of the country. The maximum amount of radon is established in the geodynamically active zones in overlapping rocks associated with new tectonic anomalies in parent rocks. The most hazardous are areas where new tectonic activation zones and uranium ore manifestations are met relatively close to the surface
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Supercomputer Modelling of Thermal Stabilization Processes of Permafrost Soils
Authors E. N. Akimova, M. Yu. Filimonov, V. E. Misilov and N. A. VaganovaSummaryThe paper is devoted to modelling of seasonal changes in permafrost soil under the climatic conditions that affect the formation of thermal fields in the ground. A model and algorithm for simulation of seasonal cooling systems and the effect of thermal stabilization of the soil is described. The parallel algorithm was developed and implemented on multicore processor using OpenMP technology. The numerical experiments illustrating the effectiveness of preliminary thermal stabilization of the soil under the base of the engineering structure are presented. The speedup of parallel algorithm was studied.
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Modeling and Forecasting flooded areas by means of geoinformation technologies
Authors O. I. Shyshenko, V. I. Zatserkovnyi and L.V. PlichkoSummaryThe use of modern methods of spatial analysis based on geo-information technologies (GIT) makes it possible to solve problems of accumulation, storage, updating and analysis of any spatial and/or temporal information, including hydrological, hydrogeological and engineering-geological. Possessing the ability to process such information, modern GIS allow building predictive models, creating scenarios of possible situations for quick and scientifically based decision making.The scientific rationale of geoinformation modeling and flood development forecasting to mitigate their negative impact using GIT is presented. The possibilities are presented and the main directions of the use of geo-information modeling in forecasting and visualization of flooding areas are shown.The use of ArcGIS software in algorithms of geoprocessing models for solving problems of flood forecasting as a tool for quick and visual express analysis is described.
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Parallel Implementation of the Conjugate Gradient Method for Solving the Inverse Gravimetry Problem on GPU
Authors E. N. Akimova, V. E. Misilov and M. A. SultanovSummaryThe paper is devoted to development and implementation of efficient parallel algorithm based on the conjugate gradient method for solving the nonlinear inverse potential problem of finding a boundary surface in two-layer medium. The algorithm uses the approximation of the Jacobian matrix of the integral operator based on dropping out the lesser elements and utilizing the Toeplitz-block-Toeplitz structure of the matrix. The parallel algorithm was implemented for the graphics processor using CUDA technology. The numerical experiments was carried out. Investigation of efficiency and speedup of the parallel algorithm was performed.
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Evolution of the paleostructures of the Kaniv dislocation by the results of morphometric investigations
Authors L. Tustanovska, V. Shevchuk, V. Zatserkovnyi and Y. KrucheniukSummaryThe morphometric maps that allowed revealing the stage and parameters of morphogenesis have been constructed, and a detailed scheme of tectonic evolution of the Kaniv dislocations has been developed demonstrating the high efficiency of the attraction of structural morphometry to a complex of geological study and mapping of complex regions in tectonics. By comparing and specifying the obtained results with the data of field geological and geomorphological observations, geological-structural and lithologic-stratigraphic data, five stages of the morphogenesis of the Kanev dislocations, which reflect their tectonic evolution, are established. The analysis of the results of structural and morphometric studies allowed determining the nature of the correlation of the relief with the tectonics of the region, to reflect the interconnection of exogenous and endogenous factors that influenced its development, to recreate the paleogeographical situation and the mode of develop ment of clay diapirism. Adapted the method of structurally-morphometric analysis to the GIS environment using spatial analysis and modeling, which allowed obtaining adequate models of various genetic surfaces of the paleo- and modern relief.
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Wind power stations construction at the mountain ecosystem – risk assessment and monitoring techniques
Authors O. Shevchenko and O. MenshovSummaryThe wind power stations are an important part of the green energy development. The aim of the present study is to investigate the nature and levels of the impact of wind power stations on the elements of the environment. As a testing site we selected the ridge of valley Borzhava in the Transcarpathia of Ukraine. There is under the negotiation the construction of 47 fifty-meter wind turbines with a capacity of 3–4 MW along. For the risk monitoring we attract geophysical and petrophysical measurements, geostatistical and geospatial analyses, remote sensing methods, and soil magnetism data. As a result we expect the determination of the electromagnetic fields, physical vibration and mechanical impact, including the effect of the sewage drainage facilities, acoustic waves, soil pollution and erosion, soil destruction, loss of the productive agricultural lands
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Gravitational monitoring substantiation by imitation modelling methods
Authors A.I. Tsiupiak, S.G. Anikeyev and B.B. HablovskyiSummaryThe methodology of gravitational monitoring imitation modelling is presented. The methodology of modelling makes it possible to determine the reflection character and intensity in the gravitational anomalies of spatial-temporal local changes in the densities structure distribution in the geological section and, conversely, to explore restore these changes, even small in size, from data about gravitational spatial-temporal local anomalies. The method of imitation modelling is a tool for assessing the ability high accuracy gravitational monitoring solve complex tasks of prognosis of post-tech and natural ecologically dangerous processes such as karst formation, a rock massif integrity destruction or control over mineral deposits exploitation.
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Application of the geographic information system technologies in the geosystem planning process
Authors M. M. Prykhodko, V. V. Romaniuk, D. V. Kukhtar, I. L. Bodnaruk and N. L. KhmilSummaryThe necessity to preserve and restore the natural environment, to ensure the ecological security of geographical formations are the priority conditions for implementation of the dominant social paradigm – development in harmony with nature. The unit of management, planning and design of environmentally safe geographic formations is the river basin. During the process of planning and designing of the environmentally safe basin geosystems, it is necessary to take into account the criteria for the optimal relationship between geosystems, the formation of the mosaic structure of the day surface, and the restoration of biotic and landscape diversity. The application of GIS-technologies enables performing faster and more efficiently: 1) analysis of the structure of the basin and the conditions of its operation; 2) the design of optimal ratios of the geosystems within the basin; 3) the design of a crop rotation system; 4) the design of the necessary ameliorative element s, a network of roads and other infrastructure components, and etc.
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GIS technologies for integrating cartographic materials into a single coordinate system
Authors O. Rodzinska, I. Perovych, L. Perovych and O. LudchakSummaryThe problem of using cartographic materials of various thematic directions, executed on different scales and coordinate systems, is extremely relevant, since, on the one hand, it allows to trace the dynamics of the phenomena and processes, and, on the other, to make substantiated decisions regarding the sustainable development of territories. The purpose of this study is to present the developed technology of integration of cartographic materials made in different epochs and in different coordinate systems into a single frame of reference. Research methods - systematic spatial analysis of cartographic materials, the possibility of using ArcGIS software and remote sensing data. The scientific novelty consists in developing a technological model of integrating cartographic materials into a single system. Practical realization of a theoretical research is carried out in a separate settlement during a process of land valuation works.
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Modeling of ore-magmatic system Sukumaland (Tanzania)
Authors V. Mykhailov and O. AndreevaSummaryBased on the interpretation of space imagery, in the western part of the metallogenic province of Lake Victoria in Tanzania the Sukumaland ore-magmatic system of concentric-zonal structure has been distinguished. It is formed by a group of arched greenstone belts (GSB) and associated gold deposits. They form two arc-like branches: the internal and external branch, differing in their composition and structure. The internal arc is represented by the Rwamagaza and Kahama GSB with gold deposits of Tulawaka, Buckreef, Mawe-Meru, Tembo, Bulyanhulu. The external arc is represented by Geita and Mabale-Buhungurica GSB with gold deposits of Ridge-8, Nyankanga, Geita, Matandani, Kukuluma, Nyanzaga, Kitongo, Golden Ridge. Their huge gold potential (over 50 million ounces of gold) stipulates for the urgency of the study of this gigantic structure. The most interest is the kernelpart of the ore-magmatic system, where occurrences of volcanism and gold or other mineral deposits ha ven’t been indicated yet, but a tectonic pattern of its structural elements indicates its significant ore potential. It is assumed that the ore-magmatic system has originated and evolved as result of a complex multi-stage ore-magmatic process under the influence of upward flows of deep fluids due to the long-term functioning of a zone with anomalously heated mantle in that area. During further geological explorations it is recommended to take into account the predicted availability of a common integrated sustained ore-magmatic system and their structural features.
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Development of the tool to construct trend diagrams of shifted atomic ratios intended for chemical classification of metasomatic rocks
Authors A.V. Andreyev and V.A. SinitsynSummaryMethodology is presented and diagrams as a tool were at first proposed to perform classification of metasomatites based on chemical characteristics. The publication contains the definitions of classification categories (object, subject and criteria) for metasomatic rocks. The technique of plotting is described and application examples of the diagrams are presented. Besides that, the requirements to initial data and limitations of usage for the proposed diagrams are pointed.
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Microtopography of the zircon crystal faces as essential component in modeling of the mineral formation process
More LessSummaryThe results of the microtopography study of the zircon crystals surface from different geosystems are presented.
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Geoinformation Support of Increase of Efficiency of Soil Cleaning from Petroleum Pollution
Authors O.K. Tiapkin, A.L. Lozovyi, A.O. Burlakova and P.H. PihulevskyiSummaryThe paper discuss geophysical possibilities of increase of geoinformation support monitoring the petroleum contamination inside and nearby of large working industrial enterprises for effective clearing of soil and ground waters. It's CLEANSOIL – new very simple and cost-efficient modern technology to enable in-situ treatment of ecologically dangerous hydrocarbons in soil, especially targeted for large polluted areas of working industrial enterprises with minimum site (and technological process) disturbance. The monitoring with detailed 3D modeling of the polluted sites is necessary for effective application of CLEANSOIL. It is possible at use of the modern technology of electro-tomography, which essentially raises accuracy and speed of geophysical possibilities of monitoring of soil and ground water pollution both in horizontal and in vertical directions. If only classical vertical electrical sounding is possible (because of conditions of the working industrial enterprise) the author's algorithm of recalculation of the data for electro-tomography is offered
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Geoinformation support of effective water resources management of coal mining regions of south eastern Ukraine
Authors V. G. Andrieiev, L. B. Anisimova, A. O. Burlakova, O. K. Tiapkin and Yu. S. KravtsovSummaryOne of the main priorities of Ukrainian national ecological strategy is establishment of integrative water resources management in old industrial regions (and first of all in coal mining regions – 26 % territory of Ukraine, where the biggest consumers of water are located) for their preservation and reproduction. The problem has increased in South Eastern Ukraine since 2014, because of military operations in main territory of the Donbas and corresponding great increase in coal production in Western Donbas. The most pressing environmental problems in natural waters of Western Donbas are pollution of rivers with insufficiently purified industrial effluent (~14 millions m3 / per year of highly mineralized mine waters – up to 7 g/dm3) and, as a result, a decrease in the ability of aquatic ecosystems to self-purify and self-repair. Some options for the use and minimization of negative impact of mine waters on natural water bodies (incl. removal of the waters beyond the boundaries of Western Donbas to river Dnipro, saline lake Sivash, Black Sea and Azov Sea) were estimated with integrated databases. The advantages and disadvantages of these options are revealed. Only complex use of these schemes is necessary for effective integrative water resources management of south eastern Ukraine
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Optimization of method for gas-dynamic research of wells
Authors A.O. Trubenko and N.V. DubeiSummaryThe rational system of development gas fields and the operation of underground gas storage facilities are directly dependent on the amount of information received from each well, i. e. the degree of study productive formation. The most important sources of information about the gas layer and the wells of gas field are the gas-dynamic methods research of wells. The research results are processed by binary equation of gas flow to the well bottom. The coefficients of filtration resistance determined in the research process are used in the future to calculate the technological operating conditions of well and gas-dynamic calculations of options for development gas deposits or cyclic operation in UGS. Studies are conducted at four or six steady state modes. However, carrying out such complex of studies for operating gas fields and UGS with the number of wells 100–300 or more due to certain difficulties. First, they require a high cost of working time and a partial declin e in productivity of deposit or UGS; and secondly, the reliability of determination research parameters is often low due to incomplete stabilization of well operation mode. The article proposes an accelerated method of research for gas wells in steady-state regimes using the power formula of gas flow to the well bottom. The application of this method to gas deposits and underground gas storage facilities of Precarpathian has made it possible to significantly accelerate the research process in wells without substantial reducing the reliability of their results.
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Remote monitoring of winter crops' development using the satellite data
Authors P.I. Trofymenko, N.V. Trofimenko, S.I. Veremeenko and O.A. FurmanetsSummaryThe article presents the results of research of the using of satellite images of Sentinel 2A to monitor the development and assessment of the condition of winter wheat and winter rape on sod-podzolic soils under the conditions of Ukraine's Western Polissya. For these purposes, channels with a range of 0. 4 - 2. 5 μm were informative, on the basis of which the vegetative indices NDVI and RNDVI were calculated. It was shown, that the data obtained from the photos of the main stages of the organogenesis during the autumn-winter period of the studied cultures can determine: the area of damaged crops, habitats with different levels of mineral nutrition of plants, doses for nitrogen fertilization and the predicted levels of yield. It was established that the average value of the NDVI index (0.47–0.52), which corresponds to the average value of nitrogen fertilizers, is the starting value for the calculation of the nitrogen fertilizer dose for the winter whea t test fields.
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Evaluation of the Kalush mineral complex dangerous influence on the groundwater and the Dnister river basin pollution
Authors U.O. Dzoba, S.M. Bagriy and E.D. KuzmenkoSummaryThe paper examines underground and surface waters pollution problem at the Kalush Mining Complex in the Carpathian region territory. The aquifer salinity estimation using the geophysical methods is carried out. The regional direction components of the groundwater movement, the mineralization propagation and the hydrogeological connection of the aquifer with the river basin degree are established. Rivers Limnytsia and Dnister pollution risk estimation on the basis of the quantitative characteristics of the main sources of pollution (tailing ponds, accumulating reservoirs, saline removal and quarry) is given.
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The causes of the negative results of drilling wells in the cretaceous deposits of the outer zone of the Pre-Carpathian foredeep
Authors A. P. Boiko, I. R. Mykhailiv and M. O. KarpenkoSummaryDespite the fact that in the outer zone of the Pre-Carpathian foredeep, are drilled a significant number of wells in the Mesozoic sediments (including Cretaceous sediments), today there are revealed a small number of fields. In this article we describe the causes of lack of inflow of oil (negative results of drilling) in the Cretaceous sediments.
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The application of the PRMS-SPE standard to geo reserves of oil and gas in Ukraine
Authors I. R. Mykhailiv and M. O. KarpenkoSummaryThe PRMS-SPE is one of the leading international systems for the assessment of hydrocarbon reserves and resources, according to which their categories and classes are distinguished by the degree of study of deposits (reliability), the expected economic effect of their development and the state of existing wells. The calculation of hydrocarbon reserves of the gas field according to the PRMS-SPE criteria has been performed and a comparison of the results with the requirements of the Classification of Mineral Reserves and Resources of the State Subsoil Fund has been performed. It is established that the calculated volumes of hydrocarbons are to a certain extent comparable in size, but are redistributed among themselves by different groups and categories, and reserves/resource reporting for these two standards is fundamentally different, as determined by the differences in approaches to categorization and establishing the boundaries for which the inventory is calculate d.
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