International Conference of Young Professionals «GeoTerrace-2020»

When solving engineering and geodetic problems, it is necessary to determine the position of the device in space, as well as to find the height of the object relative to the established mark. The construction of buildings or engineering structures requires constant monitoring of the mounting horizon position. Such problems are mostly solved by transferring the mark to the mounting horizon by geometric leveling. Such measurements are often associated with problems with meter location. The method of trigonometric leveling is burdened by errors in measuring vertical angles which are significantly affected by vertical refraction. One way to solve this problem is to apply linear measurements to points of mutually perpendicular bases. The accuracy of linear measurements by modern electronic tachometers is quite high.

In the investigation the analysis of MEMS sensors for future research in geodetic monitoring systems on two examples is performed. Firstly, the heights of special points on the metal ruler are determined by various devices including 3 smart phones with different MEMS sensors. This approach could be used for special tasks, but it is not enough for the creation of an automated monitoring system based only on the phone MEMS sensors. Secondly, the accuracy in the dynamic and static mode of the Bwsensing NB-WM 410 with MEMS sensor is investigated. Using the special system with the Leica 1205 total station, it was found that the accuracy of the inclinometer 0.01° could be used in some tasks of geodetic monitoring at constant measurement temperatures. Power and data transmission via WIFI channel is configured, which allows automating the measurement process. The special data from devices is transmitted to the server, recorded in a table, and displayed on graphs. In the future, it is planned to develop software that will report the danger if the permissible limit is exceeded.

The paper deals with the essence and main directions of the complex analysis of the river systems state in mountain and highland regions of Ukraine. Their functioning (as water, sediments and dissolved substance runoff riverbed morphology changes under influences of the riverbed and slope processes) and long-term changes in the morphology and geoecological state of the rivers and their catchments due to natural and man-made factors are characterized. The investigations were based on comparative morphometric analysis of the river systems structure, field and stationary observations of the nature components state within the catchments, determination of the anthropogenic pressure on the landscapes. As the result the tendencies, scales and intensity of transformation and degradation processes development in different parts (subbasins) of the river basin systems in the Polissia, Volyno-Podillia, Precarpathians, and Ukrainian Carpathians have been ascertained. The measures for improvement of the river basin systems state and optimization of nature use have been proposed.

Interactive web maps are one of the essential components of modern web resources and have extensive opportunities for the displaying of large arrays of different information. Visualization of these data on the traditional maps has several significant restrictions. We have developed an interactive web map of prominent personalities of Institute of geodesy of Lviv Polytechnic National University. For this purpose, we have processed the selection principles of prominent personalities. By the time parameters, we have included into the list of personalities corresponding employees of the geodetic chairs, that have been functioned in Polytechnic since the day of the founding of geodetic faculty. We have included following categories: 1) deans of the Faculty of Geodesy and directors of the Institute of Geodesy; 2) heads of the chairs; 3) prominent scientists; 4) prominent graduates. The processing results have been transferred into the tables and exported to *.csv format, which is frequently used to transfer data between different platforms. As follows, data has been exported to the universal format, which can be used for the import of primary attributive information into web services as well as to web libraries. The processed methodic and technology of the development of interactive maps can be applied for the development of appropriate web resources of other scientific-educational institutes of the Lviv Polytechnic National University.

The Main Astronomical Observatory NAS of Ukraine started its GNSS activity in early 1990s taking part in some international epoch campaigns. In December 1997 MAO installed the first Ukrainian permanent GNSS station in Kiev (GLSV). Today the Observatory's network consists of five permanent stations located in different parts of Ukraine and included in IGS network, EPN, EPOS network. MAO maintains its Operational Centre, Local GNSS Data Centre, Local GNSS Analysis Centre. As result of MAO second reprocessing campaign and regular processing of all available observations data from the Ukrainian stations, the coordinates in the IGb08 reference frame and tropospheric zenith delays were received. The velocities for 128 stations that had observation periods more than three years were estimated. The obtained results made possible to calculate strain ellipses and rotation for Earth's surface and to conduct geodynamic studies at the local level. The Main Astronomical Observatory NAS of Ukraine takes part in two international GNSS projects – EPN Densification and CEGRN.

The recreational and tourist resources analysis of landscapes of national natural parks (NNP) and regional landscape parks (RLP) of Western Ukraine for tourism and recreational development have been carried out. Peculiarities of GIS technologies application have been revealed and new data have been received. The GIS of RLP created on the example of “Ravske Roztochchya” which covers five main blocks such us: initial data (including field research), RLP topography (including digital relief model (DRM) and special thematic maps-schemes of steepness and slopes exposure), land, anthropogenic impact, and functional zoning. The geoinformation analysis that has been conducted gave grounds to establish that in the land plots structure of RLP “Ravske Roztochchya” ecostabilizing lands should occupy not less than 58.7% of their total area. And vice versa, eco-destabilizing lands can occupy no more than 41.3% (arable land - 31.7%). Based on this, an optimized land structure has been developed, which stabilizes the recreational and tourist potential of the park's landscapes. Similar studies have been conducted on the landscapes of the “Skoliv Beskydy National Park”.

The article presents GIS for assessing the agricultural potential of the Polissya of Ukraine, the use of which allowed for the territorial differentiation of soil cover by the presence of particularly valuable soil groups, to establish the value of the overall assessment, as well as the assessment of the potential of growing winter wheat and potatoes. Developed on the basis of the developed GIS complex of mapping schemes assessment of soil potential of Polissya Ukraine, allowed to locate territories with the highest values. According to the List of especially valuable soil groups, the place of significant distribution of especially valuable soil groups of national and regional importance was established and territorially separated on the map. It is shown that the main agricultural potential of the study area is concentrated in the Central and Left Bank Polissya. The largest areas of soil with a score of 37 to 57 points and above are concentrated in the central and eastern parts of Polissya, which indicates the significant investment potential of these territories. According to the results of the arable land bonitet scale, maps with accurate depictions of Polissya districts, which are most suitable for winter wheat and potato cultivation, were constructed.

The aim of the research is to define trends and characteristics of geoinformation monitoring of land use objects of the ecological network of regions. To achieve this goal the following tasks are solved: 1. Characteristics of methods of formation geoinformation support of monitoring of land use of objects of ecological network of regions. 2. Determining the directions of development and implementation of the method of integrated assessment of the level of formation and use of land objects of the ecological network of regions. 3. Definition of practical aspects of formation of geoinformation support of monitoring of use of lands of objects of an ecological network of regions.

The formation and development of Ukrainian cities are one of the most important tasks in the development of the innovation potential of the regions on the basis of increasing their attractiveness to residents by reducing the environmental impact of underground real estate use. Given the views of scientists on solving the problems of environmental factors of underground real estate use, it should be noted the lack of clear solutions and integrated approaches. The application of mathematical methods and models for the study of the influence of environmental factors on the use of underground real estate lands within the framework of an integrated approach will allow us to determine the standardized indicator and give appropriate recommendations. The purpose of the study is to quantify the impact of environmental factors on the use of the underground real estate.