The thesis deals with the task of solving the scientific and engineering problem of improving the urban water objects monitoring on the basis of a three-dimensional cadastre.
The scientific novelty of the work is as follows.
For the first time:
- the expediency of using three-dimensional models for accounting and monitoring the use of water bodies in the settlements of Ukraine is substantiated;
- the factors that affect the effectiveness of decision-making regarding the use of water bodies are systematized and structured;
- an approach to the integrated assessment of the decision-making effectiveness on the use of water bodies, based on the logarithmic Cobb-Douglas function, is proposed;
- information about water bodies in three-dimensional cadastral systems is structured.
Also improved:
- methods of water bodies monitoring and passporting within settlements;
- a system of methods for obtaining three-dimensional information about water bodies;
- methods of calculating the fee for the use of water bodies.
The practical significance of the obtained results is that the author proposed a technology for accounting and monitoring the use of water bodies of settlements on the basis of a three-dimensional cadastre. This technology simplifies and optimizes the processes of obtaining, accumulating, processing and providing information about water bodies, creating a single information environment for decision-making. The obtained scientific results can be used to improve the legal regulation in the field of accounting and monitoring of water bodies and the calculation of fees for special water use and other uses of water bodies.
As a result of the analysis of modern tendencies and problems of use of water objects within settlements, and also methodical bases of their monitoring using the three-dimensional cadastre, the following conclusions are made:
1. The process of harmonization of domestic and European legislation on water bodies monitoring is complicated by different approaches to their classification.
2. The low level of land management documentation provision on the established boundaries of water bodies, water protection zones and the imperfection of the mechanism of their state registration as an integral regime-forming object leads to uncontrolled use of water fund lands.
3. The low efficiency of monitoring of water bodies in Ukraine is due to the lack of unified approaches to accounting, a single information system and uncoordinated relationships of monitoring entities. Improved efficiency can be achieved by using different types of monitoring and display of three-dimensional information in the 3D cadastre.
4. The set of factors that determine the efficiency of water bodies is combined into srven aggregate thematic groups: informational, technological, environmental, economic, legal, institutional and social. Expert assessment of various groups of factors proves that the most significant are information, among which the most important factor is the provision of geospatial information.
5. An integrated assessment of the effectiveness of the implemented solutions and forecast results for the use of water bodies can be obtained by applying an algorithm based on the logarithmic Cobb-Douglas function.
6. The basic structural element of the 3D cadastre of water bodies is geospatial three-dimensional data. To obtain three-dimensional information about water bodies in urban conditions of compacted buildings, it is most appropriate to use remote sensing methods, including an automated unmanned survey system.
7. The most effective way to organize data in the geographic information system "3D cadastre of water bodies" is an object-oriented data model "Geodatabase", and the most optimal software - ArcGIS. Self-sufficiency of the geographic information system, as a requirement of INSPIRE, is provided by free access of users through the geoportal, with the differentiated mode of payment, depending on completeness of functionality.
8. Three-dimensional information about water bodies allows to improve the mechanisms for calculating the fee for the use of water bodies, which leads to fairness and optimization of the tax burden.
The obtained scientific results determined the need and provided an opportunity:
1. To propose and substantiate the expediency of using three-dimensional models for accounting and monitoring of water bodies of settlements of Ukraine.
2. Develop a structural model for obtaining three-dimensional information about water bodies.
3. Build a structural and logical model of information layers of the 3D cadastre of water bodies.
4. Develop a conceptual model of 3D cadastre as a means of monitoring water bodies within settlements and calculate its effectiveness.
