In considered article the results are presented of the carried out researches on high-mountainous lakes of the Tashkent area. Visual inspection of a modern condition of natural dams of considered high-mountainous lakes of the Tashkent oblast is carried out. On the basis of the analysis of visual inspection it is possible to note, that the common technical condition of natural dams of the submitted high-mountainous lakes safe and does not represent danger to downstream situated territories. It was carried out the modeling of occurrence of emergency situation on high-mountainous lakes of the Tashkent oblast in case of full or partial destruction of natural dams. By an available calculation method of flooding waves are determined its key parameters, height of a wave, speed of distribution of a wave of break on the certain distances and reaching time the given wave up to the certain distances. On the basis of calculation method have been calculated and put on cross-sections of the rivers Pskem and Kocy zones of possible flooding in full and partial destruction of dams of high-mountainous lakes. Results of the carried out calculations have been put on the digital map, created on platform ArcView 3.2a.

One of the main problems in the operation of hydrosystems for various purposes is the silting up of the reservoir. Silting up of a reservoir leads to a decrease in useful capacity. And, of course, the hydrosystem's facility will not be able to fully perform its functions. This issue is particularly relevant for territories located in the arid zone with transboundary rivers, whose water resources are used for industries with different types of water consumption (first of all, irrigation and energy). The most common type of cleaning of silted reservoirs currently used is hydraulic flushing. The advantages of this method are the simplicity of the technological process; the disadvantage is the large consumption of water for washing, which is especially important in conditions of constant shortage of water resources. A method for washing reservoirs of Indian-type hydrounits is proposed. The technique considers the characteristic design features of a particular hydroelectric complex, operating experience, and field research data (sediment characteristics). The proposed technique was applied at the Ravatkhodzha hydro complex.

In this article we consider the results of studying the problems and prospects of using information technologies to ensure the introduction of new innovative approaches in hydroecology and hydropower, the creation of GIS (GIS-geographic information systems) for hydroecological and hydro-technical monitoring, and also as a visual material for students studying the use of information systems in the development of environmentally acceptable modes of operation of hydraulic structures. The article was devoted to an actual theme - GIS-systems creation for hydro ecological monitoring as tool for support the information systems of the Aral Sea basin and optimisation models at development of ecologically applicable modes of exploitation of hydro technical buildings. It is possible and useful to use association of outputs from various scientific researches in one GIS-database as universal tool for modeling. As example of such approach can be consider as one interconnected system which combination results of work: - System of water-salt balances in all rivers of Uzbekistan. - System of digital maps and schemes that can be used in the development of environmentally acceptable modes of operation of hydraulic and hydropower facilities in Uzbekistan. - The Aral Sea basin monitoring systems (ASBMS) as a digital system of hydroecological monitoring of quality of surface waters on basis ArcView.

In this article, we also consider the results of studying the problems and prospects for the use of educational and research stands of the Department of Hydropower and Hydraulics and information technologies to provide modelling of physical processes and environmental monitoring. This will improve the methodology for the education of energy engineers to implement the program of measures for the further development of energy and renewable energy in Uzbekistan. As an example of such an approach, we can consider as one interconnected System that combines the results of work: Examples of methods for creating a virtual stand based on digital maps for information support of environmental monitoring of hydraulic structures; An example of an experimental stand for research on the operation of structures made of reinforced soil; Examples of stands for the study of hydraulic processes - an example of the development of instruments for hydrometric support. Experimental stands are given. Methods for creating hydrostatic pressure and own weight of the dam. Conclusions and recommendations based on the results of experimental research on educational research stands.

In this article, we also consider the results of studying the problems and prospects of using information technologies to ensure the introduction of new innovative approaches to analyze engineering infrastructure of future pumped storage hydropower. This study aims to develop a series of advanced Geographic Information System algorithms to locate prospective sites for pumped storage hydropower. It is possible and useful to use the association of outputs from various scientific researches in one GIS-database as a universal tool for modelling. This demonstrates the site searching algorithms can work efficiently in the identification of off-river pumped hydro sites, allowing high-resolution assessments of pumped hydro energy storage to be quickly conducted on a broad scale. As an example of such an approach can be considered as one interconnected system which combination results of work: - The examples of the methodology for creating digital maps for information support, for the study of the technical parameters of hydropower and irrigation facilities at the level of Tuyamuyun hydroelectric complex. - System of digital maps and schemes that can be used in the development of environmentally acceptable modes of operation of in engineering infrastructure of hydraulic accumulating power plants. - The results of monitoring engineering infrastructure using geographic information systems, digital maps are shown, which allow for the design, repair and repair of hydraulic structures to take into account terrain, hydrography and other factors. Except this in work are offered several objects water systems, in which will possible introduce pumped storage power and are motivated to their technical-economic parameters.