Importance of using GIS software in the process of application of Analogue terrains and Counter-approach technologies in water resources assessment
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Abstract
The research is devoted to the wider application of GIS technologies in hydrological studies, especially in the assessment of water resources of rivers. Runoff formation is a very complex process that occurs under the influence of multiple factors. Studies show that the more flow-forming factors that are considered in the assessment process, the more accurate and reliable the results are. The practice of studying water resources based on the analogy of observed and unobserved river basins is a widespread approach in hydrology. Previously, analogies created on the basis of one or several predictors did not allow to obtain reliable results in the selection of analogue terrains. Modern scientific innovations have enabled more detailed analysis and modeling of runoff-forming processes. With our proposed method, analog geo-spaces are selected based on the similarity of most components through space information, and assessment is performed using GIS and other multifunctional technologies. Another advantage of the assessment with the new method is the ability to easily restore climate and runoff data for unobserved and extreme regions. Thus, on the basis of basins with hydrometeorological data, it is possible to estimate the water resources of any other unstudied rivers with high accuracy without time-space restrictions. Comparison of the actual and calculated by the proposed method of runoff for most of the river basins of Azerbaijan shows that the error between them was up to 10% in 92 cases out of 100.
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