PASSPORT OF THE RIVERS OF KAZAKHSTAN

This article discusses the structure and content of the passport of the rivers of Kazakhstan, which is based on the accounting of the main morphometric and morphological features of natural watercourses and their catchment basins. These features reflect the hydrographic characteristics, the definition of which is part of the task of mapping hydrological processes. Over time, the surface of river catchments undergoes changes due to a number of natural causes and anthropogenic activity, which accordingly changes the values of their morphometric characteristics. In this regard, dynamic characteristics need to be updated when there have been changes in water bodies or their catchments, which, when calculating hydrological characteristics, affect their accuracy. In this paper, the structure of the passport of the rivers of Kazakhstan is considered, which is a reference material, which combines information on rivers and temporary watercourses throughout the territories of Kazakhstan on water basins. In addition, it includes all natural watercourses with a length of more than 10 km and studied rivers with a length of less than 10 km. The certification of rivers is the first step, since the development of the form of passports of water bodies in the Republic of Kazakhstan is being carried out for the first time.