Factors and characteristics of the spatial correlation of the annual runoff of the Upper Ob basin rivers |
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Authors: | N. V. Goroshko D. A. Burakov |
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Affiliation: | (1) Novosibirsk State Pedagogic University, ul. Vilyuiskaya 28, Novosibirsk, 630126, Russia;(2) Krasnoyarsk Center for Hydrometeorology and Environmental Monitoring with Regional Functions, ul. Surikova 28, Krasnoyarsk, 660049, Russia |
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Abstract: | The main features of the spatial and temporal oscillations of the annual runoff of the rivers in the Upper Ob basin, which is characterized by various landscape and hydrologic conditions, are discussed. It is found that the coefficients of pair correlation of the annual runoff have been decreasing since the late 1990s-early 2000s. Correlation functions for mountain areas should be constructed separately for river basins ranked according to the prevailing type of river feed. The coefficients of pair correlation can be described by multiple regression equations, which, apart from the distance between the centers of gravity of the basins, may include landscape characteristics such as the difference in their average elevation and forest cover. |
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