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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Imprimer: 0018-8166
ISSN En ligne: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v35.i2.10
pages 1-12

The Norm and Variability of the Annual Flow of Rivers of Ukraine

A. I. Shereshevskiy
Ukrainian Hydrometeorological Research Institute, Kiev, Ukraine
P. F. Vishnevskiy
Ukrainian Hydrometeorological Research Institute, Kiev, Ukraine

RÉSUMÉ

The paper is devoted to the study of water resources of Ukraine on the basis of the Hydrometeorological Service's observations on the Ukrainian rivers. The normal runoff and variation of overland runoff coefficient had been determined and analyzed for the period of observation (before 1975 and with modern data collected up to 1992). As a result, the modified maps for normal runoff and variation coefficients of runoff for Ukrainian rivers were created. The comparison of hydrological parameters of water runoff calculated using of modern data (1992) with data obtained by prior studies in 1975 were made, when governing documents for construction regulation had been developed. This study shows that for the period 1975−1992 the normal runoff increased while variation runoff coefficients for the territory of Ukraine decreased. However, in general the trend on degradation of water resources was not observed.