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Information × Registration Number 0222U003110, 0119U001788 , R & D reports Title Establishment of spatial-temporal tendencies and statistical characteristics of the annual average runoff and its intra-annual distribution, and evaporation from the water surface in the Siversky Donets River Basin popup.stage_title Head Horbachova Liulmyla O, Registration Date 18-02-2022 Organization Ukrainian Hydrometeorological Institute of the State Emergency Service of Ukraine and the National Academy of Sciences of Ukraine popup.description2 The restoration and prolongation of the observation series of the mean annual streamflow were carried out by the application of the pair regression method according to the analogue rivers. It is shown that of observation series of the mean annual and monthly streamflow are homogeneous and stationary. Modern statistical parameters of the mean annual streamflow and its intra-annual distribution, and evaporation from the water surface in the Siverskyi Donets River Basin are determined. It is shown that for most observation series the best correspondence between empirical points and analytical distribution curves is achieved by the method of maximum likelihoodfor the triparametric gamma distribution curve. The spatio-temporal distribution of the mean annual streamflow (norms) and its coefficient of variation in the Siverskyi Donets River Basin is presented in the form of digital surface maps, which were created in MapInfo GIS using the TIN-interpolation method. Regional formulas for determining the values of evaporation from the water surface in the Siverskyi Donets River Basin have been developed.  Product Description popup.authors popup.nrat_date 2022-03-09 Close