Ukr. geogr. z. 2020, N2:13-19

O.A. Skrynyk - National University of Life and Environmental Sciences of Ukraine, Kyiv;
V.I. Osadchyi - Ukrainian Hydrometeorological Institute, Kyiv;
T. Szentimrey - OMSZ Hungarian Meteorological Service, Budapest, Hungary;
Z. Bihari - OMSZ Hungarian Meteorological Service, Budapest, Hungary;
V.P. Sidenko - Ukrainian Hydrometeorological Institute, Kyiv;
D.O. Oshurok - Ukrainian Hydrometeorological Institute, Kyiv;
D.O. Boichuk - Ukrainian Hydrometeorological Institute, Kyiv;
O.Y. Skrynyk - Ukrainian Hydrometeorological Institute, Kyiv.


The paper presents the results of geospatial interpolation of climatological data (monthly averages of daily minimum, Tn, maximum, Tx and mean, Tm, air temperature in Ukraine) into a regular grid with the spatial resolution of 0.1o. The interpolation has been conducted by means of the meteorological software MISH (Meteorological Interpolation based on Surface Homogenized data basis) developed at the Hungarian Meteorological Service. Homogeneous data series of 178 Ukrainian meteorological stations covering the period of 1946-2015, previously obtained at the Ukrainian Hydrometeorological Institute, have been used as the base for the interpolation. The MISH algorithm adopts the ideas of geostatistical spatial modeling (like e.g. krigging), but takes advantages of valuable climatological/statistical information contained in long homogenized data series. Terrain elevation, local topography components (AURELHY, 15 first values) and a distance to the Black Sea and the Sea of Azov seashore have been used as additional predictors. The interpolation accuracy has been estimated based on the cross-validation procedure. The main result of our work is the database of grid time series: values of Tn, Tx and Tm at the regular grid points for each month of the period of 1946-2015. The result can be used both for regional climate studies and for adjacent areas where climatological information is necessary and essential.

Key words: 
climatological fields, air temperature, spatial interpolation, relief, MISH, Ukraine

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