A comparison of satellite solar radiation values with the ground at three territorial levels (country, region, metro) was conducted. The feasibility of using satellite data resolution of 0.25 ? 0.25 degrees at these levels in models of crop productivity in the absence of ground information was Determined. The smallest difference between satellite and ground-based data observed at the country level, which is associated with significant averaging the values of solar radiation at this level for both satellite and ground-based data. The largest discrepancy is observed at station level due to the large difference in the spatial scale of measurement values (station – at the point of measurement; satellite – measure in pixels of 0.25 ? 0.25 degrees).
Keywords: solar radiation, ground data, satellite data, comparison.