OGIMET

OGIMET⁴ is a Weather Information Service which provides data that includes historical daily summaries from surface synoptic observation (SYNOP) reports starting from the year 2000. SYNOP reports are meteorological alphanumeric messages for reporting observations from more than 10,000 meteorological stations around the world. Reports are mostly available every 6 h (00, 06, 12 and 18 UTC), but for some stations every 3 or 1 h. The format of these reports is standardized and defined by the World Meteorological Organization (WMO). OGIMET daily summaries from 61 SYNOP stations, of which 28 are in Serbia, were used for the spatial interpolation of meteorological variables (Fig. 1). The remaining 33 stations in a 100-km buffer around the Serbian border were used for a more accurate spatial interpolation, especially in the areas near the Serbian border.

The outliers for OGIMET precipitation daily summaries that were four times larger than (a) the maximum of the surrounding observations, i.e., observations in a radius of 100 km and (b) the corresponding E-OBS value (see section E-OBS) were detected and removed.

A summary of the statistics for each of the meteorological parameters is given in Table 2.

Summary of the statistics for the selected variables in OGIMET daily summaries for the period 2000–2019.