Seasonal analysis of warm days in Belgrade and Niš

Abstract

The seasonal analysis of warm days in Belgrade and Niš is presented using climate indices Warm/Dry (WD) and Warm/Wet (WW) days, which are based on the daily mean temperatures and daily precipitation. Day is conceived as warm if the daily mean temperature is greater than the 75th percentile. Day is considered as dry (wet) if the daily precipitation are below the 25th percentile (higher than the 75th percentile). Analyses are made for the period 1950-2009 for Belgrade and Niš. It is obtained that the number of WD days, as well as WW days incresed in both cities, in Belgrade more than in Niš.

Keywords

• climate indices
• warm dry days
• warm wet days
• season
• trend
• Belgrade
• Niš