On the spring sunshine regime in Croatia

(in Croatian)

Abstract

The irregular increase of cloudiness in Croatia in spring was found and briefly explained by J. Goldberg. This paper analyses the distribution functions of daily relative sunshine duration at 14 meteorological stations and the mean mounthly cloudiness at 131 stations in a recent climate. It is shown that the part of Croatia affected by the sunshine regime decline is not the same at the beginning and at the end of spring. The increase of cloudiness in March and April is mostly produced by the Mediterranean lows on the Adriatic or passing over continental Croatia. The diminished or non-existing decrease of cloudiness in June is due to the atmospheric disturbances from Atlantic, passing over central Europe. In both cases the windward sides of mountains are especially affected.