Aridity in Kosovo and Metohija, Serbia

Abstract

We are investigating aridity in Kosovo and Metohija (KaM), Serbia and calculated two parameters: De Martonne aridity index and the Pinna combinative index. These indices were chosen as the most adequate for the analysis of climate of KaM. Calculation was based on data obtained from 10 meteorological stations for the period 1965-1999. The spatial distribution of the annual and seasonal De Martonne and Pinna combinative indices, as well as the mean monthly values of the De Martonne index and aridity trends of these indices, are presented. There were two, four, and six types of climate on an annual, seasonal, and monthly basis in KaM, respectively, according to the De Martonne climate classification consisting of a total seven types. In addition, semi-humid and humid climate types where present in the region, were included in the study on an annual basis. The winter season was dominated by wetter types of climate, while the spring season was characterized as semi-dry and dry. Three climate types, which can be indentified using the Pinna combinative index, where registered in the KaM region. The most dominant climate type was the semi-dry climate, with some Mediterranean vegetation in the south-west part of KaM. A small part of territory identified as semi-arid type is also in the central part of KaM. Therefore, it can be considered that there were no recent aridity changes during the observed period of 35 years.