Identification of Drought in Western Slovakia by Palmer Drought Severity Index (PDSI)

Abstract The paper deals with identification of drought in western Slovakia, which is based on soil-climatological data. For this purpose, three sites were chosen: Bratislava, Piešťany and Hurbanovo, situated on the Danubian Lowland. The Palmer Drought Severity Index (PDSI) was calculated on monthly basis for time series 1981–2010, 2021–2050 and 2071–2100. There were determined the driest periods by percentage of dry months for each site. The driest period in Bratislava and Hurbanovo was in the first evaluated time series. In Piešťany we can expect, that the second time series will be the driest. Linear trend of drying area will be revealed in period 2071–2100 for all three sites. The aim of the paper is to analyze and compare the occurrence of drought in temporal and spatial dimensions on the west part of Slovakia.