Identification of Extreme Weather Events Using Meteorological and Hydrological Indicators in the Laborec River Catchment, Slovakia

This study used the standardized precipitation index (SPI) and runoff (SRI) to analyze dry humid conditions in hill-country catchment area of Laborec River (Slovakia) over a period 50 years (1970–2019). Analysis SPI SRI various time scales showed occurrence wet periods (index > 1.0) that were associated with exceeding long-term norm, below −1.0), which result small amounts precipitation. correlation between on different revealed weaker response short (1 3 months) stronger longer accumulation (6, 9, 12 months). The highest annual coefficient (r = 0.72) was recorded SRI-6 at Humenne hydrometric station SPI-9 Medzilaborce meteorological upper part area. strongest 0.69) obtained Izkovce Kamenica stations lower As shown by cross-relationships examined flows precipitation, hydrological droughts appeared as three-month delay. conducted analysis case river area, there strong drought drought.