Analysis of short-term rainfall characteristics related to the pluvial floods in the city of Zagreb

In this Master thesis, reports from civil protection and from public fire brigades of the City of Zagreb were analyzed. Technical interventions of pumping water from facilities and open urban spaces in the period 2009-2018 during extreme hydrometeorological conditions were taken into account and used as impact parameter of pluvial floods. Spatial analysis was performed and a link was made between urban land use in relation to the number of interventions as indicators of flood occurrence. For a given period, total amounts of rainfall measured at the meteorological station Maksimir were analyzed and maximums of daily precipitation for 1, 2, 3, 6, 12 and 24 hours were determined and used as flood hazard parameter for the period 2007-2017. Updated and joined database was made for rainfall and intervention data for the period 2007-2017. The aim of the thesis was to determine what intensities and duration of precipitation could be related the occurrence of flooding. Based on identified precipitation events, thresholds of the intensity and duration of critical precipitation have been determined, related to the flood indicators