CatRaRE_W3_Eta_v2021.01: Catalogues of heavy precipitation events exceeding DWD's warning level 3 for severe weather based on RADKLIM-RW Version 2017.002

The catalogues of spatially and temporally independent heavy precipitation events are based on RADKLIM-RW Version 2017.002. The hourly precipitation sums (RW) result from radar-based precipitation estimates on a 1 km x 1 km grid over Germany adjusted to station data. Based on this dataset precipitation sums with 11 different durations (1, 2, 3, 4, 6, 9, 12, 18, 24, 48 and 72 hours) were calculated for each hour. For each duration and hour precipitation objects of adjacent grid boxes were identified, that exceeded DWD's warning level 3 for severe weather (W3). From all object that describe the same precipitation event (e.g. an event might exceed the threshold for several durations or in consecutive hours), the one with the highest extremity (Eta, a parameter dependend on return period and spatial extent) was chosen and listed in the catalogue. In a csv-file all events are listed with date and time, duration, return period, geographical location of the precipitation maximum and further parameter. In addition to the .csv tables, each catalogue is available in GIS-Format, permitting the spatial representation of events. All precipitation maxima are represented in a Point Feature Layer and each event’s zone is a part of the Polygon Feature Layer. Each layer contains a complete attribute table, which fully corresponds to the .csv file. Both datasets are availabe as file geodatabase (.gdb) with RADKLIM native polar stereographic projection.