Global simulations of fluvial floods based on the ISIMIP2 ensemble of global hydrological models|洪水模拟数据集|气候变化数据集

The research project Short- and Long-Term Impacts of Climate Extremes (SLICE, 2019) entailed the provision of historical data and future projections of key hazard risk indicators for all project-relevant climate hazards in close collaboration with ISIMIP (www.isimip.org). In particular, the flood hazard indicators are of special interest for scientists and stakeholders and were applied in several risk assessments. The final report "UNDERSTANDING THE SHORT AND LONG-TERM IMPACTS OF CLIMATE EXTREMES" (Zimmer et al. 2023) summarizes project results and provides a detailed description of the flood data in its Technical Appendix.<br>The dataset entails historical simulations of annual river flood maxima (river discharge, flooded areas, flood depth), covering the time period 1971-2010, based on the input of climate reanalysis datasets (ISIMIP2a, Schewe et al. 2019) and future projections of annual river flood maxima (flooded areas, flood depth), covering the time period 2006-2100 complemented by simulations driven by historical GCM runs covering the time period 1860-2006 and pre-industrial control runs (ISIMIP2b, Frieler et al. 2017).<br>To derive spatially explicit flood hazard indicators, climate forcing data was processed by the ensemble of GHMs participating in ISIMIP2 harmonized with regard to their underlying river routing scheme by means of the global hydrodynamic model CaMa-Flood (v3.6.2 https://hydro.iis.u-tokyo.ac.jp/~yamadai/cama-flood/, Yamazaki et al., 2011). Data is provided assuming different levels of river flood protection including protection levels from the global database of FLOod PROtection Standards (FLOPROS, Scussolini et al. 2016).