Coastal Flood Hazard Assessment for İzmir (Türkiye): Extreme Sea Levels, Return Levels, and Flood Depth Maps (RP 2–100 yr) – historical (1985–2014) vs future (2021–2050), İzmir Bay

Dataset Description This dataset contains the complete hazard workflow outputs for coastal flooding in İzmir (Türkiye), developed within the CLIMAAX project. The repository includes: Extreme sea level analysis based on tide gauge observations Return level estimation (2–100 year events) Sea level rise projections (IPCC AR6 SSP2-4.5 and SSP5-8.5) Historical and future ensemble water level simulations (CODEC dataset) DEM-based flood depth maps for multiple return periods Reclassified hazard maps (raster and vector) The files Includes: Tudes_WL_recordings.csvRaw tide gauge observations from Mentes station. fits.csvStatistical goodness-of-fit results for extreme value distributions. return_levels.csvEstimated water levels for 2, 5, 10, 25, 50, 75, and 100-year return periods. wl_simulation_comparison.csvHistorical (1985–2014) and future (2021–2050) ensemble water level simulations. Waterlevel_simulations_1985_2050/NetCDF files containing CODEC historical and future ensemble-median water levels per return period. Water_Depth_maps/Depth_Raster/Flood depth rasters (meters) for: 2, 5, 10, 25, 50, 75, 100-year return periods. Water_Depth_maps/Depth_Polygon/Vectorised flood depth class polygons. Water_Depth_maps/Depth_Polygon_District/District-level zonal hazard statistics. File Content :  Hazard_assessment_FLOOD_COASTAL_izmir.ipynbJupyter Notebook containing the coastal flood hazard assessment workflow and extreme sea level analysis for İzmir. izmir_dem.tifDigital Elevation Model (DEM) of the İzmir coastal zone (HGM) Plots.zipFigures and visual outputs generated from the hazard assessment workflow. izmir_district_boundaries.gpkgAdministrative district boundaries of İzmir. izmir_neighbourhood_boundaries.gpkgNeighbourhood (mahalle) boundaries of İzmir used for spatial aggregation. Water_Depth_maps.zipFlood depth maps (2–100 year return periods) and derived hazard layers. Mentes_station_recording.zipTide gauge observations and processed extreme water level data from Mentes Station. Waterlevel_simulations_1985_2050.zipHistorical and future ensemble water level simulations (1985–2050) used for hazard analysis.