{"version":"2.1.1","release_date":"2026-09-05","record_count":2521,"countries":[{"code":"AL","name":"Albania","records":62,"first_year":1946,"last_year":2019,"file":"AL.geojson"},{"code":"AD","name":"Andorra","records":1,"first_year":1982,"last_year":1982,"file":"AD.geojson"},{"code":"AT","name":"Austria","records":39,"first_year":1882,"last_year":2018,"file":"AT.geojson"},{"code":"BE","name":"Belgium","records":25,"first_year":1906,"last_year":2016,"file":"BE.geojson"},{"code":"BA","name":"Bosnia and Herzegovina","records":21,"first_year":1965,"last_year":2020,"file":"BA.geojson"},{"code":"BG","name":"Bulgaria","records":37,"first_year":1897,"last_year":2018,"file":"BG.geojson"},{"code":"HR","name":"Croatia","records":33,"first_year":1959,"last_year":2018,"file":"HR.geojson"},{"code":"CY","name":"Cyprus","records":11,"first_year":1894,"last_year":2009,"file":"CY.geojson"},{"code":"CZ","name":"Czechia","records":47,"first_year":1872,"last_year":2020,"file":"CZ.geojson"},{"code":"DK","name":"Denmark","records":15,"first_year":1872,"last_year":2013,"file":"DK.geojson"},{"code":"EE","name":"Estonia","records":2,"first_year":2003,"last_year":2005,"file":"EE.geojson"},{"code":"FI","name":"Finland","records":17,"first_year":1898,"last_year":2012,"file":"FI.geojson"},{"code":"FR","name":"France","records":230,"first_year":1871,"last_year":2020,"file":"FR.geojson"},{"code":"DE","name":"Germany","records":125,"first_year":1872,"last_year":2018,"file":"DE.geojson"},{"code":"EL","name":"Greece","records":109,"first_year":1887,"last_year":2020,"file":"EL.geojson"},{"code":"HU","name":"Hungary","records":31,"first_year":1876,"last_year":2014,"file":"HU.geojson"},{"code":"IS","name":"Iceland","records":8,"first_year":1930,"last_year":2006,"file":"IS.geojson"},{"code":"IE","name":"Ireland","records":28,"first_year":1931,"last_year":2020,"file":"IE.geojson"},{"code":"IM","name":"Isle of Man","records":3,"first_year":2000,"last_year":2019,"file":"IM.geojson"},{"code":"IT","name":"Italy","records":743,"first_year":1872,"last_year":2020,"file":"IT.geojson"},{"code":"XK","name":"Kosovo","records":18,"first_year":1938,"last_year":2016,"file":"XK.geojson"},{"code":"LV","name":"Latvia","records":5,"first_year":1931,"last_year":2017,"file":"LV.geojson"},{"code":"LI","name":"Liechtenstein","records":2,"first_year":1927,"last_year":1999,"file":"LI.geojson"},{"code":"LT","name":"Lithuania","records":8,"first_year":1926,"last_year":2017,"file":"LT.geojson"},{"code":"LU","name":"Luxembourg","records":6,"first_year":1993,"last_year":2018,"file":"LU.geojson"},{"code":"MT","name":"Malta","records":9,"first_year":1913,"last_year":2003,"file":"MT.geojson"},{"code":"ME","name":"Montenegro","records":9,"first_year":1979,"last_year":2016,"file":"ME.geojson"},{"code":"NL","name":"Netherlands","records":11,"first_year":1874,"last_year":1998,"file":"NL.geojson"},{"code":"MK","name":"North Macedonia","records":16,"first_year":1929,"last_year":2016,"file":"MK.geojson"},{"code":"NO","name":"Norway","records":42,"first_year":1879,"last_year":2020,"file":"NO.geojson"},{"code":"PL","name":"Poland","records":50,"first_year":1884,"last_year":2020,"file":"PL.geojson"},{"code":"PT","name":"Portugal","records":56,"first_year":1904,"last_year":2016,"file":"PT.geojson"},{"code":"RO","name":"Romania","records":50,"first_year":1970,"last_year":2020,"file":"RO.geojson"},{"code":"RS","name":"Serbia","records":66,"first_year":1896,"last_year":2020,"file":"RS.geojson"},{"code":"SK","name":"Slovakia","records":22,"first_year":1876,"last_year":2020,"file":"SK.geojson"},{"code":"SI","name":"Slovenia","records":26,"first_year":1924,"last_year":2014,"file":"SI.geojson"},{"code":"ES","name":"Spain","records":304,"first_year":1871,"last_year":2020,"file":"ES.geojson"},{"code":"SE","name":"Sweden","records":17,"first_year":1872,"last_year":2015,"file":"SE.geojson"},{"code":"CH","name":"Switzerland","records":65,"first_year":1871,"last_year":2019,"file":"CH.geojson"},{"code":"UK","name":"United Kingdom","records":152,"first_year":1875,"last_year":2020,"file":"UK.geojson"}],"source":{"source_id":"HANZE-2.1.1","title":"HANZE v2.1.1 event dataset","url":"https://doi.org/10.5281/zenodo.8410025","version":"2.1.1","publication_doi":"10.5194/essd-16-5145-2024","publication_citation":"Paprotny, D., Terefenko, P., and Śledziowski, J. (2024). HANZE v2.1: an improved database of flood impacts in Europe from 1870 to 2020. Earth System Science Data 16, 5145–5170.","license":"CC BY 4.0","source_role":"compiled event records and affected administrative regions","access_basis":"CSV, bibliography, region dictionary, original GIS archive, paper Appendix A and Table 2","restriction":"Source-defined country/regional records can describe one wider flood episode. Administrative polygons are not inundation boundaries."},"attribution":"Paprotny (dataset v2.1.1); Paprotny, Terefenko and Śledziowski (2024). CC BY 4.0. Geometry transformed from EPSG:3035 to EPSG:4326.","geometry_role":"affected administrative regions, not inundation extent","coordinate_reference_system":"EPSG:4326 (longitude, latitude)","transformation":"Original HANZE geometry transformed from EPSG:3035 using GDAL/Fiona. Geometry not simplified. Attributes taken from full source CSV.","selection":"All HANZE source-country records, including Greece. Confirmed shared-event evidence is retained with NKUA; unresolved source records are not automatically merged.","counting_unit":"HANZE source records, not independently deduplicated physical flood episodes","source_reference_status":"HANZE reference labels and bibliography reproduced. Upstream reports have not all been independently retrieved or assessed.","date_status":"Reported source intervals; explicitly approximate dates flagged in individual records. Unflagged dates are not independently established.","missing_values":"Null means unreported or unavailable, not zero.","impact_scope":"Reported source impacts; fatalities include missing people presumed dead. Reported inundated area is not calculated from these administrative polygons. Nominal losses retain source currency; adjusted losses retain source 2020 EUR values."}