Coastal flooding - Cities and FUAs — Built-up area exposure to coastal flooding by country
This dataset provides indicators of population and built-up exposure to coastal floods. Data sources and methodology Coastal flooding indicators are estimated using the Global coastal flood hazard maps (Muis, S. et al., 2016). This dataset provides the extent of coastal floods for different return periods (10 to...
Coastal flooding - Cities and FUAs — Built-up area exposure to: full country ranking
| # | Country | Latest | Year | 10-year change | Trend |
|---|
Regions and income groups
Aggregates are excluded from the country ranking above so that a region can never outrank a country.
- Almere 100 Percentage of built-up area
- Haarlemmermeer 100 Percentage of built-up area
- Purmerend 100 Percentage of built-up area
- Alphen aan den Rijn 100 Percentage of built-up area
- Gouda 100 Percentage of built-up area
- Zoetermeer 100 Percentage of built-up area
- Nissewaard 99.75 Percentage of built-up area
- Zaanstad 99.26 Percentage of built-up area
- Leeuwarden 99.11 Percentage of built-up area
- Lelystad 97.2 Percentage of built-up area
- Alkmaar 92.72 Percentage of built-up area
- Zwolle 91.97 Percentage of built-up area
- Hoorn 90.96 Percentage of built-up area
- Groningen 89.04 Percentage of built-up area
- Leiden 83.56 Percentage of built-up area
- Kingston upon Hull 76.85 Percentage of built-up area
- Bremerhaven 75.3 Percentage of built-up area
- Amsterdam 74.02 Percentage of built-up area
- Niigata 69.75 Percentage of built-up area
- 's-Gravenhage 69.46 Percentage of built-up area
- Breda 69.4 Percentage of built-up area
- Rotterdam 69.31 Percentage of built-up area
- Oostende 67.02 Percentage of built-up area
- Calais 64.47 Percentage of built-up area
- Ravenna 61.77 Percentage of built-up area
- Dunkerque 59.05 Percentage of built-up area
- Heemskerk 51.37 Percentage of built-up area
- Utrecht 51.31 Percentage of built-up area
- Haarlem 48.11 Percentage of built-up area
- Mechelen 41.98 Percentage of built-up area
- Bergen op Zoom 40.73 Percentage of built-up area
- Amersfoort 38.26 Percentage of built-up area
- Eastbourne 37.77 Percentage of built-up area
- Brugge 36.48 Percentage of built-up area
- Bremen 34.31 Percentage of built-up area
- Roosendaal 33.08 Percentage of built-up area
- Antwerpen 32.36 Percentage of built-up area
- Venezia 31.99 Percentage of built-up area
- Oldenburg (Oldenburg) 31.5 Percentage of built-up area
- Hamburg 28.08 Percentage of built-up area
About this data
This dataset provides indicators of population and built-up exposure to coastal floods. Data sources and methodology Coastal flooding indicators are estimated using the Global coastal flood hazard maps (Muis, S. et al., 2016). This dataset provides the extent of coastal floods for different return periods (10 to 100 years) with a 1-kilometre resolution. A return period corresponds to the estimated time interval between floods of similar intensity. Built-up area exposure to coastal floods is computed by intersecting this map with Copernius annual land cover data (Copernicus Climate Change Service, Climate Data Store, 2019) and population exposure is computed using the Global Human Settlement Population layer (European Commission, GHSL Data Package 2023). Harmonised international hazard models are used to ensure global comparability, consistent modelling assumptions across countries, and complete subnational coverage. These estimates may differ from official subnational flood risk statistics due to differences in methodological approaches - such as the use of global, modelled top down hazard maps versus national hydrological models or administrative flood zone delineations - as well as variations in input data sources, spatial resolution, and hydraulic modelling techniques. Defining FUAs and cities The OECD, in cooperation with the EU, has developed a harmonised definition of functional urban areas (FUAs) to capture the economic and functional reach of cities based on daily commuting patterns (OECD, 2012). FUAs consist of: A city – defined by urban centres in the degree of urbanisation, adapted to the closest local administrative units to define a city. A commuting zone – including all local areas where at least 15% of employed residents work in the city. The delineation process includes: Assigning municipalities surrounded by a single FUA to that FUA. Excluding non-contiguous municipalities. The correspondence table between SAUs and FUAs/cities is available in parquet and csv format. The definition identifies 1 272 FUAs and 1 269 cities in all OECD member countries except Costa Rica and three accession countries. Cite this dataset OECD Regions, cities and local areas database (Coastal flooding - Cities and FUAs), http://oe.cd/geostats Further information OECD Local Data Portal OECD Regions and Cities at a Glance For questions and/or comments, please email CitiesStat@oecd.org