naa a22 4500 510806201 CHVBK 20180411083419.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11625-013-0215-7 doi (NATIONALLICENCE)springer-10.1007/s11625-013-0215-7 Exposure of atoll population to coastal erosion and flooding: a South Tarawa assessment, Kiribati [Elektronische Daten] [Virginie Duvat, Alexandre Magnan, Frédéric Pouget] Atoll countries are particularly vulnerable to coastal hazards in the context of global change, which justifies the interest in population exposure assessments. This paper contributes to addressing this need by assessing the current exposure of the population of two areas of the South Tarawa Urban District (Tarawa Atoll, Republic of Kiribati) to coastal erosion and flooding. The assessment is based on data relating to island morphology (digital terrain models and shoreline change), land use (building extension and coastal works) and environmental changes reconstructed for the 1969-2008 period. The results highlight rapid changes in land use and significant differences in current population exposure to coastal erosion and flooding between and within study sites. Between 1969 and 2007-2008, the built area located less than 20m from the reference shoreline has increased by a factor of 4.2 at Bairiki and by a factor of 32.2 at Eita-Bangantebure, enhancing population exposure given that land elevation is low (12.6 and 77.4%<2m at Bairiki and Eita-Bangantebure, respectively). Nevertheless, in Bairiki, 87.5% of the built area is currently not exposed to coastal erosion (>20m from the coastline) and flooding (>1.5m). Building exposure is higher at Eita-Bangantebure, where 71.3% of the built area is currently not exposed (using the same criteria), but 17.1% shows medium to very high levels of exposure, due to very low land elevation (22.3% of the land area<1.5m) and shoreline recession. The Eita-Bangantebure case study exemplifies the maladaptive trajectories of change that have been reported in other atoll countries. Springer Japan, 2013 Population exposure nationallicence Coastal erosion nationallicence Flooding nationallicence SIDS nationallicence Kiribati nationallicence Trajectories of change nationallicence Duvat Virginie UMR LIENSs 7266, University of la Rochelle-CNRS, Institut du Littoral et de l'Environnement, 2 rue Olympe de Gouges, 17000, La Rochelle, France aut Magnan Alexandre Institute for Sustainable Development and International Relations (IDDRI-Sciences Po), 27 rue Saint-Guillaume, 75006, Paris, France aut Pouget Frédéric UMR LIENSs 7266, University of la Rochelle-CNRS, Institut du Littoral et de l'Environnement, 2 rue Olympe de Gouges, 17000, La Rochelle, France aut Sustainability Science Springer Japan 8/3(2013-07-01), 423-440 1862-4065 8:3<423 2013 8 11625 https://doi.org/10.1007/s11625-013-0215-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11625-013-0215-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Duvat Virginie UMR LIENSs 7266, University of la Rochelle-CNRS, Institut du Littoral et de l'Environnement, 2 rue Olympe de Gouges, 17000, La Rochelle, France aut NATIONALLICENCE 700 1- Magnan Alexandre Institute for Sustainable Development and International Relations (IDDRI-Sciences Po), 27 rue Saint-Guillaume, 75006, Paris, France aut NATIONALLICENCE 700 1- Pouget Frédéric UMR LIENSs 7266, University of la Rochelle-CNRS, Institut du Littoral et de l'Environnement, 2 rue Olympe de Gouges, 17000, La Rochelle, France aut NATIONALLICENCE 773 0- Sustainability Science Springer Japan 8/3(2013-07-01), 423-440 1862-4065 8:3<423 2013 8 11625 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer