eprintid: 1392418 rev_number: 30 eprint_status: archive userid: 608 dir: disk0/01/39/24/18 datestamp: 2013-05-06 19:29:16 lastmod: 2021-09-19 22:18:04 status_changed: 2013-05-06 19:29:16 type: article metadata_visibility: show item_issues_count: 0 creators_name: Gale, EL creators_name: Saunders, MA title: The 2011 Thailand flood: climate causes and return periods ispublished: pub divisions: UCL divisions: B04 divisions: C06 divisions: F63 note: © 2013 The Authors. Weather published by John Wiley & Sons Ltd on behalf of Royal Meteorological Society This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. abstract: Thailand is one of the wealthiest and most developed countries in southeast Asia. However, its tropical location and the influence of seasonal monsoon rains and local topography make it prone to floods. The floods in 2011 were especially severe, causing estimated losses of US $30 billion (economic; Swiss Re, 2012) and US $12 billion (insured; Swiss Re, 2012). The insured loss ranks easily as the highest-ever worldwide from a freshwater flood disaster (Swiss Re, 2012). The primary reason for the floods was record rainfall: over Thailand as a whole, annual rainfall in 2011 was the highest in the country’s 61-year precipitation record (Thai Meteoro logical Department, 2011). In this article we first review the nature, impacts and historical ranking of the 2011 Thailand floods. We then examine the 2011 rainfall totals and anomalies across Thailand and use these with other data to discuss the climate causes for the exceptional rainfall. We then estimate the rainfall return period for this flooding event and compare this with satellite-derived return periods for the 2011 river flow. Finally, we bring together the different estimated return periods to provide a firmer assessment of how likely it is that a flood of the magnitude of 2011 will happen again. date: 2013-09 official_url: http://dx.doi.org/10.1002/wea.2133 vfaculties: VMPS oa_status: green full_text_type: pub primo: open primo_central: open_green verified: verified_manual elements_source: WoS-Lite elements_id: 868560 doi: 10.1002/wea.2133 lyricists_name: Saunders, Mark lyricists_id: MASAU70 full_text_status: public publication: WEATHER volume: 68 number: 9 pagerange: 233 - 237 issn: 0043-1656 citation: Gale, EL; Saunders, MA; (2013) The 2011 Thailand flood: climate causes and return periods. WEATHER , 68 (9) 233 - 237. 10.1002/wea.2133 <https://doi.org/10.1002/wea.2133>. Green open access document_url: https://discovery.ucl.ac.uk/id/eprint/1392418/1/wea2133.pdf