Landslide-amplified flash floods—The June 2008 Panay Island flooding, Philippines
作者： Sandra G. Catane , Catherine C. Abon , Ricarido M. Saturay , Edna Patricia P. Mendoza , Krestabelle M. Futalan
DOI: 10.1016/J.GEOMORPH.2012.04.008
关键词: Channel (geography) 、 Hydrological modelling 、 Geology 、 Typhoon 、 Landslide 、 Flash flood 、 Landslide dam 、 Flooding (psychology) 、 Flood myth 、 Hydrology
摘要: Abstract The role of landslides in generating or enhancing a flash flood event Aklan, Panay Island, Philippines, resulting from Typhoon Fengshen, was investigated. occurred between 1100 h and 1400 h (GMT + 8) 21 June 2008 inundated Sitios Agbatan Abaya the municipality Libacao. Peak discharges at Kipot, channel constriction Aklan River about 10 km upstream, were independently derived using hydrologic model (302.6 m 3 /s) Manning's equation (7000 m /s). modeled peak reached Kipot 0300 h on communities 0600 h 1000 h 21, earliest. actual arrived least 1 h earlier than arrival. While may have been caused by preceding rainfall alone (234.4 mm 20 to 21), discrepancies delayed arrival time suggest possibility damming eventual breaching dam. Evidence found Kipot. A landslide this site mapped, characterized, inferred completely blocked damming. Implications risk assessment are discussed.
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