Investigation of the hydrologic response of the Xerias torrent basin to the rainstorm of January 1997 using the SCS method

Baloutsos, G; Koutsoyiannis, D; Economou, A; Kalliris, P

dc.contributor.author	Baloutsos, G	en
dc.contributor.author	Koutsoyiannis, D	en
dc.contributor.author	Economou, A	en
dc.contributor.author	Kalliris, P	en
dc.date.accessioned	2014-03-01T02:14:58Z
dc.date.available	2014-03-01T02:14:58Z
dc.date.issued	2011	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30207
dc.title	Investigation of the hydrologic response of the Xerias torrent basin to the rainstorm of January 1997 using the SCS method	en
heal.type	journalArticle	en
heal.publicationDate	2011	en
heal.abstract	On January 11-13, 1997, an unusual rainstorm hit the Xerias torrent watershed and the wider area of Corinth, Greece. The storm caused a devastating flood in the town of Corinth with severe damage and human losses. The damage was attributed to heavy rainfall and runoff and also to human interference in the channel of the torrent and in the floodplain. Quantification of the hydrologic response of the watershed and determination of suitable measures for mitigating flood impacts from similar events in the future was a difficult task due to lack of hydrometeorological data. This problem is faced here by investigating the hydrologic response of the watershed using the SCS method. The analysis has shown that the rainfall in the watershed ranged from 123-358 mm (weighted average 201 mm); its return period was of the order of 1000 years for the central part of the watershed and for 24-hour duration, but much lower for shorter durations. The peak discharge in the outlet of the watershed exceeded 600 m3/s (return period of the order of 100 years) and the flood volume was more than 55% of rainfall. Considering the physical and hydrological characteristics of the watershed and the conclusions drawn, measures are proposed and discussed for mitigating the flood impacts from similar events in the future.	en