Envelope curves for extreme flood events in northwestern and western Greece

Mimikou, M

dc.contributor.author	Mimikou, M	en
dc.date.accessioned	2014-03-01T01:06:16Z
dc.date.available	2014-03-01T01:06:16Z
dc.date.issued	1984	en
dc.identifier.issn	00221694	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9275
dc.subject.other	HYDROLOGY	en
dc.subject.other	RAIN AND RAINFALL	en
dc.subject.other	STATISTICAL METHODS	en
dc.subject.other	WATERSHEDS - Drainage	en
dc.subject.other	FREQUENCY ANALYSIS	en
dc.subject.other	FLOODS	en
dc.title	Envelope curves for extreme flood events in northwestern and western Greece	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0022-1694(84)90232-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0022-1694(84)90232-4	en
heal.publicationDate	1984	en
heal.abstract	Maximum flood experience in the northwestern and western regions of Greece can be depicted in graphs on which the maximum observed peak discharges are plotted against drainage areas. The peak discharges are found to be power functions of the drainage areas, and the curves enveloping the plotted points differ from region to region according to the climatic regime. The exponents of the Greek envelope curves are in the range of values of the exponents of yearly floodflow-drainage area envelope curves developed in conterminous U.S. basins, but the former curves' constants are much lower than the latter. When the peak discharges are plotted against a morphoclimatic index, which is the product of the expected storm duration by the maximum observed average storm intensity for this duration by the area of the drainage basin, a single linear envelope curve is drawn for both regions that explains 95% of the regional variation in the dependent variable. This curve is free from several drawbacks of floodflow-drainage area envelope curves, i.e. it does not need the determination of region boundaries, etc. The developed envelope curves can predict peak discharges at certain probability levels for ungauged basins of the area and can be used in specific engineering applications. © 1984.	en
heal.journalName	Journal of Hydrology	en
dc.identifier.doi	10.1016/0022-1694(84)90232-4	en
dc.identifier.volume	67	en
dc.identifier.issue	1-4	en
dc.identifier.spage	55	en
dc.identifier.epage	66	en