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Estimation of flash flood hazard in the Pidima-Arfara area (Messinia, SW Greece), based on the study of instantaneous unitary hydrographs, longitudinal profilesand stream power

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E. Sambaziotis, I. Fountoulis
E. Sambaziotis, I. Fountoulis


In this paper it is an effort to combine different methodologies in order to locate the sensitive sites in flash flood phenomena in a relatively small catchment located north of Kalamata (Messinia SW Péloponnèse, Greece). Based on digitised topographic map (scale 1/5.000) the longitudinal, gradient and stream power profiles of the watercourses were constructed and the results (possibly sensitive to flash floods sites) were compared to ones that came from applying hydrological simulation, hydrographs as well as Instantaneous Unitary Hydrographs. The comparison showed that the results were in good agreement.


slope gradient; flash flood; longitudinal profile; Instantaneous unit Hydrograph

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Clark, CO., 1945. Storage and the unit hydrograph transactions, Bull. American Soc. Civil Enginners, 110,1419-1488.

Grant, G.A., Swanson, F.J., and Wolman, M.G., 1990. Pattern and origin of stepped-bed morphology in high gradient streams, Western Cascades, Oregon, Bull. Geological Society of America 102, 340-352.

Hiroo Ohmori, 1991. Change in the mathematical function type describing the longitundinal profile of a river through an evolutionary process, Journal of Geology, 99, 97-110.

Knighton, A.D., 1999. Downstream variation in stream power. Geomorphology, 29, 293-306.

Koichiro Inoue, 1991. Downstream change in grain size of river bed sediments and its geomorphological implications in the Kanto Plain, central Japan, Journal of Geology, 99, 97-110.

Lee, K.T., 1998. Generating design hydrographs by DEM assisted geomorphic runoff simulation: a case study, Journal of American Water Resources Association 34/2, 375-384.

Leece, S.A., 1997. Nonlinear downstream changes in stream power on Wisconsin's Blue River, Annals of the American Association of Geographers, 87, 471-486.

Magilligan, F.J., 1992. Thresholds and the spatial variability of flood power during extreme floods, Geomorphology, 5, 373-390.

Mariolakos, I., Fountoulis, I., and Ladas, I., 2001. Paleogeographic evolution of SW Péloponnèse during Quaternary, Proc. 9th Congr. Geol. Soc. Greece, Bull. Geo I. Soc. Greece, XXXI V/l, 37-45. (in Greek)

Mimikou, M.A., and Mpaltas, E.A., 2001.Technical hydrology, editions NTUA, Athens, 263.

Montgomery, D.R., and Buffington, J.M., 1997. Channel-reach morphology in mountain drainage basins, Bui. Geological Society of America 109, 596-611.

Nanson, G.C., and Hean, D., 1985 . The west Dapto flood of February 1984 : rainfall characteristics and channel changes, Australian Geographer 16, 249-258.

Reinfelds Ivars, Cohen Tim, Batten Paul, Brierley Gary, 2004. Assessment of downstream trends in channel gradient, total and specific stream power: a GIS approach, Geomorphology, 60, 403-416.

Sambaziotis, E., 2005. Study for the confrontation of floods in the Pidima -Arfara area (Messinia, SW Péloponnèse, Greece) and for the possibility of the occurring karstic aquifer recharge. Msc Thesis, University of Athens, Faculty of Geology and Geonvironment. (in Greek)

Sherman, L.K., 1932. Stream flow from rainfall by unit-graph method, Engineering news-record, 108, vol. 14,501-506.

Sshumm, S.A., 1985. Pattern of alluvial rivers, Annual Review of Earth and Planetary Sciences, 13,5-7.

Voudouris, Κ., 1999. Analysis of extreme rainfall events of the Alexandroupolis meteorological station, Thracean Gold Mining S.A., Perama Project, Athens.

Wilson, P.J., 2000. Terrain-based descriptions of Earth surface and atmospcheric processes.

Wilson, P.J., and Gallant, C.J., 2000. Digital Terrain Analysis.


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