Flood Modelling And Impact Of Debris Flow
In The Madarsoo River, Iran
Author(s)
S. Tjerry, O. Z. Jessen, K. Morishita & H. G. Enggrob
Abstract
Madarsoo River with a catchment area of 2360 km 2 originates in the Alborz
Mountains, runs through the national Golestan Forest and into Golestan
reservoir. Three major flashfloods have taken place during the past five years,
and oddly enough all three flashfloods took place in the dry season
(mid-August), with the largest recent flashflood (10 August 2001) killing about
250 people, mostly in the Golestan Forest. Debris flow occurs along part of the
Madarsoo where the tributaries have high slopes and intense rainfall. The
objectives of the present study are to produce flood maps for the area and to
assess the hydraulic impact of debris flow. The work has been carried out as part
of \“The Study on Flood and Debris Flow in the Caspian Coastal Area Focusing
on the Flood-Hit Region in Golestan Province” financed by Japan International
Cooperation Agency (JICA).
Keywords: flashfloods, hydrological modelling, hydraulic modelling,
morphological modelling, GIS, debris flow, flood mapping, disaster
management.
1 Introduction
Three models were constructed for the Madarsoo River. A hydrological model
consisting of coupled MIKE SHE and MIKE 11 models was used at basin scale
for determining the distributed inflows to the river system. A MIKE 11 hydraulic
model covering the reach from Dasht village to Golestan Dam was used for
hydraulic modelling and flood mapping. Finally a local morphological model
with inclusion of debris flow was used for quantifying the hydraulic impact of
Keywords
flashfloods, hydrological modelling, hydraulic modelling,
morphological modelling, GIS, debris flow, flood mapping, disaster
management.
Related Book
Other papers in this volume
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