Flood modelling and impact of debris flow in the Madarsoo River, Iran

Madarsoo River with a catchment area of 2360 km2 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).