Project

The course project is a flood analysis study of the Incheon Gyo watershed,urbanized area in Incheon, Korea. Incheon Gyo watershed has an area of34km² and length of 8 km. Elevation of the Incheon Gyo watershed whichis linked with Yellow Sea through two retention pond is from 6m to5.4m. As above we mentioned, the slope of Incheon Gyo watershed is verymild (S=0.01%). The land use of this watershed is almost urbanized areaincluding a reclamation region. So, this watershed has a 81.4% ofimpermeability layer and drainage network system is complicated.Besides, because the tidal difference of Yellow sea which is linkedwith Incheon Gyo watershed is 9m, sea water has an effect on drainageof the watershed when Incheon's rainfall concentrates on August.

For these reasons Incheon Gyo watershed has had a flood for five years [1997 -2001].

A full presentation of the catchment (in pdf format) is available in the Data section.

Youcan find a related picture  in data section. The course project dealswith the flood analysis during August 1997 in Incheon Gyo watershedusing modern Hydro informatics methods and tools.

Thegoals of this study are the evaluation of existing sewer networksystem, analysis of flood and discussion to solve the problems.

The project has several main tasks (work packages) :

• Runoff analysis based on rainfall data and DEM
• Simulation of Incheon Gyo watershed for the flood Aug 1997
• Validation of simulation results by measurement data
• Discuss recommendations for management of Incheon Gyo watershed Discuss alternative solutions for flood prevention in the lower valley of theriver Project performance in team work based on Web-based Collaborative Engineering
• Reporting of all project work as Web documents

The data files for the case study are stored in the Data section.