HYDROASIA 2008 FLOOD ANALYSIS STUDY INCHEON GYO CATCHMENT

1. HYDROASIA 2008 FLOOD ANALYSIS STUDY INCHEON GYO CATCHMENT TEAM GREEN NGUYEN HOANG HUY SUN YABIN GWON YONGHYEON SUZUKI ATSUNORI LI WENTAO LEE CHANJONG ADVISERS: Prof. LIONG SHIE YUI Prof TANAKA KENJI

2. CONTENTS • INTRODUCTION GREEN TEAM • INTRODUCTION INCHEON GYO WATERSHED • INTRODUCTION MOUSE & SOBEK MODEL • PRELIMINARY RESULTS • CONCLUSION • FUTURE WORK PLAN

3. Leader : NGUYEN HOANG HUY Birthday: 10 June, 1978 Nationality : Vietnam University : Tropical Marine Science, National University of Singapore Major : Hydroinformatic, Flow and Rainfall Forecasting Habit: Reading, soccer

4. Member : SUN YABIN Birthday: 17 July, 1981 Nationality : China University : National University of Singapore Major : Hydroinformatics Habit: Soccer

5. Member : GWON YONGHYEON Birthday: 21 February, 1983 Nationality : Korea University : University of Incheon, Korea Major : Civil & Environment Hydrauics Habit: Soccer

6. Member : SUZUKI ATSUNORI Birthday: 19 October, 1984 Nationality : Japan University : Kyoto University, Japan Major : Hydrology and ecology Habit: Motorcycle

7. Member : LI WENTAO Birthday: 25 August, 1984 Nationality : China University : Bejing University of Technology, China Major : Water Supply and drainage Habit: Table tennis

8. Member : LEE CHANJONG Birthday: 26 January, 1981 Nationality : Korea University : Dong A University, Korea Major : CIVIL-ENGINEERING,GROUNDWATER Habit: Basketball

9. Adviser : Prof. LIONG SHIE YUI Professor of the National University of Singapore Associate Director of Tropical Marine Science Institute, National University of Singapore

10. Adviser : Prof. Tanaka Kenji Associate Professor of Water Resources Research Center , D.P.R.I., Kyoto University

11. OBJECTIVES • The collaboration of the five universities, based on the use of the internet as a common working platform, aims to establish and share high quality teaching courses, and furthermore to strengthen links between students from the partner institutions • Flood analysis of Incheon Gyo catchment based on metrological data, tidal data, DEM …

12. Incheon-gyo Catchment • Area : 3,091.7 ha • Elevation : 5.4~24.0 m (EL+) • 33.1% of area is less than 7m (EL+) • Avg. of Slope : 0.01 % • Avg. of Rainfall : 1,702.3 mm/year

13. MOUSE SETUP • Import from the excel file “Imported data to Mouse.xls” to Mouse • Setting up Urban Drainage model with MOUSE • Validation

14. Input Rainfall Data • Maximum rainfall • 28/7/2005 12AM ~ • 28/7/2005 4AM • (4 hrs)

15. Flood Result

16. IMPORT NETWORKS TO SOBEK • Import from the excel file “Imported data to Mouse.xls” to Mouse with modified node IDs. • From Mouse, export drainage networks system (nodes, pipes, cross sections, catchment) to SVK19 text file (the standard Scandinavian exchange format for sewer systems) • Modify the model coefficients, input rainfall and tidal data as downstream boundary condition

17. INCHEON SEWER NETWORKS SYSTEM

18. PRELIMINARY RESULTS

19. WATER LEVEL AT NODES (MANHOLES)

20. WATER LEVEL AT NODES (MANHOLES)

21. DISCHARGE AT BRACHES (PIPES)

22. DISCHARGE AT BRACHES (PIPES)

23. WATER ON STREET AT NODES (MANHOLES) NODES NOT AT FLOOD AREA

24. WATER ON STREET AT NODES (MANHOLES) NODES NOT AT FLOOD AREA

25. WATER ON STREET AT NODES (MANHOLES) NODES AT FLOOD AREA

26. WATER ON STREET AT NODES (MANHOLES) NODES AT FLOOD AREA

27. SIDE VIEW OF SIMULATION RESULTS

28. CONCLUTION • The models has been built through web-collaboration of Team-Green • Models has been set up and run successfully with reasonable results

29. FUTURE PLAN • Discuss rainfall-runoff simulation results from Mouse, Sobek • Analyze the models with different model coefficients and boundary condition • Validate for different periods of high rainfall intensity using Mouse and Sobek • Compare the results from the two models • Suggest a solution to help prevent flood problems

30. THANK YOU