1D, 2D integrated Flood Risk Mapping (Incheon-gyo Catchment) Team RED Seongjoon BYEON Myeongsoo HAM Michele ROMANO K. Shobha YADAV Masahiko TERAZONO ADVISER : Gyewoon CHOI

CONTENTS  HYDROASIA TEAM-RED  INTRODUCTION  OBJECTIVES OF STUDY  PRE-PROCESSING WITH GIS  URBAN DRAINAGE MODEL SETUP  MIKEFLOOD MODEL SETUP  ANALYZING RESULTS  CONCLUSION  FURTHER PLAN

HYDROASIA TEAM-RED

 Leader : Seongjoon Byeon  Nationality : Korea  The date of Birth : December 13, 1979 (Age : 27)  University : Incheon Regional Environmental Technology Development Center, National University of Incheon, University Nice Sophia- Antipolis  Major : Civil & Environment Hydraulics

HYDROASIA TEAM-RED  Member : Myeongsoo Ham  Nationality : Korea  The date of Birth : August 15, 1981 (Age : 25)  University : Incheon Regional Environmental Technology Development Center, National University of Incheon  Major : Civil & Environment Hydraulics

HYDROASIA TEAM-RED  Member : Shobha Kumari Yadav  Nationality : Nepal  The date of Birth : August 20, 1980 (Age: 26)  University : Tropical Marine Science Institute, National University of Singapore  Major : Environmental Management

HYDROASIA TEAM-RED  Member : Michele Romano  Nationality : Italy  The date of Birth : February 11, 1978 (Age : 29)  University : Tropical Marine Science Institute, National University of Singapore, Technical University of Bari  Major : Civil & Environmental

HYDROASIA TEAM-RED  Member : Masahiko Terazono  Nationality : Japan  The date of Birth : September 28, 1983 (Age : 23)  University : Kyoto University  Major : Civil & Environmental

HYDROASIA TEAM-RED  Adviser : Gye woon Choi  Nationality : Korea  Professor of National University of Incheon  Executive director of Incheon Regional Environmental Technology Development Center

OBJECTIVES OF STUDY  Main purpose –Runoff analysis based on rainfall data and DEM –Mapping Flood Risk –Comparison with Real Flood –Comparison with results simulated with different parameters and model –To find out optimized Storm Performance

OBJECTIVES OF STUDY  Making good experiences –Collaborating on a study with foreign students using the internet as a common working and communication platform –Sharing knowledge and skills –Experiencing the ‘Technological Culture’ for a sustainable water management

 Production of Weekly Reports  Production of Documents and easy tutorials UPLOADING THE PLATFORM

Flow chart Overall frame work MIKE FLOOD Set up Coupling Preprocessing for MOUSE Run Model Check the result and evaluation Set up Validation MIKE21 Model  Overall frame work MOUSE Model Set up Validation Preparation GIS Rainfall Analysis

INTRODUCTION  Incheon city –Area : ㎢ –Population : 2,686,022 persons –Density of population : 2,680 persons/ ㎢ –Location : A gateway to Northeast Asia with both international port and international airport in its hand Incheon is located in the mid-west Korea peninsula abutting the Yellow Sea. A city located 28km from the nation’s capital, Seoul, lies at 126° 37´ of east longitude and 37° 28´ of north latitude. San Francisco, Washington, Madrid, and Teheran are found on the same latitude. `

INTRODUCTION  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 Landuse : Residence, Market, Industrial and Green (Hill, Agriculture) LocationResidenceMarketIndustrialGreenTotal Incheon gyo Covered Openchannel Left ,183.6 Right Seoknam Canal Total ,091.7

PRE-PROCESSING WITH GIS  A GIS is a computer system capable of capturing, storing, analyzing, and displaying geographically referenced information  GIS can display the Earth in realistic, 3D perspective views & animations that convey information more effectively  The main purpose of GIS analysis is to study the topographical characteristics of the study area which is further used for flood modelling

PRE-PROCESSING WITH GIS  Clipping map as catchment shape  Making Terrain map with interpolation

PRE-PROCESSING WITH GIS  Making grid-Raster data set  Exporting data set as Ascii file

PRE-PROCESSING WITH GIS (ArcScene)  3D representation of building within catchment area

PRE-PROCESSING WITH GIS (ArcScene)  3D representation of road network within catchment area

INTRODUCTION-MIKE FLOOD  MIKE FLOOD –Hydrodynamic Integrated model with 1D and 2D –The result of either 1D or 2D model can be transferred as input of another model  1D Model –MOUSE : For Analyzing Urban Sewage –MIKE 11 : For Analyzing Open Channel Flow  2D Model –MIKE 21 : For Analyzing surface complicated overflow

INTRODUCTION-MIKE FLOOD Rainfall Runoff Surface Runoff Overflow Re-inflow after flood Flow-capacity excess Sewage/Rainfall water

URBAN DRAINAGE MODEL SETUP  Importing Network system data into MOUSE  Setting up Urban Drainage model with MOUSE  Validation

URBAN DRAINAGE MODEL SETUP  Import Ascii data-set as bathymetry  Setting up Urban Bathymetry with MIKE21  Validation OptionValue Time Step 1sec Max Cr=0.4 Grid Size10m

MIKEFLOOD MODEL SETUP  Setting up MIKE Flood model  Coupling : Link MOUSE Manholes to MIKE21  Preprocessing for MOUSE Model  Running Model  Check the results

Catchment boundary Gajwa-WWTP Cityhall Ganseok st. Juan st. Incheon gyo Pump Station Flooded area ANALYZING RESULTS

 Comparing the Result (Modeled VS Reported)

ANALYZING RESULTS  Result Video

CONCLUSION  The Simulation has been built through web-collaboration of Team-Red  Model has been run successfully with good looking result  The advantage mapping with 2D surface runoff modeling could be found as following –The terrain characteristic can be considered –The lag due to the puddle, discontinuity can be considered –The magnification of result can be prevented with distribution of flooded water to another manhole  This study is expected to be continued as following further plan

FURTHER PLAN  Applying Building layer map  Investigating the way to apply runoff coefficient  Applying RTC gate and pump  Discussion of 2D Runoff result  Discussion of Precipitation Intensity  Discussion of Solution  Comparison with results simulated with different parameters and model

Lets take pride in being TEAM RED !!!