1d, 2d integrated flood risk mapping (incheon-gyo catchment)
DESCRIPTION
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. 2007. 8. 20. CONTENTS. HYDROASIA TEAM-RED INTRODUCTION OBJECTIVES OF STUDY PRE-PROCESSING WITH GIS - PowerPoint PPT PresentationTRANSCRIPT
1D, 2D integrated Flood Risk Mapping (Incheon-gyo Catchment)
2007. 8. 20Team RED
Seongjoon BYEON Myeongsoo HAMMichele ROMANO K. Shobha YADAV
Masahiko TERAZONOADVISER : 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
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
ValidationPreparation
GIS
Rainfall Analysis
INTRODUCTION
Incheon city– Area : 1002.07 ㎢
– Population : 2,686,022 persons
– Density of population : 2,680 persons/ ㎢
– Location : • A gateway to Northeast Asia with both international p
ort 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
석남배수분구
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2간석 배수분구
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• 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)
Location Residence Market Industrial Green Total
Incheon gyo CoveredOpenchannel
Left 743.3 145.9 226.3 77.1 1,183.6
Right 364.8 47.8 353.3 231.3 997.2
Seoknam Canal 204.4 38.4 357.9 310.2 910.9
Total 1303.5 232.1 937.5 618.6 3,091.7
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 Overflo
w
Figure 1 Application of Standard Links
Re-inflow after floodFlow-capacity excess
Sewage/Rainfall water
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
Option Value
Time Step1secMax Cr=0.4
Grid Size 10m
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
ANALYZING RESULTS
Comparing the Result
(Modeled VS Reported)
Hwasu Reservoir basin
Around Dohwa and Juan metro station
Seoknam Canal Basin
Gajwa girls juniorhigh
Sipjeong & Ganseok dong
Seoknam Canal
Hwasu Reservoir basin
Around Dohwa and Juan metro station
Seoknam Canal Basin
Gajwa girls juniorhigh
Sipjeong & Ganseok dong
Seoknam Canal
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 !!!