Mapping and Management System for

Flood Risk Map

China Institute of Water Resources and Hydropower Research (IWHR)

Toronto, Canada, May 6-8, 2008

By Li Changzhi

Outline

Background

Framework

Functions

Remarks

I. BACKGROUND

Why we develop this system?

Flood risk mapping and management is important and urgent, but …?

I. Background

Different type of dataArcGIS, AutoCAD, MapInfo, MapGIS…

Different type of flood risk mapsFlood risk map for river (includes city)Flood risk map for detention basinFlood risk map for reservoir

Different baseEconomicTechnical

■■ FloodFlood

■■Flash floodFlash flood

■■Non FloodNon Flood

■■ FloodFlood

■■Flash floodFlash flood

■■Non FloodNon Flood

■■ FloodFlood

■■Flash floodFlash flood

■■Non FloodNon Flood

Pilot sites

Pangtoupao

The Yangzte River Basin

Linanyuan

The Songliao River Basin

Chaersen

Danjiangkou

Guanshan

Harbin

Chengdu

Yiyang

Lahai

Jingjiang

CityRiverReservoirDetention basin

I. Background

ChaersenMapGIS(*.wat)

PangtoupaoAutoCAD(*.dwg,*.dxf)

LaihaiAutoCAD(*.dwg,*.dxf)

HarbinArcGIS(*.shp)

I. Background

II. FRAMEWORK

How we develop this system?

Hierarchy of the platform

数据层用户

应用层用户

决策层用户

基破层用户（制定规范、验证规范、改进规范、服务其他用户）

WEB服务器

数据层用户

数据层用户

应用层用户

数据层功能模块

应用层功能模块决策层功能模块

C/S

C/S+BSC/S+BS

2006-10-24

基础层

数据库服务器1

2

34

By IP Address or Server Name

II. Framework of the platform

Common usersSpecial users

Map maker

Guiding rule maker

Main info in a flood risk map

General infoChina’s National Fundamental Geographic Info

Structural measures infoReservoirs, levees/dikes, detention basins…

Risk infoScope of floodingDepth of floodingVelocity of floodingTime of flood arrivalDuration of flooding

Risk-reduction infoVarious info for flood risk reduction

II. Framework of the platform

Standardization

Spatial data

Attribute data

Tables and their fields

Styles of layers

II. Framework of the platform

Component GIS

Powerful data integration

Flexible architecture

Integrated assemblageCore of GIS

General application software

Special industrial software

Internet-WEBGIS

Development tool -- SuperMap GIS

GIS Core

Special development

Application fields: land, military, water resources, environment …

III. FUNCTIONS

What can we do using this system now?

Main function modules

Some special functions

All maps browsing

In a detail map …

Integration of multi-sources data

Vector data

Raster data

III. Functions of the system - Some special functions

Make a new flood risk map

Name

Type•River/city•Detention basin•Reservoir

Sub-Basin

Administrative area

DatasourcesInfo type•Fundamental•Structural info•Risk info•Risk reduction

Available layers

Selected layers

III. Functions of the system - Some special functions

In a detailed map

display

List of maps

List of layers

Legend

III. Functions of the system - In a detail map

Show/hide layers Fundamental info layers

Structural measure info layers

Flood risk info layers

Risk reduction info layers

III. Functions of the system - In a detail map

Flood standard

Flooded area

Affected people

Affected property,Cities, railways, highways, etc.

III. Functions of the system - In a detail map

Evacuation way

Shelter

Water depth info

III. Functions of the system - In a detail map

Jiangwan town

Query the population and property in a flooded area

PopulationProperty

Flooded areaExposures

III. Functions of the system - In a detail map

Jingjiang Detention Basin

Map of water depthMap of flood arrival timeMap of flooding duration

III. Functions of the system – Map view

Map of water depthMap of flow velocityMap of flood arrival time

Danjiangkou Reservoir

III. Functions of the system – Map view

Waterloging in Chengdu city

III. Functions of the system – Map view

IV. REMARKS

What we learned from this work?

Specification – the baseDifferent management system – necessaryUser’s needs – the driving force

Flood managementLanduse planningFlood insuranceFlood risk popularization and education

Powerful GIS core – efficient toolSuperMap Objects, SuperMap iServer

Thanks for your any suggestions or comments!

Speaker: Li Changzhi

Email: lichangzhi@iwhr.com

Tel: 86-10-68781798Affiliation:China Institute of Water Resources and

Hydropower Research (IWHR)