geospatial technologies integration for water resources management … · 2012-07-19 · geospatial...
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®
www.gis.tw
Geospatial Technologies Integration for Water Resources Management in Taiwan
GIS Research Center, Feng Chia University
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Outlines
• Water Resource Protection• Problem Statements• System Architecture• System Demo• Conclusion
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Water Resource In Taiwan
• vulnerable geological structure
• 75% mountain area
• rush river flows
• steep topography
• Taiwanese government faces a problem, namely, how to effectively manage these reservoirs
?
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• Taipei water resource district is located at the southeast of Taipei, Taiwan.
• The area is 717 square kilometers and supplies the civil water for 5 million residents
• Goal:Effectively manage water resource
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Problem Statements
5
Where is my home?
Is my home on sensitive area?
What sensitive area are near my home?
I want to know the rainfall in this typhoon.
…
People
How is water quality and rainfall in this moment?
Are anybody live near sensitive area?
I want to know the monitor stations data and other divisions data. It can help us to decision.
…
Manager
Real-Time Data
External Data
Sensitive Area
Address
We need to solve
Problem
Role
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Architecture
Web GIS
WRIIMS
ArcSDEArcGIS Server Web Server
DataComputing
Display
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System Function
Sensitive Query1
Layer2
2D/3D Mode3
Water Data Display4
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Locating the addressAddress Source:
• TGOS• GoogleLocation:
• Identify Query• Cadastral Layer
request
xml TGOS
Server
Parse & show
request
xmlGoogle
Service Type
Result
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Location Query with different layers
• Query feature by condition
• 12 Layer
• External Data & SDE Data
External Data
Queryconditionfeature
SDE
Server
Intermediaryget & send requestget & send result
Condition
Result
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Overlay
Category• Basic(12)• Geological and topographical(10)• Hydrological(29)• Sensitive environment(2)
• All layers can be opened by Google Earth in the left window
• All layers can be opened only with specific scales
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Identify layers
Click to query
Layer nameLayer Information
• the intersection of 10sensitive Layer Query
• Layer switch
• Layer information
User can make a pin on the map, then click“location layer query button”.
The query results will be shown on right hand side.
The results include
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2D/3D ModeKML• Basin• Drink Water Protect Zone• Coast• Hillside• …• …DrawThe features get from ArcGIS server. It can draw dynamically on Google Earth .
Feature Set
Layer Name
DrawFeature
Open KML
Scale & Envelope Synchronous Change
Google Earth Server Web
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Water Quality
• Query Reservoir’s Quality
• The data get fromEPA’s web serviceMonitoring stations
• InformationSampling depthCTSIEutrophication & Trends……
Environmental Protection Administration, R.O.C.
*EPA:
request
xmlEPA WebServcie
Server
Parse & show
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Conclusion
• Integrated Manage– Quickly Search– RealTime Data– Auto Response– Helpful for Analysis
• Rich and Friendly User Experience– Low learning curve
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Thank You For Listening!