Earthquake Disasters modeling using 3D Web-based GIS
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Earthquake Disasters modeling using 3D Web-based GIS
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Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization Rifaat Abdalla PhD Candidate GeoICT Lab., Center for Research in Earth and Space Science York University Toronto, Canada Vincent Tao Professor of Genomics Engineering, Canada Research Chair Center for Research in Earth and Space Science, York University
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Outline
Introduction Motivation Technical Overview System Architecture Implementation Issues Results and Concluding Remarks System Demo. Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Introduction
The City of Vancouver is the largest city in BC and the fourth largest Metropolitan Center in Canada. Located in an active tectonic zone. This project was part of Canada Disaster Management Information System (CDMIS) Proof of Concept/ Proof of Approach Initiative. York University GeoICT Lab, NRCan and private sector partners were involved in this project. Results of this project were presented as a part of routine Emergency Exercise. Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Motivation
The need for interoperable Disaster Management Information System that allow for multi-tier decisionmaking process and engage different departments concerned with DM/EM issues. The need for effective governmental organizational response to disasters that can address various aspects of systematic and jurisdictional considerations. The need for Multi-dimensional Visualization tool that can provide the ease of use for non GIS Professionals. Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Objectives
Demonstration of the utility of utilizing earth shake maps for earthquake modeling using GeoServNet. Emphasizing the importance of the spatial component of disasters through visualization. Providing 3D visualization perspective for the purpose of disaster management and emergency response Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Overview of the approach
Key considerations
Disaster planning scenarios were used to provide a relative context to 2D/3D visualization for disasters and emergency situations Supporting data sets used to demonstrate the effectiveness of integrating different data sources and visualization concepts Allowing for interoperable real time simulation and visualization. Addressing the effectiveness of GIS interoperability for effective multilevel decision-making
Seismological Models
Visualization
Functionality Development
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
Disaster Planning Scenarios
Internet GIS
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System Overview
Developed by GeoICT Lab, York University, GeoServNet (GSN) is a 2d/3d interactive Internet GIS package. GSN can handle raster, vector, DEM and attributes data types and link them together. GSN modules are: GSNBuilder, GSNAdministrator, GSNPublisher, and GSNViewer. GSN integrate different data formats in a single framework seamlessly. GSN 2D and 3D viewers work together enabling the end-user to view complex data structures.
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
GSN Builder GSN Server Web server Application Server Database Server
GSN Publisher
Attribute Database
Vector
DEM
Models
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
GSN Admin
Raster
Symbol Database
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Methodology Scenario Development
Data Collection GSC
BC
GVR
DMTI
ECOMM
Integrating Scenario Functions with GeoServNet
Modeling Multi-dimensional Visualization
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Scenario Storyline
November 28, 2002 @ 7:56am PST Location: Latitude 49.45 Longitude 123.941 The earthquake is shallow and at magnitude 7.3MMI with no surface rupture. At this magnitude and location, it is plausible to have the following occur; Landslide on Hornby Island Fracture building damage in the City of Vancouver Dam breach (assumed) Flood Inundation in the west coast (Tsunami Wave) Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Analysis and Processing - Shakemap
Earth Shake Maps are representation of ground motion recorded and extrapolated from knowledge of surface conditions.
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Analysis and Processing - Validation
Accuracy assessment analysis was done. Earth Shakemap was compared with WMTools package using the same parameters. There was general agreement between the two maps information
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Analysis and Processing Bathymetry and census information were used as background information for modeling flood inundation and for calculating population at risk
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Analysis and Processing – Flood Inundation
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Analysis and Processing – Damage Assessment
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Modeling Results GeoServNet Client Interface showing Vancouver Shakemap
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Modeling Results
GeoServNet 3D Vancouver Downtown Model Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Modeling Results
GeoServNet 3D Client Interface showing Vancouver Flood Inundation 3D Model with population
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Modeling Results GeoServNet 3D Client Interface showing Vancouver Flood inundation 3D model with Buildings and infrastructure at Risk
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Challenges Encountered
Data
One of the key challenges was to combine Federal, Provincial and Local datasets together. Each use different characteristics that define their requirements and needs. It was difficult to identify the suitable level of detail for the three levels of decision-making involved. Each look at the same location from own perspective. It was difficult to convince different departments that the data will be used from outside is an add up not replacement to their current data. Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Challenges Encountered
Functionality Development 3D GIS was not well perceived from some of GIS professionals. Web GIS with scalable structure was of interest to all three levels involved with this project. Shakemap visualization was very welcomed as a new risk assessment tool. Internet GIS has added additional dimension to modeling damage assessment; however, there was an argument about other factors to be incorporated in the model. i.e. Civil Engineering and Construction factors for accurate damage assessment. The major intent was to demonstrate deployable and scalable proof of concept rather than providing optimal solution.
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Challenges Encountered
Interoperability
Creating system nodes and data servers was constrained by Information access privileges. Clear policy issues needed to be addressed when accessing information databases for disaster management. The readiness of local level authorities to share their system resources and data was in question.
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Concluding Remarks • GeoServNet was efficient in integrating, processing and visualizing heterogeneous datasets in different formats from different sources. • Web GIS has provided the ease for real-time access and simulantaneous informed decision-making process for all the three government levels involved with Emergency Management Scenario simulated. • More collective efforts are needed for the implementation of effective interoperable GIS. • Policy issues related to information access during emergencies requires revision.
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Acknowledgement Special thanks to Dr. Burt Struik, Dr. Ko Fung and Patricia Pollock from NRCan. Thanks to Dr. Chris Tucker and Julie Cranton from PSEPC, and to Ron Martin from ECOMM at BC.
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
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Thank You
Integrated Distributed GIS Approach for Earthquake Disaster Modeling and Visualization
