national gis (sometimes called nsdi) vision and technology vision and technology 1 nat. gis creating...
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National GIS (Sometimes called NSDI)
Vision and Technology
1Nat. GIS
Creating a Geospatial Framework for Collaborative Government
Today GIS Is Very Valuable to GovernmentUsed in Many Integrated Applications
. . . Providing Critical Infrastructure
Crime
Human Health
EducationLogistics
Energy
Defense/Security
Agriculture/Forestry
Public Safety
Global Warming
Urbanization
Pollution
Congestion
Land UseOceans
Business EfficiencyWater
Development
Biodiversity
Population
Economic Recovery
Humanitarian Relief
National Security
Conservation
Land Management
Improving Planning, Management and Decision Making . . .
Science/Modeling
Emergency Management
Facility Management
Energy
Natural Resources
Environmental Protection
Law Enforcement
2Nat. GIS
Many Agencies Share Data as Part Of Their Core Mission( Census Bureau / USGS / USDA . . .)
Data Clearinghouses Have Improved Access . . .. . . But These Efforts Haven’t Resulted in a Geospatial Framework
3Nat. GIS
(Geodata.Gov)
A Common Resource
Systematic Data Creation & Sharing . . . . . . Has Been a Key to This Success
GIS Technology is Changing - Becoming Internet Focused Richer, Easier & More Pervasive New Styles, Patterns & Techniques
New Media
Mashups
UGC
Web 2.0
Geodata
Mobile
Real-TimeData
WebMaps
SocialNetworks
New Services
Many Opportunities for Spreading Geography Everywhere
euc09
Governments Are Beginning to Create Geo-Services
Shared Geospatial Resources
Moving from Data File Sharing to Creating Standards Based Services . . . . . .Opening Access to Many New Users & Applications
Services
5Abu Dhabi
Using the Internet as a Platform
Providing Building Blocks of NSDI
StandardizedOpen & InteroperableEasily IntegratedEasy to Use Application Ready
GeoServices will be Implemented Rapidly Supporting a Large Community of Users & Applications
Integrating All Levels of Government . . . Supporting Open Access, Collaboration & Transparency
GIS Services
Gov. – Bus.Gov. – Bus.
Gov. – Gov.Gov. – Gov.
Gov. – EducationGov. – Education
Gov. – CitizenGov. – Citizen
GIS Applications
Nat. GIS
Providing a Platform for NSDI
6
A National GIS / NSDI Could Emerge A Distributed Network of Systems & Services
Nat. GIS 7
Providing
• Quality Mapping• Authoritative Data • Analysis/Modeling• Rich Applications
. . . Integrating National, Regional & Municipal Geospatial Knowledge
Gov 2.0
The Foundation Will be New Computing Paradigms
Web 2.0s—mash-ups
Cloud computing
Efficiency and reliability
Agility
Integrate diverse content
GIS Servers / Services
Sharing
Services Based Architecture
Mobility
Extend enterprise& support real time
China Figured this out!Building Real Systems with Real Applications
Nat. GIS 9
Chen Shu PengLeader of GIS Movement in China
分 享 地 理 价 值Virtual Cities
Utilities
Transportation
Urban Management
Remote Sensing
Topographic Mapping
GIS in China is A National PriorityA fundamental part of their 5 year planning Strategy
Human Health & Disease ControlDisaster Response
Land Information Systems
Water Resources
Nat. GIS 13
Natural Resource and Geo Spatial Information Foundation Database Exchange System
Project Overview
Goals And Major Content
Implementation Plan
Technical Architecture
Application Models
Project Overview
China’s Central Government decided to develop a national System
• Geospatial is one of “four information foundation databases”
in China’s e-government– Essential in coming years– Needed for Economic growth and Social Development
• A government regulation (2007-17 “tenth-five” development cycle.
. . . Facilitated and lead by the Development and Reform Commission, collaborating among related government organizations
participantsLead
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Office of the National Spatial Information Coordinating Committee
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Project Participants
One Main Data Center—Natural Resource and Spatial Information
Database Main Datacenter
2. Water resource data center
3. Resource and environment science data center
4. Ocean and oceanic satellite resource data center
5. Survey data center
6. Forest resource data center
1. Land and mineral resource data center
7. Resource satellite data center
8. Satellite remote censoring data center
9. Climate and climate satellite data center
10. Military survey data center
11. Military space resource data center
11 Sub Datacenters
信息库项目建设及运行组织体系
Data Management Challenges
• Collaborative development and maintenance the foundation data • Complexity of integrating spatial information• Diversity of data and service types• Database update is essential for mission critical applications
Major Goals and Contents
• Promote the sharing and exchanging of information in government(Compliant with standards)
• Establish one major datacenter and 11 sub datacenters • Provide the capability of information exchange and sharing services
• Rely on government networking infrastructure• Provide services to the general public. • Support state level integrated decision making• Apply geospatial services to other e-government systems
Major Services
• System Components– metadata sharing service– data sharing service– application services– database system– operating and management system
Ge
neral A
rchite
cture
网络要素服务 网络地图服务 网络覆盖服务 目录服务 交换系统
WFS WCSWMS CAT网络要素服务 网络地图服务 网络覆盖服务 目录服务
资环 气象林业海洋 遥感航天测绘
交换系统WFS WCSWMS CAT
综合库
水利国土 军测 总装
元数据与空间数据共享技术平台
空间元数据共享服务系统
空间数据共享服务系统
空间信息共享运行管理系统
空间信息应用服务系统 空间数据虚拟总库系统
电子政务外网
分中心
主中心
电子政务外网/Internet
数据/元数据
服务
客户端
系统用户Web浏览器用户
服务
客户端
(一)交换系统总体框架
Main datacenter
Gov Public Net
Sub Datacenters
Spatial Information Application Service System
Operating ManagementSystem
SharingServiceSystem
MetadataSharing ServiceSystem
VirtualMainDatabasesystem
Metadata and spatial data sharing technical platform
BrowserUsers
SystemUsers
Client
Services
Client
Services
Data /Metadata
Web Feature Service
Web Map Service
Web Coverage Service
CatalogService
Exchange System
Web Feature Service
Web Map Service
Web Coverage Service
CatalogService
Exchange System
National SystemGeneral Architecture
System Service Metrics
• Service capability: – government public network – no less than 12,000 online users – no less than 1200 concurrent accesses; – Access from internet – no less than 100 000 users with no less than 1000 concurrent accesses;– unlimited offline users
Multi-layer Server Architecture
Server A
rchitecture
应用服务器
Web服务器集群:部署空间信息共享应用服务系统和空间信息共享运行管理系统
应用服务器集群:部署虚拟总库服、影像地图、元数据、WebGIS和GIS中间件服务器软件系统
负载均衡交换机
第一层
第二层
第三层
数据库服务器集群:部署大型关系数据库管理系统
Web服务器 Web服务器
空间数据服务器 空间数据服务器
数据库服务器 数据库服务器
空间数据服务器集群:部署空间数据引擎服务器软件系统
应用服务器 应用服务器 应用服务器
Load Balancer
Web ServerWeb Server
ApplicationServer
ApplicationServer
ApplicationServer
ApplicationServer
Geodatabase Server
Geodatabase Server
Database Server
Database Server
Layer one
Layer two
Layer Three
Web service clusteringSpatial information sharing operating and management system
Application server clustering: Virtual database, imagery, metadata, WebGIS, middleware software
Geodatabase server clustering: deploy spatial database engine and software
Database server clustering:
Large relational database system
Application Models 交换系统应用模式
• Layered Architecture: Data Layer and Application Layers
• Data aggregation & distribution services• Exemplary applications
– map & imagery services w/ browsing, ordering system, etc.• Decision support applications (Future)