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UN-GGIM-Arabs Meeting
Sanghoon Lee, Ph.D. Deputy Director
National Geographic Information Institute(NGII)
Republic of Korea
5 February 2014
Reflection of Korea’s past experiences
History of Korea’s Geospatial Information
1995’ 2000’ 2005’ 2010’ Establish Base Map
- Develop digital map
- Computerize cadastral map
- Korea Land Information System
- Underground Facilities
Information System
- National Geospatial
Information Integration System
- disseminate Geospatial
Information System
Develop Application System Develop Interface
Integration System
Reflection of new technologies / Sharing and Openness / User-friendly environment
(1st) Paper Map→Digital Map (2nd) Thematic Map (3rd) Establishment of NSDI
Challenges
Practical use of GI
City Management
(Seoul City)
Municipalities
Central Government Research Institutions
Private Enterprises
Commercial area Analysis (Samsung Electronics, Inc.)
Urban Hazard Mapping (National Emergency Mgmt. Agency)
Statistical Research (National Statistical Office)
National
Spatial Data
Infrastructure
76systems of 23 organizations are interoperated
On/off-line
With Korea’s NGI Policy
1st National GIS Project (‘95-’00)
2nd National GIS Project (‘00-’05)
3rd National GIS Project (‘05-’10)
4th National SDI Project (’10 - )
$ 242.2 million $ 395.4 million $ 385.7 Million $ 246.7 Million
Digitalization of map Computerization of Topographic Map & Cadastral Map Established Thematic map such as land Use Map and Underground Facilities Map
Framework Data Establish Framework Data such as Roads, Sewers and Buildings Propelled Utilization System for land Usage, Underground etc
Integration of GIS Data Establish National Base Map of the Sea, Aerial Image Propelled Establishment Of Utilization System for 3 Dimension National Geospatial Information
National Spatial Data Infrastructure Maintain and Manage the Geospatial Information and Establish its utilization Renovate Digital Cadastre Build 3-D National GI
Korea has established a reliable geospatial Information infrastructure by systematically driving national geospatial information policy
Supported by Act on NSDI(‘00) Industry Promotion Act
(‘09) was enacted
Acts related to NSDI
National Spatial Data Infrastructure Act (2000)
Provide for matters concerning the efficient construction of the national spatial data system
Integrated utilization and management of the national spatial data
contributing to the development of the national economy through the rational use of the national territory and natural resources
Spatial Data Industry Promotion Act (2009)
Contribute to the development of the national economy and the qualitative improvement in human life
Strengthening the competitiveness of the spatial data industry and promoting the development
Ground Survey · Water Survey and Cadastral Act (2010)
Regulations of standard and procedure for ground survey, water survey and cadastral survey
Contribute to the effective management of national resources, to assure a safety of maritime traffic and to protect people's property rights
Vision of NGII
Renovation of
Production Process
Extension of Data
Integration and Fusion
Improvement of
Data Applicability
• Revision Process
• Seamless Map
• Automatic 3D Map
Generalization
• MMS, UAV, GIS-BIM
• Combination with
Marine & Aviation data
• Indoor & Underground
Space Mapping
• Coordinate Geonames
• Time Series Archive
• Semantic Web
• Volunteered GI
Aerial Photo Digital Aerial Photo (10cm)
Near- infrared Aerial Photo
1m DEM from LIDAR (Before)
1m DEM from LIDAR (After)
Revision of National Map
Debris flow analysis
Satellite Image
UAVs
Glider/Helicopter type UAVs (150-300m, 20cm)
Aerial photo (500 m * 300m)
DEM
3D GI
Comparisons with Feature-based 3D city model
Vworld (Korea’s 3D City model project) Google Earth
Indoor geospatial model from BIM & Laser-scanner
Map Museum at NGII Subway Station
Volunteered GI
Vespucci PotLatch
Merkaartor
VGI quality assurance tool
National Mapping Authorities
VGI
Metadata QC. from comparison with National GI
QC. from history analysis
GIS-BIM
Ubiquitous Public Access
Paper map
Digital GI
Web /Mobile GI
Ubiquitous GI
Digital Maps, GeoDatabase, Desktop GIS, Enterprise GIS
Web Maps,
Mobility,
Location Based Service
Ease to Use,
Public Access,
Context-awareness
Passive consumers Active participants
Ubiquitous GI
ISO Project 19154 Geographic Information – Ubiquitous Public Access – Refer
ence model, DIS Stage
Current Status of Mapping
• National Orthophoto
– Aerial digital camera with 0.25m GSD
– Completed end of 2012
• National DEM Generation
– Currently completed about 80%
– 1m & 5m grid DEM with airborne LIDAR data
– Replace contours with LiDAR
– Completed end of 2014
• 3D Spatial Model Generation
– Performed with local governments
• Biannual Updating plan
– Started from 2011
– Aerial digital camera
• Weekly Updating plan
– A quarterly update from 2008
– A monthly update from 2010
– A weekly update from 2013
– Toponyms & administrative boundaries
• 1:1,000 Topographic map
– Depends on local governments
– Ground surveying
• 1:5,000 National base map updating
– Digital aerial images (GSD: 0.25m)
– Contours generated using airborne LiDAR
National Mapping Projects Updating National Base Maps
Data Quality Standards
• Important to specify accuracy of topography, geographical features and objects represented in the maps.
• Each country has its own accuracy level(or AQL) maintained by official mapping agency. Korean topographic mapping accuracy level established by NGII.
• Accuracy of the maps must be verified through data quality procedures of International Standards of GI - data quality (ISO/FDIS 19157)
Map scale Aerial photo scale GSD(m)
1:1,000~1:1,200 1:5,000~1:8,000 ≤ 0.12
1:5,000 1:18,000~1:20,000 ≤ 0.42
1:25,000 1:37,500 ≤ 0.80
Map scale Planimetric(m) Vertical(m)
1:500 ≤ 0.15 ≤ 0.15
1:1,000 ≤ 0.20 ≤ 0.17
1:2,500 ≤ 0.40 ≤ 0.30
1:5,000 ≤ 0.80 ≤ 0.60
1:10,000 ≤ 1.0 ≤ 1.2
1:25,000 ≤ 1.5 ≤ 2.0
Relationships: Map scale, photo scale and GSD
Permissible misclosure of absolute orientation
Note: NGII and ASPRS require similar accuracy level
16
National Geospatial Information Platform
Thematic Map B Thematic Map A Thematic Map C
16
• Maintain consistent geospatial information
• Decrease in duplication of developing geospatial data
• Supervise related data-set in the moment revision
Shared Reference(Metadata, ID) /Dataset (Basemap)
Geo-Platform for Data Sharing
WMS, WFS, WPS SHP, DGN, CAD
Other Engineering Domains
Land Portal
On-Map
NGII
Key to Interoperability
Extend datasets to SDI
NEMA
Municipals Office
Central Government
Pdf-style Map
3D-based WebGIS Portal
Support to Dataset (National base-map,
Thematic maps) In a standard manner
(UFID, Metadata)
Policy plan to support preparedness, mitigation, etc
Assess & Respond Recovery action, etc
Respond, Recovery, Re-construction action, etc
Proof of Concepts : Disaster Mgmt.
GGIM-Korea Forum : Background
Hard to
respond
only by NGII
Survey Mapping Satellite I T
Cadastre Marine Construction Transport
Geospatial data development Data dissemination
Geospatial data Application
NGII Participating Activities
UN-GGIM : Global Map for SD WG, WG on Global Geodetic, Geo-Statistics WG,
Legal & Policy WG, GeoStandard TF, Development Account, ….
UN-GGIM-AP : WG1 Geodetic Framework, WG2 Geoportal for DM, ….
GGIM-Korea Forum : Background
19
Discuss global priority issues
Contribute to the discussion
and activities of UN-GGIM as a
member country
Industry
Others
Society
Research
Government
Development of Cooperative System to effectively respond
to the global needs in national perspective
GGIM-Korea Forum : Structure
Forum - Knowledge Exchange
Committee of Experts - Technical Discussion
GGIM-Korea
WG 1
Geodesy
WG 2
Geospatial Data
WG 3
Land Management
WG 4
Disaster
Management &
Social Service
GGIM-Korea Forum : Activities
• Investigate geodetic status in the Asia-Pacific region
(China)
- Mean sea level at Qingdao tide
gauge
- Normal height
(Japan)
- Mean sea level of Tokyo Bay
- Orthometric height
(Australia) Australian Height Datum
- Mean sea level at 32 tide gauge
sites
- Normal-orthometric height
(Malaysia)
- Mean sea level at certain locations
- 5 vertical datums
(Mongolia)
- Connected to Russian levelling
network
- Orthometric height, Normal height
(Azerbaijan)
- Baltic vertical datum-1977
- Orthometric height, Ellipsoidal
height
GGIM-Korea Forum : Activities
• Aug 2012 : 1st Forum of GGIM-Korea
• Jun 2013 : 2nd Forum of GGIM-Korea
• Nov 2013 : 3rd Forum of GGIM-Korea