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

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National Geospatial Information Platform

Thematic Map B Thematic Map A Thematic Map C

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• 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