Guidelines for Basic Geographic Data DA-06-05 AIP Phase 2 Kickoff Workshop September 25-26, 2008 Boulder, Colorado, USA Yoshikazu FUKUSHIMA Secretariat.

Guidelines for Basic Geographic Data

DA-06-05

AIP Phase 2 Kickoff Workshop

September 25-26, 2008

Boulder, Colorado, USA

Yoshikazu FUKUSHIMA

Secretariat General of

International Steering Committee for Global Mapping

Geographical Survey Institute, Japan

Mission

Develop Guidance Document for Basic Geographic Data

Survey on Basic Geographic Datasets

38 National Mapping Organizations replied

Geodetic Reference

FrameStandardMap

Projection

Description

Vector, Raster

Data Quality

Good Examples

Basic Geographic

Data Security Copyright

Geodetic Reference Frame

Each country defined Geodetic ReferenceSome countries moved to Global Geodetic ReferenceHowever, huge amount of Data are based on old Frame

To be Global Geodetic Reference FrameTransformation Services exist

Map Projection

UTM has been widely acceptedSome countries apply other map projection by historical reasons

In order to integrate data, accurate knowledge is required Most appropriate map projection should be applied depending on the purpose

Description (Vector and Raster), Quality, Copyright and Security

Vector data type is suitable representing complex objects, on the other hand, Raster data type can be used for simple applications. Elements of quality are Lineage, Completeness, Logical Consistency, Positional Accuracy and Temporal AccuracySome limitations of use increase as the scale become larger from the point of national securityCareful attention to be paid when data is changed or re-distributed

Choose appropriate geographic data considering format and quality according to purpose of use Pay careful attention to Copyright and National Security

Basic Geographic Data

Basic Data is such data as commonly used and is defined as Topography, Bathymetry, River Systems, Infrastructure, Land Use/Cover, Administrative Boundaries and Residential AreaGlobal Map is 1km resolution consist of transportation, administrative unit, drainage systems, population center, elevation, land cover, land use and vegetation.

Recognizing the status of basic geographic data, appropriate geographic data should be used considering the purpose and method of data analysis

Good Examples

Many good examples in GEO applications were found in Disasters, Health, Agriculture, Biodiversities and Water.

GEO is a very good community in achieving the task especially comprehensive use with earth observations

Basic geographic data of smaller scale is mainly required in GEOSS.

Therefore Global Map is most fit with GEOSS SBAs.

Basic geographic data is most commonly used to show theme’s locations.

Administrative boundaries, DEM and land cover are used in specific SBAs

Standardization

International (ISO/TC211, OGC), Regional and National Standards (JPGIS) are important.Data Model including application schema, Spatial referencing, Quality and quality evaluation, Data Encoding, Data Search, Specifications and Web Map Service are discussed in Global Map.

Bearing the progress of standardization of geographic data in mind, make effort to use geographic data which assure interoperabilityTo use geographic data in complying with GEOSS interoperability arrangement

Guideline for Basic Geographic Data

Final Review: September 2008Final Document: October 2008

Current version can be downloaded from ISCGM Application/GEO/DA-06-05 in

http://www.iscgm.org/

Toward GEO WorkPlan 2009-2011

Enhance the use of Global Map Version1 to GEOSS SBAs.

Collect details of needs of basic geographic data in GEOSS SBAs.

Develop new specifications.

Develop Global Map by 2012 with capacity building

New Task Proposal (DA-09-03f of Ver.2)