Global Mapping: Updating, Verification and Interoperability

Our Mission

ISPRS Inter Commission Working group IV/III aims to promote the development of advanced methodologies and applications related to the update, verification and interoperability of geospatial databases.

After four decades of satellite based global monitoring, the research community is exposed to further challenges: the better spatial resolution and the increased number of land cover classes raised new problems of spatial and semantic accuracy. Increasing spatial accuracy required global DEM interoperability and refined land cover classes required the research on semantic interoperability. With improving interoperability, it will be possible to use more local sources for the verification and update of existing geospatial databases. Based on the actual trends that data continuity and global initiatives have stabilized the demand for geospatial information, the economic return of earth observation becomes a driving factor for further updates and new application fields. Therefore, our mission will include user and producer efforts as well as the implementation in mapping agencies and commercial organisations. This will be fully in line of the overall policy of ISPRS to strengthen the link between research, administration and industry.

Working Group Officers


Hao WU, ChairHao WU
National Geomatics Center of China
28 Lianhuachi West Road
Haidian District
Beijing 100830
+86 010 63881216



Ivana Ivánová, Co-ChairIvana Ivánová
School of Earth and Planetary Sciences
Curtin University
Kent Street
Bentley, Perth
+61 8 9266 2286



Dongyang Hou, SecretaryDongyang Hou
School of Geography and Environment
Shandong Normal University
No. 88 East Wenhua Road
Lixia District, Ji'nan
+86 0 18954104091


Terms of Reference

  • Advance knowledge on the global status of mapping and it’s updating in databases. This is of particular importance for countries with large areas for which imagery has provided interim information.
  • Investigate the update and verification of topographic vector datasets, digital terrain models, ortho-images and thematic (land cover) datasets from remotely sensed data with an emphasis on mapping in a production environment.
  • Assess links between high resolution images and mapping tools developed through research and their implementation in mapping agencies and commercial organisations.
  • Investigate synergy potentials between the various sensors for topographic and thematic mapping.
  • Determine optimum methodologies for the integration of mapping data with heterogeneous data sources including the results of area frame sampling methods like LUCAS for Europe or GMFS for Africa.
  • Review technical progress on global DEM data fusion methods and outcomes
  • Evaluate semi-automated and automated algorithms for change detection, update and quality control of spatial databases.
  • Evaluate web services for GLC data sharing, processing and validation
  • Identify best practise applications of geospatial datasets and promote pathways leading from interoperability via uniformity towards standardization
  • Collaborate with UN-GGIM and GEO tasks related to GLC (e.g., SB-02)
  • Strengthen the cooperation and knowledge exchange between regional clusters according to the UN-GGIM groups, especially between Europe and Africa
  • Promote the incorporation of administrations and industries in the development of application products of global and regional geospatial data sets









The International Society for Photogrammetry and Remote Sensing is a non-governmental organization devoted to the development of international cooperation for the advancement of photogrammetry and remote sensing and their applications. The Society operates without any discrimination on grounds of race, religion, nationality, or political philosophy.

Our Contact

Leibniz University Hannover
Institute of Photogrammetry and GeoInformation
Nienburger Str. 1
D-30167 Hannover