1. ggim.un.org “Positioning geospatial information to address global challenges” Overview of the Global Geodetic Reference Frame “Positioning geospatial information to address global challenges”

2. ggim.un.org “Positioning geospatial information to address global challenges” Global Geodetic Reference Frame  The United Nations General Assembly adopted resolution 69/266 on a Global Geodetic Reference Frame for Sustainable Development (A/RES/69/266) in February 2015  This decision reinforces the importance of the GGRF

3. ggim.un.org “Positioning geospatial information to address global challenges” Global Geodetic Reference Frame Strengths  significant expertise and infrastructure in most developed countries  can help to mitigate the impacts of sea level rise, tsunamis and earthquakes

4. ggim.un.org “Positioning geospatial information to address global challenges” Global Geodetic Reference Frame Strengths  enables the interrelationship of georeferenced measurements taken anywhere on the Earth  essential for effective decision making and finds application in geospatial information management, mapping and navigation

5. ggim.un.org “Positioning geospatial information to address global challenges” Global Geodetic Reference Frame Challenges  current distribution of core observatories is not homogeneous.  particularly sparse in developing regions, such as Africa and South-East Asia

6. ggim.un.org “Positioning geospatial information to address global challenges” Yarragadee Geodetic Observatory, Western Australia

7. ggim.un.org “Positioning geospatial information to address global challenges” Global Geodetic Reference Frame Challenges  reliant on the best-effort contributions of several hundred individual organisations  core observatories rely on aging infrastructure, especially the SLR and VLBI systems.

8. ggim.un.org “Positioning geospatial information to address global challenges” Global Geodetic Reference Frame Challenges  absence of appropriate GNSS infrastructure in many developing countries mean that the GGRF is difficult to access and is underutilised  Lack of technical capacity makes use difficult in many developing

9. ggim.un.org “Positioning geospatial information to address global challenges” GNSS Ground Infrastructure

10. ggim.un.org Positioning geospatial information to address global challenges Global Geodetic reference frame for sustainable development Global collaboration