Creator of the rHEALPix Discrete Global Grid System
Contributor to OGC Abstract Standard Topic 21 - Discrete Global Grid Systems, responsible for the UML data model.
Founding co-Chair OGC Discrete Global Grid Systems Standards Working Group
co-Chair OGC / ISO Joint Advisory Group
Leader ISO 19170 - Geographic information - Discrete global grid systems work package to turn the OGC Abstract Standard Topic 21 into an ISO standard under TC211
Member of the NZ ISO TC211 Reference Group, and member of NZ TC211.