Working Group 5.2 - Reference Frame in Practice
- see also WG 5.2's
own website at
http://www.fig.net/commission5/wg52
Policy issues
Policy Issues include the following:
- Work to bring together all organisations involved in defining or using
reference frames to develop common approaches and avoid duplication. Such organisations include FIG, the International Association of Geodesy (IAG),
ISO, groups of national mapping agencies, other influential national
agencies (such as the US Department of Defence’s National
Geospatial-Intelligence Agency (NGA), which is responsible for WGS84.) and
alliances of commercial organisations (such as Open GIS Consortium and the
European Petroleum Survey Group).
- Continue the existing co-operation with IAG on the African Reference
Frame Project (AFREF) as well as facilitate similar actions on other
continents such as South America and Asia.
- Provide background technical information on relevant issues written in a
way that is accessible to the surveying practitioners.
- Develop an inventory of approaches to reference frame issues in
different countries (including transformation methodologies) that is
accessible to surveying practitioners.
- Examine the concepts of dynamic and semi-dynamic datums.
- Examine how surveying practitioners are changing how they access the
reference frame, through less emphasis on networks of ground monuments and
more emphasis on Global Navigation Satellite Systems (GNSS) base stations.
- Examine global positioning services such as OmniSTAR and StarFire and
their use for positioning in a national reference frame.
- Examine the increased use of GNSS for height determination as well as
the use of geoid models for connection to local height datums.
- Examine the role that the satellite missions GRACE, GOCE and CHAMP will
have on global geoid models
- Examine the increasing role of aerial and space based imagery in the realisation of reference frames.
- Liaise with Commission 4 to review and revise (where required) FIG
Publication 37, Vertical Reference Surface for Hydrography
Chair
Specific project(s)
- Initiate, contribute and facilitate meeting(s) of all organisations
involved in defining or using (regional) reference frames to develop common
approaches and avoid duplication.
- Continue development of Technical Fact Sheets that briefly explain basic
concepts, practical applications and issues and which summarise the
activities of organisations with specific responsibilities in the field.
- Ensure terminology used in above publications conform to and give
substance to the relevant Standards coming from ISO TC211. .
- Ensure that the working group web page is running and updated.
Workshop(s)
- Participation in FIG Working Weeks and other major Commission events (see
events section below) with dedicated Technical Sessions and/or Workshops as
appropriate.
- Seminars and meetings involving key organisations involved in defining or
using (regional) reference frames will be convened at a venue, time and date
to be confirmed by the Working Group Chairs.
- Symposium on Applications of Permanent GPS/GNSS Networks. WG 5.2 and WG
5.3 event.
Publication(s)
- Web page
- FIG Working Weeks will include Technical Papers on specific issues and
presented by Working Group Members and other invited experts.
- Technical Fact Sheets as outlined above.
- Working group final report will be presented at FIG Congress, 2010. .
Timetable
- Draft publications will be presented at FIG Working Weeks during the term
of this plan and according to a timetable to be developed by the Working
Group Chairs.
- Working group final report: dedicated session, FIG Congress, 2010.
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