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Progress Report on African Reference Frame AFREF, 20032005

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Title: Progress Report on African Reference Frame AFREF, 20032005


1
Progress Report on African Reference Frame
(AFREF), 2003-2005
  • By
  • Dr. Wilber Ottichilo
  • Director General, Regional Centre for Mapping of
    Resources for Development
  • Nairobi, Kenya

2
Introduction
  • Importance of African Reference Frame (AFREF)
  • To have a Unified Geodetic Reference Frame for
    Africa as a Fundamental basis for National and
    Regional 3D Reference Networks Fully Consistent
    and Homogeneous with the International
    Terrestrial Reference Frame (ITRF) Standards.
  • AFREF will Consist of a Network of Continuous,
    Permanent GPS Stations such that a User Anywhere
    in Africa would have Free Access to such
    Stations.
  • Its Full Implementation will Include a Unified
    Vertical Datum and Support for Efforts to
    Establish a Precise African Geoid.
  • AFREF on its Realisation Shall Therefore be a
    Modern and a Common Reference Frame for African
    Continent based on Global Navigation Satellite
    System (GNSS) Technology and Consistence with
    ITRF and IGS Standard

3
Introduction Cont..
  • Windhoek Declaration
  • The Declaration was formulated during the
    Governing Council meeting of RCMRD which was held
    in Windhoek in December 2002.
  • The Declaration Urges African Countries to fully
    Participate in the AFREF initiative and
    Recommended UNECA to adopt and coordinate the
    initiative under CODI-GEO.
  • Adoption of the Declaration
  • The UNECA Committee on Development Information
    (CODI) has Adopted the Windhoek Declaration and
    the AFREF project as a priority project and has
    created a Working Group within one of its
    sub-committees namely CODI-Geo to deal
    specifically with the project in 2004.
  • The International Association of Geodesy (IAG)
    has also formally adopted AFREF as a project
    within its structures with the formation of
    Sub-Commission 1.3d (Africa) within its
    Commission 1 (Reference Frames).
  • The International GPS Service (IGS) and the
    International Earth Rotation and Reference
    Service (IERS), have both committed their support
    to AFREF.

4
Progress
  • AFREF Workshop held at RCMRD During the 5th
    African Association of Remote Sensing and
    Environment (AARSE) Conference
  • The main Purpose of the workshop was
  • to receive reports from regional African centres
    and national mapping organisations within Africa
    and international organisations that are
    currently involved with AFREF activities and
  • to set out a way forward
  • Approximately 35 Delegates (mainly from National
    Mapping Agencies) Attended the Workshop.

5
Progress Cont
  • Outcome of the Meeting
  • Formulation of TOR for AFREF Executive Steering
    Committee
  • Formulation of Organisational Structure for
    Implementation of AFREF
  • Formulation of TOR for Regional Centres

6
CODI-Geo AFREF WG Steering Committee Wilber
Ottichilo Dir RCMRD (co-chair) Mufta Unis Sec
Gen OACTS (co-chair) Richard Wonnacott Chair
IAG SC 1.3d (Africa) Jide Kufoniyi Dir
RECTAS CAFREF Congo Brazaville EAFREF - L
Mollel (Tanzania) NAFREF - Tunisia SAFREF - K
Owalabi (Namibia) WAFREF Nigeria HartRAO L
Combrinck
Scientific and Technical Advisory Committee
(Proposed During Cairo Meeting)
7
Preparation of Call for Participation Paper
  • Aim of the Paper
  • To Call for Partners to Participate in the
    Project
  • The Draft Paper was Prepared by the Regional
    Centre for mapping of Resources for Development
    (RCMRD) and Discussed further at FIG/GSDI
    Conference held in Cairo in April 2005
  • The Draft Paper was Further Discussed and
    Modified During the Cairo Meeting
  • The Paper is being Finalized and when Ready will
    be submitted to UNECA for Official Mailing to
    Countries and Partners

8
AFREF Meetings at Cairo FIG/GSDI Conference
  • Steering Committee Meeting
  • To Discuss and Arrange a Meeting with Various
    International Partners who were Attending the
    Conference
  • To Discuss and Finalize the call for
    Participation Paper
  • To Discuss and Agree the Convening of Technical
    Workshop in Cape Town in January 2006

9
Meeting with Prospective International Partners
  • During the Meeting Brief Presentation was Given
    on AFREF
  • Proposed Implementation Mechanism
  • Request for Support and Participation by
    International Collaborators
  • Proposed AFREF Technical Meeting in Cape Town
    South Africa in January 2006
  • Reactions by International Partners
  • Overall the International Partners Pledged to
    Support the Project

10
The Way Forward
  • Finalization of call for participation Paper by
    May 2005
  • Mailing of the Paper of the Paper to Countries
    and Partners by UNECA by June 2005
  • Creation and Hosting of AFREF Website by UNECA by
    end of May 2005
  • Conduct Survey of GPS Geodetic NETWORK in Africa
    before Cape Town Workshop
  • Convening of Technical Workshop in Cape Town in
    January 2006 (Meeting to be Organized by
    Executive Steering Committee, IAG) and funded by
    UNOOSA.

11
  • Thank You
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