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The GGOS 2020 Page

In the period from April 2006 to December 2008, a team of international experts representing all relevant scientific fields prepared a book on The Global Geodetic Observing System: Meeting the requirements of a global society on a changing planet in 2020, denoted shortly as the GGOS 2020 book. In several specific chapters, this book provides a comprehensive overview of a wide range of scientific and societal applications depending on geodetic observations and products and the corresponding observational requirements. Moreover, the book provides conceptual considerations for a future geodetic reference frame that would meet these requirements and the general features of a future global geodetic observing system that would ensure sufficient and appropriate observations. Likewise, the organizational issues for the administration of this observing system in the frame of the International Association of Geodesy are addressed.

The preparation of the GGOS 2020 book was part of the GEO Sub-Task DA-09-02c (former Task AR-07-03) included in the Work Plan 2009-2011 of the Group on Earth Observation (GEO).

This web page provides general information on the preparation of the GGOS 2020 book. More information is available on request from the lead editor, Hans-Peter Plag. An overview of the members of the Writing Team is available as pdf.

Here you will find the GGOS 2020 recommendations

A brief GGOS 2020 History

The GGOS 2020 Process was initiated in April 2006. The original idea was formulated during a discussion first with John LaBrecque, Bjorn Engen and Hans-Peter Plag, which was later joint by Markus Rothacher. During the Fifth Meeting of the GGOS Steering Committee the concept was proposed to the Committee (see the minutes available at the web page of the Fifth Meeting of the Steering Committee). In May 2006, the GGOS Executive Committee compiled a first Writing Team, with Hans-Peter Plag as the Lead Editor. Subsequently, the Writing Team had a number of meetings and telecons and developed the draft GGOS 2020 Book. The progress was frequently reviewed by the GGOS Executive Committee and the GGOS Steering Committee.

Early in 2007, a draft was sent to six reviewers, and five of these provided very helpful comments. These comments lead to considerable modifications of the draft.

In May 2007, a new draft was made available to the wider IAG Community for review. More than 300 individual comments were provided in eighteen submissions by individuals and representatives of IAG Services and Commissions. These comments led to further extensive revisions of the document. At its 13th meeting, the GGOS Steering Committee requested that the book would be reviewed by a Panel to be set up by the IAG Executive Committee. This review was completed in December 2008, and a final revision of the book was carried out. The manuscript was submitted to Springer in April 2009, and the book was published on August 15, 2009. See the Flyer for more information ...

The GGOS 2020 Schedule

The following schedule provides an overview of past and planned activities and milestones:

  • Request for Strategy paper of the GGOS Steering Committee in April 2006.
  • Draft Structure and Initial GGOS 2020 Writing Team (SWT) in June 2006.
  • First Meeting August 21-22, 2006, Washington, DC: Two documents (Strategy and Reference Doc.).
  • First draft GGOS 2020 book available on October 5, 2006.
  • GGOS Workshop 2006, October 8-9, Munich.
  • GEO Plenary in November 2006 accepts Task AR-07-03 with GGOS 2020 book as official deliverable.
  • GGOS Retreat and GGOS 2020 Writing Team Meeting, February 19-22, 2007, Oxnard, California.
  • GEO Architecture and Data Committee, March 31, 2007, accepts GGOS 2020 book as document on the GEO Plenary Level.
  • GGOS 2020 Forum at EGU
  • Draft GGOS 2020 book available for internal hearing in IAG on May 29, 2007.
  • Internal IAG hearing phase until June 22, 2007.
  • Revision and finalization phase up to December 2007.
  • Consideration of the GGOS 2020 book in the GEO ADC in Spring 2007
  • Semi-final draft GGOS 2020 book available for the GGOS 2008 Retreat, March 2008.
  • Final draft GGOS 2020 book available for IAG Review Panel, 22 October 2008
  • GGOS 2020 book submitted to Springer, 15 April 2009.
  • GGOS 2020 book published by Springer: 15 August 2009.

Last edited 19 August 2009

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© 2007, 2008, 2009, Hans-Peter Plag

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