GLOBAL GEODETIC OBSERVING SYSTEM— CONSIDERATIONS FOR THE GEODETIC NETWORK INFRASTRUCTURE
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M. Pearlman et al., GLOBAL GEODETIC OBSERVING SYSTEM— CONSIDERATIONS FOR THE GEODETIC NETWORK INFRASTRUCTURE, GEOMATICA Vol. 60, No. 2, 2006, pp. 193 to 204, doi: https://doi.org/10.5623/geomat-2006-0022
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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
Public Domain Mark 1.0
This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract
Properly designed and structured ground-based geodetic networks materialize the reference systems to support sub-millimetre global change measurements over space, time, and evolving technologies. The Ground Networks and Communications Working Group (GN&C WG) of the International Association of Geodesy’s Global Geodetic Observing System (GGOS) has been working with the IAG measurement services (the IGS, ILRS, IVS, IDS and IGFS) to develop a strategy for building, integrating, and maintaining the fundamental network of instruments and supporting infrastructure in a sustainable way to satisfy the long-term (10 to 20 years) requirements identified by the GGOS Science Council.
Activities of this Working Group include the investigation of the status quo and the development of a plan for full network integration to support improvements in terrestrial reference frame establishment and maintenance, Earth orientation and gravity field monitoring, precision orbit determination, and other geodetic and gravimetric applications required for the long-term observation of global change. This integration process includes the development of a network of fundamental stations with as many co-located techniques as possible, with precisely determined intersystem vectors. This network would exploit the strengths of each technique and minimize the weaknesses where possible. This paper discusses the organization of the working
group, the work done to date, and future tasks.