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Terms of Reference
International
Association of Geodesy Commission 4 intends to bring together scientists,
researchers and professionals dealing with the broad area of positioning and
its applications. For this purpose, it will promote research that leverages
current and emerging positioning techniques and technologies to deliver
practical and theoretical solutions for engineering and mapping applications,
GNSS technologies, sensors fusion, and atmospheric sensing, modelling, and
applications, based on geodetic techniques. Commission 4 will carry out its
work in close cooperation with the IAG Services and other IAG entities, as well
as via linkages with relevant entities within scientific and professional
sister organizations.
Recognizing the central role of Global Navigation Satellite Systems (GNSS) in
providing high accuracy positioning information today and into the future,
Commission 4 will focus on research for improving models and methods that
enhance and assure the positioning performance of GNSS-based positioning
solutions for a range of geodetic applications.
The Sub-Commissions will develop theory, strategies and tools for modeling
and/or mitigating the effects of interference, signal loss and atmospheric
effects as they apply to precise GNSS positioning technology. They will address
the technical and institutional issues necessary for developing backups for
GNSS, integrated positioning solutions, automated processing capabilities and
quality control measures.
Commission 4 will also deal with geodetic remote sensing, using Synthetic
Aperture Radar (SAR), Light Detection and Ranging (LiDAR) and Satellite
Altimetry (SA) systems for geodetic applications.
Whenever necessary, additional WGs and SGs can be established and dissolved,
the latter if they have achieved their goals or if they are inactive.