Geodetic Reference Systems. Evolution and current trends

Abstract

The article addresses the current trend of Geodetic Reference Systems (GRS), given that positioning technologies using Global Navigation Satellite Systems (GNSS) guarantee global coverage, with high operability and accuracy, which have replaced conventional systems and allow for adaptation to the International Terrestrial Reference Frames (ITRF) defined by the International Earth Rotation and Reference Systems Service (IERS). A novel and important aspect that contributes to science and technology is the methodological approach of the article, which argues the evolution and current trends of GRS, summarizing the way to adopt an ITRF.

The benefits of adopting an ITRF as a GRS (Geodetic Datum) are presented; as well as the inconsistency of local GRS for scientific studies on geodynamics; which constitute an obstacle for integration into projects scientists at the national, regional, and global levels.