Abstract
The present study deals with the determination of Mount Olympus summit (Mytikas), exploiting modern observations such as Global Navigation Satellite Systems (GNSS) and existing geodetic information. The last official Olympus height determination goes back 102 years by the Swiss surveyor M. Kurz. Since then, only unofficial measurement campaigns have taken place. There is a variety of released heights, which range from 2917 to 2919 meters. In September and October of 2022, we conducted a GNSS campaign, focusing on the area of highest Olympus peaks. Employing precise GNSS measurements (accuracy of 1–3 cm), in conjunction with height information from Greece’s National Triangulation Network (5–10 cm accuracy) and an appropriate, recent geoid model (5–6 cm accuracy), we estimate through the so-called GNSS-levelling, the height of Olympus to 2917.727 m with respect to Greece’s officially accepted mean sea level and 2918.390 m with respect to the global vertical datum. Our estimation of Olympus highest peak shows remarkable consistency at the level of 12.8 cm to that of M. Kurz in 1921.
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