Browsing by Subject "Chronometric levelling"

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Geodetic methods to determine the relativistic redshift at the level of 10-18 in the context of international timescales: a review and practical results

Denker, Heiner; Timmen, Ludger; Voigt, Christian; Weyers, Stefan; Peik, Ekkehard; Margolis, Helen S.; Delva, Pacome; Wolf, Peter; Petit, Gérard (Heidelberg : Springer Verlag, 2017)

The frequency stability and uncertainty of the latest generation of optical atomic clocks is now approaching the one part in 1018 level. Comparisons between earthbound clocks at rest must account for the relativistic ...
Towards an International Height Reference Frame Using Clock Networks

Wu, Hu; Müller, Jürgen (Berlin ; Heidelberg : Springer, 2020)

Establishing an International Height Reference Frame (IHRF) has been a major goal of the International Association of Geodesy (IAG) for a long time. One challenge is to obtain the vertical coordinates, i.e., geopotential ...

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