A first step towards a national realisation of the international height reference system in Sweden with a comparison to RH 2000

Abstract The International Height Reference System (IHRS) was defined by the Association of Geodesy in 2015. Since then, international geodetic community has been working on specification and establishment its realisation, Frame (IHRF). This frame will primarily be realised geopotential numbers (or physical heights) a sparse global reference network. In Sweden, only one such station is planned. Regional national realisations densifications) computed accordance with IHRS definition are needed to enable best possible unification height datums. main purpose this article make case study for Sweden regarding realisation investigate what way preliminary IHRF differs from current Swedish levelling-based European Vertical System, RH 2000. two different quasigeoid models that we consider over at present time used compute study. compared each other It shown very significant part difference 2000 due postglacial land uplift epochs, permanent tide concepts, zero levels. standard deviation between reduced 75.5 19.2 mm after correction effects. corresponding mean differences –208.5 –454.7 mm, respectively. magnitude thus increases when corrections question applied.