Research on gravity ﬁeld modelling and gravimetry in Poland in 2015-2018
J. Kryński , P. Dykowski , Tomasz Olszak
AbstractActivities of the Polish research gSDroups concerning gravity ﬁeld modelling and gravimetry in a period of 2015–2018 are reviewed and summarised in this paper. The summary contains the results of research on the evaluation of GOCE-based global geopotential models (GGMs) in Poland and geoid modelling. Extensive research activities are observed in the ﬁeld of absolute gravity surveys, in particular for the maintenance of nationalgravitycontrolinPoland,Sweden,Denmark,theRepublicofIrelandandinNorthern Ireland as well as for geodynamics with special emphasis on metrological aspects in absolute gravimetry. Long term gravity variations were monitored in two gravimetric laboratories: the Borowa Gora Geodetic-Geophysical Observatory, and Jozefoslaw Astrogeodetic Observatory with the use of quasi-regular absolute gravity measurements as well as tidal gravimeterrecords.Gravityseriesobtainedwereanalysedconsideringbothlocalandglobal hydrologyeffects.Temporalvariationsofthegravityﬁeldwereinvestigatedusingdatafrom GRACE satellite mission as well as SLR data. Estimated variations of physical heights indicate the need for kinematic realization of reference surface for heights. Also seasonal variability of the atmospheric and water budgets in Poland was a subject of investigation in terms of total water storage using the GLDAS data. The use of repeatable absolute gravity data for calibration/validation of temporal mass variations derived from satellite gravity missions was discussed. Contribution of gravimetric records to seismic studies was investigated. The bibliography of the related works is given in references.
|Journal series||Geodesy and Cartography, ISSN 2080-6736, e-ISSN 2300-2581, (B 13 pkt)|
|Publication size in sheets||1.6|
|Keywords in English||gravity ﬁeld, gravimetry, global geopotential model, geoid, absolute gravity measurements|
|Score||= 13.0, 05-09-2019, ArticleFromJournal|
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