Research on gravity field modelling and gravimetry in Poland in 2015-2018

J. Kryński , P. Dykowski , Tomasz Olszak

Abstract

Activities 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.
Author J. Kryński
J. Kryński,,
-
, P. Dykowski
P. Dykowski,,
-
, Tomasz Olszak (FGC / CGGA)
Tomasz Olszak,,
- Chair of Geodesy and Geodetic Astronomy
Journal seriesGeodesy and Cartography, ISSN 2080-6736, e-ISSN 2300-2581, (B 13 pkt)
Issue year2019
Vol68
No1
Pages31-63
Publication size in sheets1.6
Keywords in Englishgravity field, gravimetry, global geopotential model, geoid, absolute gravity measurements
DOIDOI:10.24425/gac.2019.126096
Internal identifier17/2019
Languageen angielski
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17_2019 Olszak Research on gravity.pdf 4.96 MB
Additional file
Oświadczenie 480.77 KB
Score (nominal)13
ScoreMinisterial score = 13.0, 05-09-2019, ArticleFromJournal
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