Geodetic and Geodynamic Studies at Department of Geodesy and Geodetic Astronomy Wut

Brzeziński, Aleksander; Barlik, M.; Andrasik, Ewa; Izdebski, Waldemar; Kruczyk, M.; Liwosz, Tomasz; Olszak, T. A.; Pachuta, A.; Pieniak, Magdalena; Próchniewicz, D.; Rajner, Marcin; Szpunar, R.; Tercjak, Monika; Walo, J.

doi:10.1515/rgg-2016-0013

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…The Laboratory is equipped with the high quality spring tidal gravimeter LCR ET-26 installed in 2002, and the absolute gravimeter FG5-230 installed in 2005. In the immediate vicinity operate a piezometer (upgraded in 2017 to automatic recording) and a vertical soil moisture probe with five sensors at 6 m, 3 m, 1.50 m, 0.75 m, 0.40 m depths below ground level (Brzezinski et al, 2016).…”

Section: Monitoring Program In Jozefoslawmentioning

confidence: 99%

“…Differences between models result in gravitational effect of 0.3 µGal. With the exception of the globally variable effect, it was possible to capture gravity changes resulting from the global environmental factors, pointing to their interpretation for the significance of the hydro-geological monitoring (Brzezinski et al, 2016).…”

Section: Temporal Variations Of the Gravity Field From Grace Datamentioning

confidence: 99%

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Geodesy and Cartography

Krynski

Dykowski

Olszak

2019

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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 national gravity control in Poland, Sweden, Denmark, the Republic of Ireland and in Northern 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 gravimeter records. Gravity series obtained were analysed considering both local and global hydrology effects. Temporal variations of the gravity field were investigated using data from 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.

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Section: Monitoring Program In Jozefoslawmentioning

confidence: 99%

Section: Temporal Variations Of the Gravity Field From Grace Datamentioning

confidence: 99%

Geodesy and Cartography

Krynski

Dykowski

Olszak

2019

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“…The research related to the local and regional dynamics of the Earth were presented in two review papers (Brzezinski et al, 2016a andBrzezinski et al, 2016b). They described in details engagements of two institutions (namely, Department of Planetary Geodesy, Space Research Centre, Polish Academy of Sciences and Department of Geodesy and Geodetic Astronomy, Warsaw University of Technology).…”

Section: Study On Local and Regional Dynamics Using Permanent Observa...mentioning

confidence: 99%

Geodesy and Cartography

Bogusz

Brzeziński

Nastula

2019

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This paper summarizes the activity of the chosen Polish geodetic research teams in 2015-2018 in the fields of Earth: rotation, dynamics as well as magnetic field. It has been prepared for the needs of the presentation on the 27 th International Union of Geodesy and Geodynamics General Assembly, Montreal, Canada. The part concerning Earth rotation is mostly focused on the use of modelling of diurnal and subdiurnal components of Earth rotation by including low frequency components of polar motion and UT1 in the analysis, study of free oscillations in Earth rotation derived from both space-geodetic observations of polar motion and the time variation of the second degree gravitational field coefficients derived from Satellite Laser Ranging (SLR) and Gravity Recovery and Climate Experiment (GRACE) observations, new methods of monitoring of Earth rotation, as well as studies on applications of the Ring Laser Gyroscope (RLG) for direct and continuous measurements of changes in Earth rotation and investigations of the hydrological excitation of polar motion. Much attention was devoted to the GRACE-derived gravity for explaining the influence of surface mass redistributions on polar motion. Monitoring of the geodynamical phenomena is divided into study on local and regional dynamics using permanent observations, investigation on tidal phenomena, as well as research on hydrological processes and sea level variation parts. Finally, the recent research conducted by Polish scientists on the Earth's magnetic field is described.

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“…It is important to note that the relativistic corrections are also applied to the measured distance in SLR as a free-space signal propagation model (Arnold et al, 2019). The data obtained using the SLR technique are widely used for various tasks in satellite geodesy and geodynamics, such as determining the coordinates of laser stations (Guo et al, 2018;Lejba and Schillak, 2011;Zelensky et al, 2014), in the study of the gravitational field of the Earth (Brzeziński et al, 2016a;, determining the parameters of Earth's orientation (Bloßfeld et al, 2018;Brzeziński et al, 2016b;Gourine, 2012;Shen et al, 2015) and rotation (Bogusz et al, 2015), or studying the phenomenon of tides (Jagoda et al, 2016;Jagoda, 2010, 2015;. The SLR technique also supports GNSS systems (Specht, 2022) and participates in the development of GGOS (Sośnica and Bosy, 2019).…”

Section: Introductionmentioning

confidence: 99%

Satellite Laser Ranging technique as a tool for the determination of the Schwarzschild, de Sitter and Lense-Thirring effects

Matyszewski,

Lejba,

Jagoda

et al. 2023

Reports on Geodesy and Geoinformatics

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Satellite Laser Ranging (SLR) is a modern technique used in various research areas and applications related to geodesy and geodynamics. It is commonly used for tasks such as establishing the International Terrestrial Reference Frame (ITRF), monitoring Earth Orientation Parameters (EOP), determining the geocenter, measuring fundamental physical constants, calibrating microwave tracking techniques, conducting time transfer experiments, and studying gravitational and general relativistic effects. Laser measurements of the LARES and LAGEOS satellites are used to determine the relativistic effects acting on these satellites. The objective of the present research is to analyze the perturbing forces of relativistic origin (Schwarzschild, de Sitter and Lense-Thirring effects) acting on the LARES, LAGEOS-1 and LAGEOS-2 satellites. By using data from fifteen SLR measurement stations, the precise orbits of these satellites were determined over a span of 840 hours using the GEODYN II orbital software package. The calculation process used a set of procedures, models of forces, and constants that are currently recommended by the International Earth Rotation and Reference Systems Service (IERS) and the International Laser Ranging Service (ILRS). Based on the precise orbits of the LARES, LAGEOS-1, and LAGEOS-2 satellites, calculations were made to determine the values of relativistic accelerations acting on these satellites. These values oscillate with a period equal to half of the orbital period for the de Sitter and Lense-Thirring effects, and a quarter of the orbital period for the Schwarzschild effect.

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Geodetic and Geodynamic Studies at Department of Geodesy and Geodetic Astronomy Wut

Cited by 4 publications

References 23 publications

Geodesy and Cartography

Geodesy and Cartography

Geodesy and Cartography

Satellite Laser Ranging technique as a tool for the determination of the Schwarzschild, de Sitter and Lense-Thirring effects

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