Gravity field modelling and gravimetry

Krynski, Jan

doi:10.1515/geocart-2015-0012

Cited by 4 publications

(3 citation statements)

References 14 publications

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“…Research activities of the Polish research groups in the years 2019-2022 in gravimetry and gravity field modelling are a consequent continuation/extension of those from the period of 2015-2018 (Krynski et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Research on gravity field modelling and gravimetry in Poland in 2019–2022

2023

Advances in Geodesy and Geoinformation

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The article presents the reviewed and summarised research activities of the Polish research groups on gravimetry and gravity field modelling in the period of 2019-2022. It contains the results of absolute gravity surveys for the maintenance of the international gravity reference level in Poland and Europe, and for geodynamic research with an emphasis on metrological aspects. It also contains relative gravimetry issues as well as the results of marine gravity surveys in the southern Baltic Sea. Non-tidal gravity changes were extensively investigated. Long-term gravity variations were monitored at the Borowa Gora Geodetic-Geophysical Observatory and in a few other locations in Poland. The contribution of gravimetric records to seismic studies was investigated. Temporal variations of the gravity field from GRACE (Gravity Recovery and Climate Experiment) and GRACE-FO (GRACE Follow-On) data, in particular, deformations of the Earth's surface as well as temporal variations of heights, total water storage and groundwater storage were investigated. Moreover, GRACE-based products and the performance of monthly Global Geopotential Models (GGMs) were a subject of research. GGMs developed in last years were evaluated. The research on developing new approaches in geoid modelling and their validation was conducted. New regional and local geoid models were determined for Poland and Ethiopia. The use of different techniques for estimating the absolute sea level at sites of the selected network in the Baltic Sea was investigated.

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Section: Introductionmentioning

confidence: 99%

Research on gravity field modelling and gravimetry in Poland in 2019–2022

2023

Advances in Geodesy and Geoinformation

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“…Bearing in mind this type of disorder, and taking into account the data from longtime registrations the mount July was selected for measurements. According to [18], the changes related to hydrology in this month should have a negligible impact on the sensor. Such classical processing is briefly presented for which gravity variations due to hydrology can be found in the literature [19].…”

Section: Introductionmentioning

confidence: 99%

MicroGal Gravity Measurements with MGS-6 Micro-g LaCoste Gravimeter

Przyborski

Pyrchla

et al. 2019

Sensors

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The article discusses the registration of micro-gravity changes with the MGS-6 Micro-g LaCoste gravity sensor during static measurements. An experiment was carried out to determine how small changes in gravity can be registered using the MGS-6 system sensor. The tides of the Earth’s crust were chosen as the source of disturbance of the field with small amplitude and long-term changes. The tested sensor was placed in a geophysical observatory on a specially designed tripod. Simultaneously on the nearby concrete pillar, the registration of changes in gravity was carried out using the superconducting iGrav gravimeter. The high temporal stability of the superconducting gravimeters and the low noise combined with leading sensitivity of its reading allow it to be considered as a reliable reference source for MGS-6. The article discusses the impact of non-leveling changes of the MGS-6 gravimetry on the reading and determines the size of its non-linear drift. The obtained differences in indications between devices did not exceed 50 μ Gal for 68% of data. The measurements also showed excellent time stability of the MGS-6 measurement system. The data collected during the experiment allowed determining the level of accuracy that can be sought during real measurements using the MGS-6 system on research vessels. They also give an overview of the dynamics of the drift phenomenon of the analyzed research system.

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“…For example, national gravity networks of Poland and Finland are completely modernised and now comprise a smaller number of in-door stations, measured by a high precision FG5 absolute gravimeter, and a larger number of field stations measured by a field absolute gravimeter A10 (Makinen, Sękowski and Kryński, 2010;Bosy and Krynski, 2015). Field absolute gravimeters are also utilised in other European countries: Germany (Wziontek, Falk and Wilmes, 2015), France (Duquenne, Duquenne and Gattacceca, 2005), Sweden, Norway, Denmark (Krynski, 2015;Kempe et al, 2017), etc. In addition, there is a regional and global trend of integration of gravity networks with positioning and vertical networks, which is also followed on national scales.…”

Section: Introductionmentioning

confidence: 99%

New adjustment of the Croatian first order gravity network

Repanić¹

2017

geod. vestn.

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Gravity field modelling and gravimetry

Cited by 4 publications

References 14 publications

Research on gravity field modelling and gravimetry in Poland in 2019–2022

Research on gravity field modelling and gravimetry in Poland in 2019–2022

MicroGal Gravity Measurements with MGS-6 Micro-g LaCoste Gravimeter

New adjustment of the Croatian first order gravity network

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