Estimation of crustal vertical movements due to atmospheric loading effects by GPS observations

Rodrigues, Erica Patias

doi:10.1590/s0102-261x2007000100004

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Correcting GNSS time series for the influence of APL is still under investigation [Tregoning, & van Dam, 2005;Rodrigues, 2007;Tregoning, & Watson, 2009;Dach, et al, 2011;Yue, et al, 2020;Kalinnikov, et al, 2020]. In order to improve the accuracy of GNSS solutions, Tregoning & Watson [2009] recommend taking into account both tidal and non-tidal atmospheric loads, as well as including these models in the current software packages which have already been implemented.…”

Section: Loading Caused By Atmospheric Pressurementioning

confidence: 99%

“…In order to improve the accuracy of GNSS solutions, Tregoning & Watson [2009] recommend taking into account both tidal and non-tidal atmospheric loads, as well as including these models in the current software packages which have already been implemented. Rodrigues [2007] estimates the effect of vertical displacements of the Earth's crust from the atmospheric loading effects on 45 GNSS stations in Europe and Asia. The researcher also finds a high correlation between the vertical motions of some continental GNSS stations and atmospheric loading.…”

Section: Loading Caused By Atmospheric Pressurementioning

confidence: 99%

See 1 more Smart Citation

Geodynamics

Tretyak¹,

Brusak²,

Bubniak³

et al. 2021

JGD

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The paper analyzes the vertical displacements of the GNSS sites of civil engineering structures caused by non-tidal atmospheric loading (NTAL). The object of the study is the Dnister Hydroelectric Power Plant №1 (HPP-1) and its GNSS monitoring network. The initial data are the RINEX-files of 14 GNSS stations of the Dnister HPP-1 and 8 permanent GNSS stations within a radius of 100 km, the NTAL model downloaded from the repository of German Research Centre for Geosciences GFZ for 2019-2021, and materials on the geological structure of the object. Methods include comparison and analysis of the altitude component of GNSS time series with model values of NTAL as well as interpretation of the geodynamic vertical displacements, taking into account the analysis of the geological structure. As a result, it was found that the sites of the GNSS network of the Dnister HPP-1 undergo less vertical displacements than the permanent GNSS stations within a radius of 100 km. This corresponds to the difference in thickness and density of the rocks under the GNSS sites and stations, so they undergo different elastic deformations by the same NTAL. In addition, the research detected different dynamics of vertical displacements of GNSS sites on the dam and on the river banks. It leads to cracks and deformations of concrete structures in the dam-bank contact zones. During the anomalous impact of NTAL, the altitude of even nearby sites can change if the geological structure beneath them is different. The work shows that for civil engineering structures it is necessary to apply special models to take into account NTAL deformations for high-precision engineering and geodetic measurements.

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