Optimal Strategy of a GPS Position Time Series Analysis for Post-Glacial Rebound Investigation in Europe
We describe a comprehensive analysis of the 469 European Global Positioning System (GPS) vertical position time series. The assumptions we present should be employed to perform the post-glacial rebound (PGR)-oriented comparison. We prove that the proper treatment of either deterministic or stochasti...
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ftdoajarticles:oai:doaj.org/article:19b5073f670549f28d61645bcecfb685 2023-05-15T18:29:53+02:00 Optimal Strategy of a GPS Position Time Series Analysis for Post-Glacial Rebound Investigation in Europe Janusz Bogusz Anna Klos Krzysztof Pokonieczny 2019-05-01T00:00:00Z https://doi.org/10.3390/rs11101209 https://doaj.org/article/19b5073f670549f28d61645bcecfb685 EN eng MDPI AG https://www.mdpi.com/2072-4292/11/10/1209 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11101209 https://doaj.org/article/19b5073f670549f28d61645bcecfb685 Remote Sensing, Vol 11, Iss 10, p 1209 (2019) global positioning system glacial isostatic adjustment post-glacial rebound precise point positioning vertical land motion time series analysis Science Q article 2019 ftdoajarticles https://doi.org/10.3390/rs11101209 2022-12-31T11:27:41Z We describe a comprehensive analysis of the 469 European Global Positioning System (GPS) vertical position time series. The assumptions we present should be employed to perform the post-glacial rebound (PGR)-oriented comparison. We prove that the proper treatment of either deterministic or stochastic components of the time series is indispensable to obtain reliable vertical velocities along with their uncertainties. The statistical significance of the vertical velocities is examined; due to their small vertical rates, 172 velocities from central and western Europe are found to fall below their uncertainties and excluded from analyses. The GPS vertical velocities reach the maximum values for Scandinavia with the maximal uplift equal to 11.0 mm/yr. Moreover, a comparison between the GPS-derived rates and the present-day motion predicted by the newest Glacial Isostatic Adjustment (GIA) ICE-6G_C (VM5a) model is provided. We prove that these rates agree at a 0.5 mm/yr level on average; the Sweden area with the most significant uplift observed agrees within 0.2 mm/yr. The largest discrepancies between GIA-predicted uplift and the GPS vertical rates are found for Svalbard; the difference is equal to 6.7 mm/yr and arises mainly from the present-day ice melting. The GPS-derived vertical rates estimated for the southern coast of the Baltic Sea are systematically underestimated by the GIA prediction by up to 2 mm/yr. The northern British Isles vertical rates are overestimated by the GIA model by about 0.5 mm/yr. The area of the Netherlands and the coastal area of Belgium are both subsiding faster than it is predicted by the GIA model of around 1 mm/yr. The inland part of Belgium, Luxemburg and the western part of Germany show strong positive velocities when compared to the GIA model. Most of these stations uplift of more than 1 mm/yr. It may be caused by present-day elastic deformation due to terrestrial hydrology, especially for Rhein basin, or non-tidal atmospheric loading, for Belgium and Luxembourg. Article in Journal/Newspaper Svalbard Directory of Open Access Journals: DOAJ Articles Svalbard Remote Sensing 11 10 1209 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
global positioning system glacial isostatic adjustment post-glacial rebound precise point positioning vertical land motion time series analysis Science Q |
spellingShingle |
global positioning system glacial isostatic adjustment post-glacial rebound precise point positioning vertical land motion time series analysis Science Q Janusz Bogusz Anna Klos Krzysztof Pokonieczny Optimal Strategy of a GPS Position Time Series Analysis for Post-Glacial Rebound Investigation in Europe |
topic_facet |
global positioning system glacial isostatic adjustment post-glacial rebound precise point positioning vertical land motion time series analysis Science Q |
description |
We describe a comprehensive analysis of the 469 European Global Positioning System (GPS) vertical position time series. The assumptions we present should be employed to perform the post-glacial rebound (PGR)-oriented comparison. We prove that the proper treatment of either deterministic or stochastic components of the time series is indispensable to obtain reliable vertical velocities along with their uncertainties. The statistical significance of the vertical velocities is examined; due to their small vertical rates, 172 velocities from central and western Europe are found to fall below their uncertainties and excluded from analyses. The GPS vertical velocities reach the maximum values for Scandinavia with the maximal uplift equal to 11.0 mm/yr. Moreover, a comparison between the GPS-derived rates and the present-day motion predicted by the newest Glacial Isostatic Adjustment (GIA) ICE-6G_C (VM5a) model is provided. We prove that these rates agree at a 0.5 mm/yr level on average; the Sweden area with the most significant uplift observed agrees within 0.2 mm/yr. The largest discrepancies between GIA-predicted uplift and the GPS vertical rates are found for Svalbard; the difference is equal to 6.7 mm/yr and arises mainly from the present-day ice melting. The GPS-derived vertical rates estimated for the southern coast of the Baltic Sea are systematically underestimated by the GIA prediction by up to 2 mm/yr. The northern British Isles vertical rates are overestimated by the GIA model by about 0.5 mm/yr. The area of the Netherlands and the coastal area of Belgium are both subsiding faster than it is predicted by the GIA model of around 1 mm/yr. The inland part of Belgium, Luxemburg and the western part of Germany show strong positive velocities when compared to the GIA model. Most of these stations uplift of more than 1 mm/yr. It may be caused by present-day elastic deformation due to terrestrial hydrology, especially for Rhein basin, or non-tidal atmospheric loading, for Belgium and Luxembourg. |
format |
Article in Journal/Newspaper |
author |
Janusz Bogusz Anna Klos Krzysztof Pokonieczny |
author_facet |
Janusz Bogusz Anna Klos Krzysztof Pokonieczny |
author_sort |
Janusz Bogusz |
title |
Optimal Strategy of a GPS Position Time Series Analysis for Post-Glacial Rebound Investigation in Europe |
title_short |
Optimal Strategy of a GPS Position Time Series Analysis for Post-Glacial Rebound Investigation in Europe |
title_full |
Optimal Strategy of a GPS Position Time Series Analysis for Post-Glacial Rebound Investigation in Europe |
title_fullStr |
Optimal Strategy of a GPS Position Time Series Analysis for Post-Glacial Rebound Investigation in Europe |
title_full_unstemmed |
Optimal Strategy of a GPS Position Time Series Analysis for Post-Glacial Rebound Investigation in Europe |
title_sort |
optimal strategy of a gps position time series analysis for post-glacial rebound investigation in europe |
publisher |
MDPI AG |
publishDate |
2019 |
url |
https://doi.org/10.3390/rs11101209 https://doaj.org/article/19b5073f670549f28d61645bcecfb685 |
geographic |
Svalbard |
geographic_facet |
Svalbard |
genre |
Svalbard |
genre_facet |
Svalbard |
op_source |
Remote Sensing, Vol 11, Iss 10, p 1209 (2019) |
op_relation |
https://www.mdpi.com/2072-4292/11/10/1209 https://doaj.org/toc/2072-4292 2072-4292 doi:10.3390/rs11101209 https://doaj.org/article/19b5073f670549f28d61645bcecfb685 |
op_doi |
https://doi.org/10.3390/rs11101209 |
container_title |
Remote Sensing |
container_volume |
11 |
container_issue |
10 |
container_start_page |
1209 |
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1766213308396863488 |