Geodetic monitoring of subrosion-induced subsidence processes in urban areas

Concept and status report

authored by: Tobias Kersten, Martin Kobe, Gerald Gabriel, Ludger Timmen, Steffen Schön, Detlef Vogel
Abstract: The research project SIMULTAN applies an advanced combination of geophysical, geodetic, and modelling techniques to gain a better understanding of the evolution and characteristics of sinkholes. Sinkholes are inherently related to surface deformation and, thus, of increasing societal relevance, especially in dense populated urban areas. One work package of SIMULTAN investigates an integrated approach to monitor sinkhole-related mass translations and surface deformations induced by salt dissolution. Datasets from identical and adjacent points are used for a consistent combination of geodetic and geophysical techniques. Monitoring networks are established in Hamburg and Bad Frankenhausen (Thuringia). Levelling surveys indicate subsidence rates of about 4-5 mm per year in the main subsidence areas of Bad Frankenhausen with a local maximum of 10 mm per year around the leaning church tower. Here, the concept of combining geodetic and gravimetric techniques to monitor and characterise geological processes on and below the Earth's surface is exemplary discussed for the focus area Bad Frankenhausen. For the different methods (levelling, GNSS, relative/absolute gravimetry) stable network results at identical points are obtained by the first campaigns, i.e., the results are generally in agreement.
Organisation(s): Institute of Geodesy
Leibniz Research Centre FZ:GEO
External Organisation(s): Leibniz Institute for Applied Geophysics (LIAG)
Type: Article
Journal: Journal of Applied Geodesy
Volume: 11
Pages: 21-29
No. of pages: 9
ISSN: 1862-9016
Publication date: 13.02.2017
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Modelling and Simulation, Engineering (miscellaneous), Earth and Planetary Sciences (miscellaneous)
Electronic version(s): https://doi.org/10.1515/jag-2016-0029 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{6be024e61fb04866a0d738e0de576813,
title = "Geodetic monitoring of subrosion-induced subsidence processes in urban areas: Concept and status report",
abstract = "The research project SIMULTAN applies an advanced combination of geophysical, geodetic, and modelling techniques to gain a better understanding of the evolution and characteristics of sinkholes. Sinkholes are inherently related to surface deformation and, thus, of increasing societal relevance, especially in dense populated urban areas. One work package of SIMULTAN investigates an integrated approach to monitor sinkhole-related mass translations and surface deformations induced by salt dissolution. Datasets from identical and adjacent points are used for a consistent combination of geodetic and geophysical techniques. Monitoring networks are established in Hamburg and Bad Frankenhausen (Thuringia). Levelling surveys indicate subsidence rates of about 4-5 mm per year in the main subsidence areas of Bad Frankenhausen with a local maximum of 10 mm per year around the leaning church tower. Here, the concept of combining geodetic and gravimetric techniques to monitor and characterise geological processes on and below the Earth's surface is exemplary discussed for the focus area Bad Frankenhausen. For the different methods (levelling, GNSS, relative/absolute gravimetry) stable network results at identical points are obtained by the first campaigns, i.e., the results are generally in agreement.",
keywords = "Absolute and Relative Gravimetry, Co-located Geo-Monitoring, Earth's Surface Deformation, GNSS, Levelling, Sinkhole",
author = "Tobias Kersten and Martin Kobe and Gerald Gabriel and Ludger Timmen and Steffen Sch{\"o}n and Detlef Vogel",
year = "2017",
month = feb,
day = "13",
doi = "10.1515/jag-2016-0029",
language = "English",
volume = "11",
pages = "21--29",
journal = "Journal of Applied Geodesy",
issn = "1862-9016",
publisher = "Walter de Gruyter GmbH",
number = "1",
}