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Überwachung der Möhnestaumauer durch satellitengestützte Persistent Scatterer Interferometrie

Authors: Jänichen, Jannik; Dubois, Clemence; Baade, Jussi; Schmullius, Christiane; Bettzieche, Volker; Last, Katja;

Überwachung der Möhnestaumauer durch satellitengestützte Persistent Scatterer Interferometrie

Abstract

Im Bereich der Infrastrukturüberwachung gewinnen Methoden der Radarfernerkundung mittels Satellitendaten an Bedeutung. Insbesondere die Technik der Persistent Scatterer Interferometrie (PSI) hat sich in diversen Studien als kostengünstige und genaue Ergänzung zu traditionellen Vermessungstechniken etabliert. Sie berechnet für relativ stabile Objekte auf der Erdoberfläche über einen zu bestimmenden Zeitraum Deformationen. Hierfür bieten sich besonders die seit 2014 frei verfügbaren Sentinel-1 Satellitendaten des europäischen Copernicus-Programms an. Da Staumauern in der bisherigen Forschung kein wesentlicher Bestandteil waren, untersucht diese Studie die Anwendbarkeit der PSI-Technik am Beispiel der Möhnestaumauer. Zudem werden Aussagen über die Genauigkeit durch Vergleiche mit geodätischen in-situ Messungen getroffen. Durch die Anwendung der PSI-Technik konnten Deformationen berechnet werden, die im Vergleich mit den in-situ Daten hohe Genauigkeiten aufweisen, wodurch gezeigt wird, dass die Technik an Staumauern anwendbar ist.

In the field of infrastructure monitoring, methods of radar remote sensing using satellite data are gaining importance. In particular, the technique of persistent scatterer interferometry (PSI) has established itself in various studies as a cost-effective and accurate supplement to traditional surveying techniques. It calculates deformations for rather stable objects on the Earth's surface over a choosen period of time. The Sentinel-1 satellite data of the European Copernicus program, which have been freely available since 2014, are particularly suitable for this purpose. Since gravity dams have not been an essential part of previous research in this field, this study examines the applicability of the PSI technique using the Möhne dam as an example. Furthermore, statements about the accuracy are made by comparison with geodetic in-situ measurements. By applying the PSI technique, deformations that show high accuracies compared to the in-situ data could be calculated, demonstrating that the technique is applicable to dam walls.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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