Deformation Monitoring at European Scale: The Copernicus Ground Motion Service

Abstract

Abstract. The Advanced Differential Interferometric SAR (A-DInSAR) technique is a class of powerful techniques to monitor ground motion. In the last two decades, the A-DInSAR technique has undergone an important development in terms of processing algorithms and the capability to monitor wide areas. This has been accompanied by an important increase of the Synthetic Aperture Radar (SAR) data acquisition capability by spaceborne sensors. An important step forward was the launch of the Copernicus Sentinel-1 constellation. The development of A-DInSAR based ground deformation services is now technically feasible. This paper describes some of the most important features of A-DInSAR. Then, it describes the European Ground Motion Service (EGMS), part of the Copernicus Land Monitoring Service, which represents a unique initiative for performing ground deformation monitoring on a European scale.

Instrumental Monitoring of a Slow-Moving Landslide in Piedmont (Northwest Italy) for the Definition of Rainfall Thresholds

“…After this period, a calibration of the new measurements starting point was necessary in order to assure the reliability of the acquired data. For this purpose, we compared the inclinometric data with the interferometric European Ground Motion Service (EGMS) monitoring network [ 32 , 33 , 34 ], which provides discrete geospatial layers containing purely vertical [ 41 ] and purely east–west [ 42 ] displacement data of the ground for a network of target points spread over the entirety of Europe. Two time series are nowadays available, with a sampling interval of six days and covering the periods between 2015–2021 and 2018–2022, respectively.…”

“…Thus, we compared the MUMS time-displacement data series and the derived time-velocity and time-acceleration data series with the rainfall trends over the 2017–2023 period, to validate the proposed thresholds. Lastly, the inclinometric data provided by the MUMS sensor was compared with available Interferometric Synthetic Aperture Radar (InSAR) data provided by [ 32 , 33 , 34 ]. This was performed in order to enlarge the dataset of ground motion data, also introducing a different source of data not related to the in-continuum acquisition of the MUMS inclinometer.…”

A new approach for drought index adjustment to clay-shrinkage-induced subsidence over France: advantages of the interactive leaf area index

“…In particular, satellite-borne interferometric synthetic aperture radar (InSAR) data can be used to infer vertical motion after appropriate processing, as done by Burnol et al (2021). For example, the European Ground Mo-tion Service (EGMS; Crosetto et al, 2021) has provided vertical displacements over Europe with high spatial and temporal resolution, based on the Copernicus Sentinel-1 satellites, since 2018. The main advantage of this technique is its large spatial coverage.…”

Late Quaternary Relative Sea-Level Changes and Vertical GNSS Motions in the Gulf of Corinth: The Asymmetric Localization of Deformation Inside an Active Half-Graben

“…The mean rates of vertical motion are comparable to GNSS that is from −4 mm/yr up to +4 mm/yr. The European Ground Motion Service (EGMS) product ( [71,72]; 100 m grid), which spans the period 2015-2021, also shows a general subsiding pa ern of the north coast of the gulf (Figure 3). The greatest rates of subsidence are observed in the western part of the northern coastline near Trizonia islands (Figure 1; see also GNSS station TRIZ in Table 1).…”