Articles | Volume 13, issue 10
https://doi.org/10.5194/se-13-1541-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/se-13-1541-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Common-mode signals and vertical velocities in the greater Alpine area from GNSS data
Francesco Pintori
CORRESPONDING AUTHOR
Osservatorio
Nazionale Terremoti, Istituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, 00143, Italy
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Bologna, 40128,
Italy
Enrico Serpelloni
Osservatorio
Nazionale Terremoti, Istituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, 00143, Italy
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Bologna, 40128,
Italy
Adriano Gualandi
Osservatorio
Nazionale Terremoti, Istituto Nazionale di Geofisica e Vulcanologia (INGV), Rome, 00143, Italy
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Lauro Chiaraluce, Richard Bennett, David Mencin, Wade Johnson, Massimiliano Rinaldo Barchi, Marco Bohnhoff, Paola Baccheschi, Antonio Caracausi, Carlo Calamita, Adriano Cavaliere, Adriano Gualandi, Eugenio Mandler, Maria Teresa Mariucci, Leonardo Martelli, Simone Marzorati, Paola Montone, Debora Pantaleo, Stefano Pucci, Enrico Serpelloni, Mariano Supino, Salvatore Stramondo, Catherine Hanagan, Liz Van Boskirk, Mike Gottlieb, Glen Mattioli, Marco Urbani, Francesco Mirabella, Assel Akimbekova, Simona Pierdominici, Thomas Wiersberg, Chris Marone, Luca Palmieri, and Luca Schenato
Sci. Dril., 33, 173–190, https://doi.org/10.5194/sd-33-173-2024, https://doi.org/10.5194/sd-33-173-2024, 2024
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We built six observatory stations in central Italy to monitor a fault potentially capable of generating a strong earthquake. Each site has 80–160 m deep wells equipped with strainmeters and seismometers. At the surface, we placed GNSS antennas and seismic and meteorological sensors. All data, which are open access for the scientific community, will help us to better understand the complex physical and chemical processes that lead to the generation of the full range of slow and fast earthquakes.
Letizia Anderlini, Enrico Serpelloni, Cristiano Tolomei, Paolo Marco De Martini, Giuseppe Pezzo, Adriano Gualandi, and Giorgio Spada
Solid Earth, 11, 1681–1698, https://doi.org/10.5194/se-11-1681-2020, https://doi.org/10.5194/se-11-1681-2020, 2020
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The Venetian Southern Alps (Italy) are located in a slowly deforming plate-boundary region where strong earthquakes occurred in the past even if seismological and geomorphological evidence is not conclusive about the specific thrust faults involved. In this study, we integrate and model different geodetic datasets of ground velocity to constrain the seismogenic potential of the studied faults, giving an example of the importance of using vertical geodetic data for seismic hazard estimates.
Aladino Govoni, Luciana Bonatto, Marco Capello, Adriano Cavaliere, Claudio Chiarabba, Ezio D'Alema, Stefania Danesi, Sara Lovati, Lucia Margheriti, Marco Massa, Salvatore Mazza, Francesco Mazzarini, Stephen Monna, Milena Moretti, Anna Nardi, Davide Piccinini, Claudia Piromallo, Silvia Pondrelli, Simone Salimbeni, Enrico Serpelloni, Stefano Solarino, Massimiliano Vallocchia, Marco Santulin, and the AlpArray Working Group
Adv. Geosci., 43, 39–52, https://doi.org/10.5194/adgeo-43-39-2017, https://doi.org/10.5194/adgeo-43-39-2017, 2017
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We describe here the contribution of Istituto Nazionale di Geofisica e Vulcanolgia (INGV) to the AlpArray Seismic Network (AASN) in the framework of the AlpArray project (http://www.alparray.ethz.ch), a large European collaborative research initiative.
The aim of AlpArray is carrying out cutting edge research to advance our understanding of the deep structure, geodynamics, tectonics and seismic hazard of the greater Alpine area (Alps-Apennines-Carpathians-Dinarides orogenic system).
Related subject area
Subject area: The evolving Earth surface | Editorial team: Geodesy, gravity, and geomagnetism | Discipline: Geodesy
Gravity inversion method using L0-norm constraint with auto-adaptive regularization and combined stopping criteria
Monitoring surface deformation of deep salt mining in Vauvert (France), combining InSAR and leveling data for multi-source inversion
Estimating ocean tide loading displacements with GPS and GLONASS
The imprints of contemporary mass redistribution on local sea level and vertical land motion observations
Time-lapse gravity and levelling surveys reveal mass loss and ongoing subsidence in the urban subrosion-prone area of Bad Frankenhausen, Germany
Precision of continuous GPS velocities from statistical analysis of synthetic time series
Impact of terrestrial reference frame realizations on altimetry satellite orbit quality and global and regional sea level trends: a switch from ITRF2008 to ITRF2014
The glacial isostatic adjustment signal at present day in northern Europe and the British Isles estimated from geodetic observations and geophysical models
Mesay Geletu Gebre and Elias Lewi
Solid Earth, 14, 101–117, https://doi.org/10.5194/se-14-101-2023, https://doi.org/10.5194/se-14-101-2023, 2023
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In this work, a gravity inversion method that can produce compact and sharp images is presented. An auto-adaptive regularization parameter estimation method, improved error-weighting function and combined stopping rule are the contributions incorporated into the presented inversion method. The method is tested by synthetic and real gravity data, and the obtained results confirmed the potential practicality of the method.
Séverine Liora Furst, Samuel Doucet, Philippe Vernant, Cédric Champollion, and Jean-Louis Carme
Solid Earth, 12, 15–34, https://doi.org/10.5194/se-12-15-2021, https://doi.org/10.5194/se-12-15-2021, 2021
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We develop a two-step methodology combining multiple surface deformation measurements above a salt extraction site (Vauvert, France) in order to overcome the difference in resolution and accuracy. Using this 3-D velocity field, we develop a model to determine the kinematics of the salt layer. The model shows a collapse of the salt layer beneath the exploitation. It also identifies a salt flow from the deepest and most external part of the salt layer towards the center of the exploitation.
Bogdan Matviichuk, Matt King, and Christopher Watson
Solid Earth, 11, 1849–1863, https://doi.org/10.5194/se-11-1849-2020, https://doi.org/10.5194/se-11-1849-2020, 2020
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The Earth deforms as the weight of ocean mass changes with the tides. GPS has been used to estimate displacements of the Earth at tidal periods and then used to understand the properties of the Earth or to test models of ocean tides. However, there are important inaccuracies in these GPS measurements at major tidal periods. We find that combining GPS and GLONASS gives more accurate results for constituents other than K2 and K1; for these, GLONASS or ambiguity resolved GPS are preferred.
Thomas Frederikse, Felix W. Landerer, and Lambert Caron
Solid Earth, 10, 1971–1987, https://doi.org/10.5194/se-10-1971-2019, https://doi.org/10.5194/se-10-1971-2019, 2019
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Due to ice sheets and glaciers losing mass, and because continents get wetter and drier, a lot of water is redistributed over the Earth's surface. The Earth is not completely rigid but deforms under these changes in the load on top. This deformation affects sea-level observations. With the GRACE satellite mission, we can measure this redistribution of water, and we compute the resulting deformation. We use this computed deformation to improve the accuracy of sea-level observations.
Martin Kobe, Gerald Gabriel, Adelheid Weise, and Detlef Vogel
Solid Earth, 10, 599–619, https://doi.org/10.5194/se-10-599-2019, https://doi.org/10.5194/se-10-599-2019, 2019
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Subrosion, i.e. the underground leaching of soluble rocks, causes disastrous sinkhole events worldwide. We investigate the accompanying mass transfer using quarter-yearly time-lapse gravity campaigns over 4 years in the town of Bad Frankenhausen, Germany. After correcting for seasonal soil water content, we find evidence of underground mass loss and attempt to quantify its amount. This is the first study of its kind to prove the feasibility of this approach in an urban area.
Christine Masson, Stephane Mazzotti, and Philippe Vernant
Solid Earth, 10, 329–342, https://doi.org/10.5194/se-10-329-2019, https://doi.org/10.5194/se-10-329-2019, 2019
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We use statistical analyses of synthetic position time series to estimate the potential precision of GPS velocities. Regression tree analyses show that the main factors controlling the velocity precision are the duration of the series, the presence of offsets, and the noise. Our analysis allows us to propose guidelines which can be applied to actual GPS data that constrain the velocity accuracies.
Sergei Rudenko, Saskia Esselborn, Tilo Schöne, and Denise Dettmering
Solid Earth, 10, 293–305, https://doi.org/10.5194/se-10-293-2019, https://doi.org/10.5194/se-10-293-2019, 2019
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A terrestrial reference frame (TRF) realization is a basis for precise orbit determination of Earth-orbiting artificial satellites and sea level studies. We investigate the impact of a switch from an older TRF realization (ITRF2008) to a new one (ITRF2014) on the quality of orbits of three altimetry satellites (TOPEX/Poseidon, Jason-1, and Jason-2) for 1992–2015, but especially from 2009 onwards, and on altimetry products computed using the satellite orbits derived using ITRF2014.
Karen M. Simon, Riccardo E. M. Riva, Marcel Kleinherenbrink, and Thomas Frederikse
Solid Earth, 9, 777–795, https://doi.org/10.5194/se-9-777-2018, https://doi.org/10.5194/se-9-777-2018, 2018
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This study constrains the post-glacial rebound signal in Scandinavia and northern Europe via the combined inversion of prior forward model information with GPS-measured vertical land motion data and GRACE gravity data. The best-fit model for vertical motion rates has a χ2 value of ~ 1 and a maximum uncertainty of 0.3–0.4 mm yr−1. An advantage of inverse models relative to forward models is their ability to estimate formal uncertainties associated with the post-glacial rebound process.
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Short summary
We study time-varying vertical deformation signals in the European
Alps by analyzing GNSS position time series. We associate the deformation
signals to geophysical forcing processes, finding that atmospheric and
hydrological loading are by far the most important cause of seasonal
displacements. Recognizing and filtering out non-tectonic signals allows us
to improve the accuracy and precision of the vertical velocities.
We study time-varying vertical deformation signals in the European
Alps by analyzing GNSS...