Dataset
Data Publication
Particle image velocimetry data from an analog seismo-tectonic model addressing the interaction between neighbor asperities
Corbi, Fabio | Bedford, Jonathan | Poli, Piero | Funiciello, Francesca | Deng, Zhiguo
GFZ Data Services
(2021)
Descriptions
This dataset includes the results of Particle Image Velocimetry (PIV) of one experiment on subduction megathrust earthquakes (with interacting asperities) performed at the Laboratory of Experimental Tectonics (LET) Univ. Roma Tre in the framework of AspSync, the Marie Curie project (grant agreement 658034; https://aspsync.wordpress.com). Detailed descriptions of the experiments and monitoring techniques can be found in Corbi et al. (2017). This data set is from one experiment characterized by the presence of a 7 cm wide barrier separating two asperities with equal size, geometry and friction. Here we provide PIV data relative to a 16.3 min long interval during which the experiment produces 138 analog earthquakes with an average recurrence time of 7 s. The PIV analysis yields quantitative information about the velocity field characterizing two consecutive frames, measured in this case at the model surface. For a detailed description of the experimental procedure, set-up and materials used, please refer to the article of Corbi et al. (2017) paragraph 2. This data set has been used for: a) studying velocity variations (Fig. 2 in Corbi et al., 2021) and rupture patterns (Fig. 3a, b in Corbi et al., 2021) occurring during the velocity peak of one of the two asperities (aka trigger).
The evolution of the analog model was monitored with a digital top-view camera (PIKE-ALLIED with resolution 1600 × 1200 pixels), capturing one frame every 0.133 s. Digital images were then analyzed with MatPIV (Sveen, 2004), which is an open-source software for PIV running under the MATLAB package. This software uses a cross-correlation technique that allows calculating horizontal components (i.e., on the image plane) of surface displacement with about one tenth of a pixel of accuracy. We used the multi-pass protocol with window size of 128 x 128 pixels and 64 x 64 pixels and 50% overlap. Other information e.g., surface displacement can be easily computed from the velocity field knowing the time between frames.
Keywords
Originally assigned keywords
analogue models of geologic processes
subduction megathrust earthquakes
asperities
multi-scale laboratories
EPOS
Analog modelling results
Software tools
deformation
geologic process
tectonic process
subduction
Digital Image Correlation (DIC) / Particle Image Velocimetry (PIV) > MatPIV
Earthquake simulator
Wedge simulator
Gelatine
plate margin setting
subduction zones
thrust fault
Videocamera
EARTH SCIENCE > SOLID EARTH
EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES
EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > EARTHQUAKE OCCURRENCES
geological process > seismic activity
geological process > seismic activity > earthquake
science > natural science > earth science
science > natural science > earth science > geophysics
Corresponding MSL vocabulary keywords
subducting plate interface
subduction
fault simulator
wedge simulator
wedge simulator
gelatin
tectonic plate boundary
thrust fault
video camera
MSL enriched keywords
tectonic plate boundary
convergent tectonic plate boundary
subduction
subducting plate interface
Apparatus
analogue modelling
deformation experiments
fault simulator
wedge simulator
geomorphic experiments
wedge simulator
analogue modelling material
elastic modelling material
natural elastic material
gelatin
tectonic deformation structure
tectonic fault
thrust fault
Ancillary equipment
model surface monitoring (2D)
camera
video camera
Software
digital image correlation (DIC)
particle image velocimetry (PIV)
Measured property
friction - controlled slip rate
friction coefficient
Inferred deformation behavior
deformation behaviour
frictional deformation
Measured property
friction - controlled slip rate
friction coefficient
PIV - MatPIV
Metadata
MSL enriched sub domains
analogue modelling of geologic processes
rock and melt physics
Resource Type
Source
Source publisher
| GFZ Data Services |
DOI
| 10.5880/fidgeo.2021.038 |
Creators
| Corbi, Fabio |
| Personal |
| Istituto di Geologia Ambientale e Geoingegneria – CNR, Rome, Italy |
| Bedford, Jonathan |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Poli, Piero |
| Personal |
| Université Grenoble Alpes, CNRS, ISTerre, Grenoble, France |
| Funiciello, Francesca |
| Personal |
| Universitá degli studi "Roma TRE", Rome, Italy |
| Deng, Zhiguo |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
Contributors
| Corbi, Fabio |
| Personal |
| Istituto di Geologia Ambientale e Geoingegneria – CNR, Rome, Italy |
| Corbi, Fabio |
| Personal |
| Istituto di Geologia Ambientale e Geoingegneria – CNR, Rome, Italy |
| Corbi, Fabio |
| Personal |
| Istituto di Geologia Ambientale e Geoingegneria – CNR, Rome, Italy |
| Corbi, Fabio |
| Personal |
| Istituto di Geologia Ambientale e Geoingegneria – CNR, Rome, Italy |
| Corbi, Fabio |
| Personal |
| Istituto di Geologia Ambientale e Geoingegneria – CNR, Rome, Italy |
| Bedford, Jonathan |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Bedford, Jonathan |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Poli, Piero |
| Personal |
| Université Grenoble Alpes, CNRS, ISTerre, Grenoble, France |
| Poli, Piero |
| Personal |
| Université Grenoble Alpes, CNRS, ISTerre, Grenoble, France |
| Funiciello, Francesca |
| Personal |
| Universitá degli studi "Roma TRE", Rome, Italy |
| Funiciello, Francesca |
| Personal |
| Universitá degli studi "Roma TRE", Rome, Italy |
| Deng, Zhiguo |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Deng, Zhiguo |
| Personal |
| GFZ German Research Centre for Geosciences, Potsdam, Germany |
| Personal |
| Universitá degli studi "Roma TRE", Rome, Italy |
| Corbi, Fabio |
| Personal |
| Istituto di Geologia Ambientale e Geoingegneria – CNR, Rome, Italy |
Citation
Corbi, F., Bedford, J., Poli, P., Funiciello, F., & Deng, Z. (2021). Particle image velocimetry data from an analog seismo-tectonic model addressing the interaction between neighbor asperities [Data set]. GFZ Data Services. https://doi.org/10.5880/FIDGEO.2021.038
References
Dates
| Valid | 2017 |
| Created | 2017 |
| Issued | 2021 |
Language
- no language entry found -
Funding References
| Funder Name | European Commission |
| Funder Identifier | https://doi.org/10.13039/501100000780 |
| Award Number | 658034 |
| Award Title | AspSync |
Rights
| Name | Creative Commons Attribution 4.0 International |
| URI | https://creativecommons.org/licenses/by/4.0/legalcode |
| Identifier | cc-by-4.0 |
| Identifier Scheme | SPDX |
| Scheme URI | https://spdx.org/licenses/ |
Locations
- no geo-locations found -