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GEO-4D SIGNED

Geodetic data assimilation: Forecasting Deformation with InSAR

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EC-Contrib. €

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Partnership

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 GEO-4D project word cloud

Explore the words cloud of the GEO-4D project. It provides you a very rough idea of what is the project "GEO-4D" about.

continuous    game    compare    provides    designed    releasing    deforming    controls    turkey    instrumented    longitudinal    launch    intensive    day    detect    regions    tool    temporal    re    north    toward    types    generate    learning    physical    paradigm    outputs    answering    characterization    world    shift    shedding    first    question    light    wealth    anatolian    forecasting    aseismic    gps    time    network    recent    rupture    prone    deformation    seismic    stress    groups    aseismically    meet    actively    expand    events    changer    data    detection    energy    opportunity    geodetic    naf    series    release    slip    radar    gently    space    spatial    active    global    more    san    validation    systematic    algorithm    deploy    faults    mapping    return    dynamic    scales    motion    mechanism    assimilation    obscured    earthquakes    fault    ground    suggest    view    variety    andreas    taiwan    period    classified    continental    usa    valley    locked    creeping    fundamental    sentinel    tectonic    classic    modes    size    catastrophic    phenomena    constellation    machine   

Project "GEO-4D" data sheet

The following table provides information about the project.

Coordinator
ECOLE NORMALE SUPERIEURE 

Organization address
address: 45, RUE D'ULM
city: PARIS CEDEX 05
postcode: 75230
website: http://www.ens.fr

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Total cost 1˙499˙125 €
 EC max contribution 1˙499˙125 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-STG
 Funding Scheme ERC-STG
 Starting year 2018
 Duration (year-month-day) from 2018-01-01   to  2022-12-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    ECOLE NORMALE SUPERIEURE FR (PARIS CEDEX 05) coordinator 1˙499˙125.00

Map

 Project objective

Recent space-based geodetic measurements of ground deformation suggest a paradigm shift is required in our understanding of the behaviour of active tectonic faults. The classic view of faults classified in two groups – the locked faults prone to generate earthquakes and the creeping faults releasing stress through continuous aseismic slip – is now obscured by more and more studies shedding light on a wide variety of seismic and aseismic slip events of variable duration and size. What physical mechanism controls whether a tectonic fault will generate a dynamic, catastrophic rupture or gently release energy aseismically? Answering such a fundamental question requires a tool for systematic and global detection of all modes of slip along active faults. The launch of the Sentinel 1 constellation is a game changer as it provides, from now on, systematic Radar mapping of all actively deforming regions in the world with a 6-day return period. Such wealth of data represents an opportunity as well as a challenge we need to meet today. In order to expand the detection and characterization of all slip events to a global scale, I will develop a tool based on machine learning procedures merging the detection capabilities of all data types, including Sentinel 1 data, to build time series of ground motion. The first step is the development of a geodetic data assimilation method with forecasting ability toward the first re-analysis of active fault motion and tectonic phenomena. The second step is a validation of the method on three faults, including the well-instrumented San Andreas (USA) and Longitudinal Valley faults (Taiwan) and the North Anatolian Fault (NAF, Turkey). I will deploy a specifically designed GPS network along the NAF to compare with outputs of our method. The third step is the intensive use of the algorithm on a global scale to detect slip events of all temporal and spatial scales for a better understanding of the slip behaviour along all active continental faults.

 Publications

year authors and title journal last update
List of publications.
2018 Bryan Riel, Mark Simons, Daniel Ponti, Piyush Agram, Romain Jolivet
Quantifying Ground Deformation in the Los Angeles and Santa Ana Coastal Basins Due to Groundwater Withdrawal
published pages: 3557-3582, ISSN: 0043-1397, DOI: 10.1029/2017wr021978
Water Resources Research 54/5 2019-08-29
2019 B. Gombert, Z. Duputel, E. Shabani, L. Rivera, R. Jolivet, J. Hollingsworth
Impulsive Source of the 2017 M W =7.3 Ezgeleh, Iran, Earthquake
published pages: , ISSN: 0094-8276, DOI: 10.1029/2018gl081794
Geophysical Research Letters 2019-08-29
2018 R. Jolivet, M. Simons
A Multipixel Time Series Analysis Method Accounting for Ground Motion, Atmospheric Noise, and Orbital Errors
published pages: 1814-1824, ISSN: 0094-8276, DOI: 10.1002/2017gl076533
Geophysical Research Letters 45/4 2019-08-29
2018 B. Gardonio, R. Jolivet, E. Calais, H. Leclère
The April 2017 M w 6.5 Botswana Earthquake: An Intraplate Event Triggered by Deep Fluids
published pages: 8886-8896, ISSN: 0094-8276, DOI: 10.1029/2018gl078297
Geophysical Research Letters 45/17 2019-08-29
2018 B. Gombert, Z. Duputel, R. Jolivet, M. Simons, J. Jiang, C. Liang, E.J. Fielding, L. Rivera
Strain budget of the Ecuador–Colombia subduction zone: A stochastic view
published pages: 288-299, ISSN: 0012-821X, DOI: 10.1016/j.epsl.2018.06.046
Earth and Planetary Science Letters 498 2019-08-29
2018 Pierre Romanet, Harsha S. Bhat, Romain Jolivet, Raúl Madariaga
Fast and Slow Slip Events Emerge Due to Fault Geometrical Complexity
published pages: 4809-4819, ISSN: 0094-8276, DOI: 10.1029/2018gl077579
Geophysical Research Letters 45/10 2019-08-29
2017 B Gombert, Z Duputel, R Jolivet, C Doubre, L Rivera, M Simons
Revisiting the 1992 Landers earthquake: a Bayesian exploration of co-seismic slip and off-fault damage
published pages: 839-852, ISSN: 0956-540X, DOI: 10.1093/gji/ggx455
Geophysical Journal International 212/2 2019-08-29
2017 Sylvain Michel, Jean‐Philippe Avouac, Romain Jolivet, Lifeng Wang
Seismic and Aseismic Moment Budget and Implication for the Seismic Potential of the Parkfield Segment of the San Andreas Fault
published pages: 19-38, ISSN: 0037-1106, DOI: 10.1785/0120160290
Bulletin of the Seismological Society of America 108/1 2019-08-29

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