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Auteur Yann Klinger |
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Affiner la recherche Interroger des sources externesComplex deformation at shallow depth during the 30 October 2016 Mw6.5 Norcia earthquake: interferencebetween tectonic and gravity processes? / Arthur Delorme in Tectonics, vol 39 n° 2 (February 2020)
Titre : Complex deformation at shallow depth during the 30 October 2016 Mw6.5 Norcia earthquake: interferencebetween tectonic and gravity processes? Type de document : Article/Communication Auteurs : Arthur Delorme, Auteur ; Raphaël Grandin, Auteur ; Yann Klinger, Auteur ; Marc Pierrot-Deseilligny Année de publication : 2020 Projets : Université de Paris / Clerici, Christine Article en page(s) : n° e2019TC005596 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image mixte
[Termes IGN] analyse comparative
[Termes IGN] appariement d'images
[Termes IGN] compensation locale par faisceaux
[Termes IGN] déformation de la croute terrestre
[Termes IGN] données GPS
[Termes IGN] données spatiotemporelles
[Termes IGN] effondrement de terrain
[Termes IGN] géodésie physique
[Termes IGN] image à résolution submétrique
[Termes IGN] image ALOS
[Termes IGN] image Pléiades-HR
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] Italie
[Termes IGN] MicMac
[Termes IGN] modèle par fonctions rationnelles
[Termes IGN] séismeRésumé : (Auteur) The relation between slip at the near surface and at depth during earthquakes is still not fully resolved at the moment. This deficiency leads to large uncertainties in the evaluation of the magnitude of past earthquakes based on surfaceobservations, which is the only accessible evidence for such events. A better knowledge of the way slip distributes over distinct rupture strands within the first few kilometers from the surface would contribute greatly to reduce these uncertainties. The 30 October 2016 Mw6.5 Norcia earthquake has been captured by a variety of geodetic techniques, which provide access to the slip distribution both at depth and at the ground surface, with an unprecedented level of detail for a normal-faulting earthquake. Wefirst present coseismic surface offset measurements from correlation of optical satellite imagesof sub-metric resolution, which are compared to field observations made shortly after the earthquake. Based on a joint inversion of optical data together withInSAR and GPS data, we then propose a rupture model that explains the observations both at far-field and near-field scales. Finally we explore different rupture geometriesat shallow depth, in an attempt to better explain the near-field deformation (i.e. within the first hundreds of meters around the fault)observed at the surface. Despite the fact that the solution is not unique, several lines of evidence suggest that gravity processes could be locally involved, which interfere with the dominant tectonic processes. Numéro de notice : A2020-039 Affiliation des auteurs : LASTIG+Ext (2016-2019) Thématique : IMAGERIE/POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1029/2019TC005596 Date de publication en ligne : 03/01/2020 En ligne : https://dx.doi.org/10.1029/2019TC005596 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94501
in Tectonics > vol 39 n° 2 (February 2020) . - n° e2019TC005596[article]Documents numériques
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Complex deformation at shallow depth... - pdf auteurAdobe Acrobat PDF
Titre : Geological structures control on earthquake ruptures: The Mw7.7, 2013, Balochistan earthquake, Pakistan Type de document : Article/Communication Auteurs : A. Vallage, Auteur ; Yann Klinger, Auteur ; R. Lacassin, Auteur ; Arthur Delorme, Auteur ; Marc Pierrot-Deseilligny Année de publication : 2016 Article en page(s) : pp 10155 - 10163 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications photogrammétriques
[Termes IGN] déformation verticale de la croute terrestre
[Termes IGN] Pakistan
[Termes IGN] séisme
[Termes IGN] structure géologique
[Termes IGN] subductionRésumé : (auteur) The 2013 Mw7.7 Balochistan earthquake, Pakistan, ruptured the Hoshab fault. Left‐lateral motion dominated the deformation pattern, although significant vertical motion is found along the southern part of the rupture. Correlation of high‐resolution (2.5 m) optical satellite images provided horizontal displacement along the entire rupture. In parallel, we mapped the ground rupture geometry at 1:500 scale. We show that the azimuth of the ground rupture distributes mainly between two directions, N216° and N259°. The direction N216° matches the direction of preexisting geologic structures resulting from penetrative deformation caused by the nearby Makran subduction. Hence, during a significant part of its rupture, the 2013 Balochistan rupture kept switching between a long‐term fault front and secondary branches, in which existence and direction are related to the compressional context. It shows unambiguous direct interactions between different preexisting geologic structures, regional stress, and dynamic‐rupture stress, which controlled earthquake propagation path. Numéro de notice : A2016--179 Affiliation des auteurs : LASTIG MATIS+Ext (2012-2019) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1002/2016GL070418 Date de publication en ligne : 09/10/2016 En ligne : https://doi.org/10.1002/2016GL070418 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91807
in Geophysical research letters > vol 43 n° 19 (15 October 2016) . - pp 10155 - 10163[article]
Titre : Refined satellite image orientation in the free open-source photogrammetric tools Apero/MicMac Type de document : Article/Communication Auteurs : Ewelina Rupnik Année de publication : 2016 Projets : TOSCA / Clerici, Christine Conférence : ISPRS 2016, Commission 3, 23th international congress 12/07/2016 19/07/2016 Prague République tchèque ISPRS OA Annals Commission 3 Article en page(s) : 8 p. Note générale : bibliographie
The authors would like to thank CNES for funding this project through the TOSCA program.Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique
[Termes IGN] APERO
[Termes IGN] compensation par faisceaux
[Termes IGN] géoréférencement
[Termes IGN] image Pléiades-HR
[Termes IGN] MicMac
[Termes IGN] modèle par fonctions rationnelles
[Termes IGN] orientation absolue
[Termes IGN] point d'appui
[Termes IGN] rotationRésumé : (auteur) This publication presents the RPC-based bundle adjustment implemented in the freeware open-source photogrammetric tool Apero/MicMac. The bundle adjustment model is based on some polynomial correction functions, enriched with a physical constraint that introduces the notion of a global sensor rotation into the model. The devised algorithms are evaluated against two datasets consisting of two stereo and a triplet pair of the Pleiades images. Two sets of correction functions and a number of GCPs configurations are examined. The obtained geo-referencing accuracy falls below the size of 1GSD. Numéro de notice : A2016--189 Affiliation des auteurs : ENSG+Ext (2012-2019) Autre URL associée : vers HAL Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.5194/isprs-annals-III-1-83-2016 Date de publication en ligne : 01/06/2016 En ligne : http://dx.doi.org/10.5194/isprs-annals-III-1-83-2016 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91831
in ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences > vol III-1 (July 2016) . - 8 p.[article]Documents numériques
en open access
Refined satellite image orientation ... - pdf éditeurAdobe Acrobat PDF
Titre : Inelastic surface deformation during the 2013 Mw 7.7 Balochistan, Pakistan, earthquake Type de document : Article/Communication Auteurs : A. Vallage, Auteur ; Yann Klinger, Auteur ; R. Grandin, Auteur ; H.S. Bhat, Auteur ; Marc Pierrot-Deseilligny Année de publication : 2015 Article en page(s) : pp 1079 - 1082 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] déformation de la croute terrestre
[Termes IGN] faille géologique
[Termes IGN] image optique
[Termes IGN] image radar
[Termes IGN] image satellite
[Termes IGN] Pakistan
[Termes IGN] séismeRésumé : (auteur) Comprehensive quantification of the near-field deformation associated with an earthquake is difficult due to the inherent complexity of surface ruptures. The A.D. 2013 Mw 7.7 Balochistan (Pakistan) earthquake, dominated by left-lateral motion with some reverse component, ruptured a 200-km-long section of the Hoshab fault. We characterize the coseismic rupture in detail along its entire length. Optical and radar satellite images are combined to derive the full three-dimensional far-field displacement (115 m pixel size) and the high-resolution 2.5 m pixel horizontal displacement field resulting from the earthquake. We show that the vertical deformation is significant in several locations. The high-resolution near-field horizontal displacement ( Numéro de notice : A2015--113 Affiliation des auteurs : IGN+Ext (2012-2019) Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1130/G37290.1 Date de publication en ligne : 14/10/2015 En ligne : https://doi.org/10.1130/G37290.1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90651
in Geology > vol 43 n° 12 (December 2015) . - pp 1079 - 1082[article]
