POSTSEISMIC DEFORMATION IN SOUTH ICELAND STUDIED USING MULTIPLE ACQUISTION RADAR INTERFEROMETRY
Models of two different postseismic mechanisms, viscoelastic relaxation and afterslip, can both explain yearly GPS observations following two magnitude 6.5 earthquakes that occurred in South Iceland in 2000, as these models predict very similar horizontal displacements. However, the predicted vertic...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.582.4022 2023-05-15T16:47:10+02:00 POSTSEISMIC DEFORMATION IN SOUTH ICELAND STUDIED USING MULTIPLE ACQUISTION RADAR INTERFEROMETRY Sigurjón Jónsson Jörn Hoffmann Thóra Árnadóttir The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.582.4022 http://www.seg2.ethz.ch/jonssons/Jonsson_SISZ_Envisat07.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.582.4022 http://www.seg2.ethz.ch/jonssons/Jonsson_SISZ_Envisat07.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.seg2.ethz.ch/jonssons/Jonsson_SISZ_Envisat07.pdf text ftciteseerx 2016-08-28T00:02:51Z Models of two different postseismic mechanisms, viscoelastic relaxation and afterslip, can both explain yearly GPS observations following two magnitude 6.5 earthquakes that occurred in South Iceland in 2000, as these models predict very similar horizontal displacements. However, the predicted vertical displacements of these models differ, and thus good information about the vertical displacements is needed to distinguish between these competing explanations. Within this project we attempt to retrieve information about the vertical deformation using persistent scatterer (PS) interferometric analysis with 32 ERS-2 SAR scenes of the area from 2000-2005. However, the results of the PS analysis were limited as the work was hampered by a typically low density of stable points in this rural farming area and by large Doppler centroids. More success was achieved by using a small baseline approach with ~25 multilooked and filtered interferograms that were unwrapped and then used in time-series analyses. 1. Text Iceland Unknown |
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English |
description |
Models of two different postseismic mechanisms, viscoelastic relaxation and afterslip, can both explain yearly GPS observations following two magnitude 6.5 earthquakes that occurred in South Iceland in 2000, as these models predict very similar horizontal displacements. However, the predicted vertical displacements of these models differ, and thus good information about the vertical displacements is needed to distinguish between these competing explanations. Within this project we attempt to retrieve information about the vertical deformation using persistent scatterer (PS) interferometric analysis with 32 ERS-2 SAR scenes of the area from 2000-2005. However, the results of the PS analysis were limited as the work was hampered by a typically low density of stable points in this rural farming area and by large Doppler centroids. More success was achieved by using a small baseline approach with ~25 multilooked and filtered interferograms that were unwrapped and then used in time-series analyses. 1. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Sigurjón Jónsson Jörn Hoffmann Thóra Árnadóttir |
spellingShingle |
Sigurjón Jónsson Jörn Hoffmann Thóra Árnadóttir POSTSEISMIC DEFORMATION IN SOUTH ICELAND STUDIED USING MULTIPLE ACQUISTION RADAR INTERFEROMETRY |
author_facet |
Sigurjón Jónsson Jörn Hoffmann Thóra Árnadóttir |
author_sort |
Sigurjón Jónsson |
title |
POSTSEISMIC DEFORMATION IN SOUTH ICELAND STUDIED USING MULTIPLE ACQUISTION RADAR INTERFEROMETRY |
title_short |
POSTSEISMIC DEFORMATION IN SOUTH ICELAND STUDIED USING MULTIPLE ACQUISTION RADAR INTERFEROMETRY |
title_full |
POSTSEISMIC DEFORMATION IN SOUTH ICELAND STUDIED USING MULTIPLE ACQUISTION RADAR INTERFEROMETRY |
title_fullStr |
POSTSEISMIC DEFORMATION IN SOUTH ICELAND STUDIED USING MULTIPLE ACQUISTION RADAR INTERFEROMETRY |
title_full_unstemmed |
POSTSEISMIC DEFORMATION IN SOUTH ICELAND STUDIED USING MULTIPLE ACQUISTION RADAR INTERFEROMETRY |
title_sort |
postseismic deformation in south iceland studied using multiple acquistion radar interferometry |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.582.4022 http://www.seg2.ethz.ch/jonssons/Jonsson_SISZ_Envisat07.pdf |
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Iceland |
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Iceland |
op_source |
http://www.seg2.ethz.ch/jonssons/Jonsson_SISZ_Envisat07.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.582.4022 http://www.seg2.ethz.ch/jonssons/Jonsson_SISZ_Envisat07.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766037257680060416 |