Measuring the north-south coseismic displacement component with high-resolution multi-aperture InSAR

John Peter Merryman Boncori*, Giuseppe Pezzo

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Earthquake source inversions based on space-borne Synthetic Aperture Radar interferometry (InSAR) are used extensively. Typically, however, only the line-of-sight (LoS) surface displacement component is measured, which is mainly sensitive to the vertical and E-W deformations, although well-established methods also exist to estimate the flight-path component, which is highly sensitive to the N-S displacement. With high-resolution sensors, these techniques are particularly appealing, because accuracies in the order of 3 cm can be achieved, while retaining spatial resolutions between 45 m and a few km, depending on the required level of filtering. We discuss the application to COSMO-SkyMed SAR imagery of the Spectral Diversity or Multi Aperture Interferometry technique, presenting the first SAR flight-path displacement field associated with the Mw 6.3, 2009 L'Aquila event (central Apennines). Finally, we observe and characterize a previously unknown misregistration pattern.

Original languageEnglish
JournalTerra Nova
Volume27
Issue number1
Pages (from-to)28-35
ISSN0954-4879
DOIs
Publication statusPublished - 2015
Externally publishedYes

Cite this

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title = "Measuring the north-south coseismic displacement component with high-resolution multi-aperture InSAR",
abstract = "Earthquake source inversions based on space-borne Synthetic Aperture Radar interferometry (InSAR) are used extensively. Typically, however, only the line-of-sight (LoS) surface displacement component is measured, which is mainly sensitive to the vertical and E-W deformations, although well-established methods also exist to estimate the flight-path component, which is highly sensitive to the N-S displacement. With high-resolution sensors, these techniques are particularly appealing, because accuracies in the order of 3 cm can be achieved, while retaining spatial resolutions between 45 m and a few km, depending on the required level of filtering. We discuss the application to COSMO-SkyMed SAR imagery of the Spectral Diversity or Multi Aperture Interferometry technique, presenting the first SAR flight-path displacement field associated with the Mw 6.3, 2009 L'Aquila event (central Apennines). Finally, we observe and characterize a previously unknown misregistration pattern.",
author = "{Merryman Boncori}, {John Peter} and Giuseppe Pezzo",
year = "2015",
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language = "English",
volume = "27",
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journal = "Terra Nova",
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}

Measuring the north-south coseismic displacement component with high-resolution multi-aperture InSAR. / Merryman Boncori, John Peter; Pezzo, Giuseppe.

In: Terra Nova, Vol. 27, No. 1, 2015, p. 28-35.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Measuring the north-south coseismic displacement component with high-resolution multi-aperture InSAR

AU - Merryman Boncori, John Peter

AU - Pezzo, Giuseppe

PY - 2015

Y1 - 2015

N2 - Earthquake source inversions based on space-borne Synthetic Aperture Radar interferometry (InSAR) are used extensively. Typically, however, only the line-of-sight (LoS) surface displacement component is measured, which is mainly sensitive to the vertical and E-W deformations, although well-established methods also exist to estimate the flight-path component, which is highly sensitive to the N-S displacement. With high-resolution sensors, these techniques are particularly appealing, because accuracies in the order of 3 cm can be achieved, while retaining spatial resolutions between 45 m and a few km, depending on the required level of filtering. We discuss the application to COSMO-SkyMed SAR imagery of the Spectral Diversity or Multi Aperture Interferometry technique, presenting the first SAR flight-path displacement field associated with the Mw 6.3, 2009 L'Aquila event (central Apennines). Finally, we observe and characterize a previously unknown misregistration pattern.

AB - Earthquake source inversions based on space-borne Synthetic Aperture Radar interferometry (InSAR) are used extensively. Typically, however, only the line-of-sight (LoS) surface displacement component is measured, which is mainly sensitive to the vertical and E-W deformations, although well-established methods also exist to estimate the flight-path component, which is highly sensitive to the N-S displacement. With high-resolution sensors, these techniques are particularly appealing, because accuracies in the order of 3 cm can be achieved, while retaining spatial resolutions between 45 m and a few km, depending on the required level of filtering. We discuss the application to COSMO-SkyMed SAR imagery of the Spectral Diversity or Multi Aperture Interferometry technique, presenting the first SAR flight-path displacement field associated with the Mw 6.3, 2009 L'Aquila event (central Apennines). Finally, we observe and characterize a previously unknown misregistration pattern.

U2 - 10.1111/ter.12127

DO - 10.1111/ter.12127

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VL - 27

SP - 28

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