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Four-dimensional surface evolution of active rifting from spaceborne SAR data

Francesco Casu and Andrea Manconi
Four-dimensional surface evolution of active rifting from spaceborne SAR data
Geosphere (Boulder, CO) (June 2016) 12 (3): 697-705

Abstract

We present a case study for detecting the four-dimensional (4-D) displacement of rift zones affected by large-magnitude deformation, by using spaceborne synthetic aperture radar (SAR) data. Our method relies on the combination of displacement time series generated from pixel offset estimates on the amplitude information of multitemporal SAR images acquired from different orbit passes and with different looking geometries. We successfully applied the technique on advanced SAR (ASAR) Envisat data acquired from ascending and descending orbits over the Afar rift zone (Ethiopia) during the 2006-2010 time span. Our results demonstrate the effectiveness of the proposed technique to retrieve the full 4-D (i.e., north, east, up, and time) displacement field associated with active rifting affected by very large-magnitude deformation.


EISSN: 1553-040X
Serial Title: Geosphere (Boulder, CO)
Serial Volume: 12
Serial Issue: 3
Title: Four-dimensional surface evolution of active rifting from spaceborne SAR data
Affiliation: CNR, Istituto per il Rilevamento Elettromagnetico dell'Ambiente, Naples, Italy
Pages: 697-705
Published: 201606
Text Language: English
Publisher: Geological Society of America, Boulder, CO, United States
References: 25
Accession Number: 2016-076722
Categories: Solid-earth geophysicsApplied geophysics
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, sketch map
N03°25'00" - N18°00'00", E33°00'00" - E48°00'00"
Secondary Affiliation: Swiss Federal Institute of Technology, CHE, Switzerland
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States
Update Code: 201637
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