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dc.contributor.author
Baffelli, Simone
dc.contributor.author
Frey, Othmar
dc.contributor.author
Hajnsek, Irena
dc.date.accessioned
2020-10-30T15:28:20Z
dc.date.available
2020-06-11T14:32:21Z
dc.date.available
2020-06-19T09:35:36Z
dc.date.available
2020-10-30T15:28:20Z
dc.date.issued
2020-11
dc.identifier.issn
0196-2892
dc.identifier.issn
1558-0644
dc.identifier.other
10.1109/tgrs.2020.2976656
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/419838
dc.description.abstract
Terrestrial radar interferometry (TRI) can measure displacements at high temporal resolution, potentially with high accuracy. An application of this method is the observation of the surface flow velocity of steep, fast-flowing aglaciers. For these observations, the main factor limiting the accuracy of TRI observations is the spatial and temporal variabilities in the distribution of atmospheric water vapor content, causing a phase delay [atmospheric phase screen (APS)] whose magnitude is similar to the displacement phase. This contribution presents a geostatistical analysis of the spatial and temporal behaviors of the APS in Ku-Band TRI. The analysis is based on the assumption of a separable spatiotemporal covariance structure, which is tested empirically using variogram analysis. From this analysis, spatial and temporal APS statistics are estimated and used in a two-step procedure combining regression-Kriging with generalized least squares (GLS) inversion to estimate a velocity time-series. The performance of this method is evaluated by cross-validation using phase observations on stable scatterers. This analysis shows a considerable reduction in residual phase variance compared with the standard approach of combining the linear models of APS stratification and interferogram stacking.
en_US
dc.language.iso
en
en_US
dc.publisher
IEEE
en_US
dc.subject
Atmospheric modeling
en_US
dc.subject
Atmospheric phase screen (APS)
en_US
dc.subject
Differential radar interferometry (D-InSAR)
en_US
dc.subject
Synthetic aperture radar (SAR)
en_US
dc.subject
Terrestrial radar interferometry (TRI)
en_US
dc.title
Geostatistical Analysis and Mitigation of the Atmospheric Phase Screens in Ku-Band Terrestrial Radar Interferometric Observations of an Alpine Glacier
en_US
dc.type
Journal Article
dc.date.published
2020-04-13
ethz.journal.title
IEEE Transactions on Geoscience and Remote Sensing
ethz.journal.volume
58
en_US
ethz.journal.issue
11
en_US
ethz.journal.abbreviated
IEEE trans. geosci. remote sens
ethz.pages.start
7533
en_US
ethz.pages.end
7556
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
New York, NY
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02608 - Institut für Umweltingenieurwiss. / Institute of Environmental Engineering::03849 - Hajnsek, Irena / Hajnsek, Irena
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02608 - Institut für Umweltingenieurwiss. / Institute of Environmental Engineering::03849 - Hajnsek, Irena / Hajnsek, Irena::08704 - SAR Tomographie und PSI Deformationsb.
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02608 - Institut für Umweltingenieurwiss. / Institute of Environmental Engineering::03849 - Hajnsek, Irena / Hajnsek, Irena
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02608 - Institut für Umweltingenieurwiss. / Institute of Environmental Engineering::03849 - Hajnsek, Irena / Hajnsek, Irena::08704 - SAR Tomographie und PSI Deformationsb.
ethz.date.deposited
2020-06-11T14:32:31Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2020-10-30T15:28:29Z
ethz.rosetta.lastUpdated
2022-03-29T03:51:53Z
ethz.rosetta.versionExported
true
ethz.COinS
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