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Spatiotemporal Analysis of C-band interferometric Phase Anomalies over Sicily

De Zan, Francesco and Saporta, Paloma and Gomba, Giorgio (2022) Spatiotemporal Analysis of C-band interferometric Phase Anomalies over Sicily. In: Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR, pp. 1-4. EUSAR 2022, Leipzig, Deutschland. ISSN 2197-4403.

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Short temporal SAR interferograms present a phase which is biased with respect to the surface deformation signal. We analyse the anomalies in terms of their spatiotemporal patterns in a C-band Sentinel-1 dataset. The temporal high-pass component can be explained with moisture variations as sensed by the ASCAT scatterometer. The low-pass components need a different explanation. Considering the apparent accumulation of delay, the spatial correlation to land cover types or topographic height, and the seasonality, they are compatible with wet biomass accumulation. The strong decorrelation observed is likely related to strong vegetation extinction in C-band.

Item URL in elib:https://elib.dlr.de/186909/
Document Type:Conference or Workshop Item (Speech)
Title:Spatiotemporal Analysis of C-band interferometric Phase Anomalies over Sicily
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
De Zan, FrancescoUNSPECIFIEDhttps://orcid.org/0000-0002-1643-2559UNSPECIFIED
Saporta, PalomaUNSPECIFIEDhttps://orcid.org/0009-0003-4084-630XUNSPECIFIED
Gomba, GiorgioUNSPECIFIEDhttps://orcid.org/0000-0003-0227-2096UNSPECIFIED
Journal or Publication Title:Proceedings of the European Conference on Synthetic Aperture Radar, EUSAR
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-4
Keywords:InSAR, bias, anomaly, biomass, soil moisture, interferometry, closure phase
Event Title:EUSAR 2022
Event Location:Leipzig, Deutschland
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - SAR methods
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Microwaves and Radar Institute > Radar Concepts
Deposited By: De Zan, Francesco
Deposited On:09 Aug 2022 17:29
Last Modified:29 Mar 2023 00:10

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