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Assessment of number and distribution of persistent scatterers prior to radar acquisition using open access land cover and topographical data

Plank, Simon and Singer, John and Thuro, Kurosch (2013) Assessment of number and distribution of persistent scatterers prior to radar acquisition using open access land cover and topographical data. ISPRS Journal of Photogrammetry and Remote Sensing, 85, pp. 132-147. Elsevier. DOI: 10.1016/j.isprsjprs.2013.09.001 ISSN 0924-2716

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Official URL: http://www.sciencedirect.com/science/article/pii/S0924271613002025

Abstract

Persistent scatterer synthetic aperture radar interferometry (PSI) is a powerful remote sensing technique to detect and measure deformation of the Earth‘s crust – such as subsidence and landslides – with an accuracy of a few millimeters. Deformation is measured at specific points in a radar image called persistent scatterers (PS), which are characterized by long-term constant backscattering properties (high coherence) of the radar signal. Reliable PSI processing requires a stack of 15–50 SAR images and more, and processing is time-consuming (computational costs) and expensive (referring to both, costs for the SAR data and labor costs). Previous research for PS assessment used already acquired SAR data. This paper presents two new methods for predicting PS prior to the radar recording of the area of interest using freely available or low-cost land cover data, topographical maps and OpenStreetMap data. In the procedure, the distance between the assessed PS is calculated and classified regarding to the applicability for PSI processing. Additionally, the dispersion of the assessed PS within the site is analyzed. The results of the two assessment methods are validated using data of real PSI processing. Here, we show that the developed PS assessment techniques are fast and reliable tools to test the spatial applicability of PSI.

Item URL in elib:https://elib.dlr.de/90306/
Document Type:Article
Title:Assessment of number and distribution of persistent scatterers prior to radar acquisition using open access land cover and topographical data
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Plank, Simonsimon.plank (at) dlr.deUNSPECIFIED
Singer, JohnChair of Engineering Geology, ETH ZürichUNSPECIFIED
Thuro, KuroschChair for Engineering Geology, Technische Universität MünchenUNSPECIFIED
Date:2013
Journal or Publication Title:ISPRS Journal of Photogrammetry and Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:85
DOI :10.1016/j.isprsjprs.2013.09.001
Page Range:pp. 132-147
Publisher:Elsevier
ISSN:0924-2716
Status:Published
Keywords:Radar, SAR, Prediction, GIS, Persistent scatterer processing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Zivile Kriseninformation und Georisiken (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Geo Risks and Civil Security
Deposited By: Plank, Simon Manuel
Deposited On:08 Sep 2014 13:30
Last Modified:06 Sep 2019 15:28

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