NDLI: Long-Term and Seasonal Subidence Rates in Urban Areas from Persistent Scatterer Interferometry

Content Provider	IEEE Xplore Digital Library
Author	Meyer, F. Gernhardt, S. Adam, N.
Copyright Year	2007
Description	Author affiliation: German Aerosp. Center (DLR), Wessling (Meyer, F.)
Abstract	As it is well known, space-borne radar interferometry (InSAR) is an appealing and powerful technique to measure the earth's topography and surface deformation with high accuracy and high spatial coverage and sampling. Even though the potential of InSAR was extensively proven within the last years and has been widely recognized throughout the scientific community, its value and applicability to geodynamic monitoring problems is severely limited by the influence of temporal decorrelation and electromagnetic path delay variations. The invention of the multi-image Persistent Scatterer (PS) technique in the late 1990's was a big step forward towards a high accuracy observation of slow surface motion and object deformation over long temporal time spans as it enables the identification, isolation, and estimation of millimeter surface deformation processes from space. This approach proves to be particularly suitable for the observation of the deformation regimes of cities from wide (deformation of extended areas) to small scales (deformation of isolated buildings). In this paper the functionality and the basic workflow of the original PS technique is described. Starting from this overview, every processing step is explained in detail and recent advances are mentioned. Based on this the performance of Persistent Scatterer Interferometry to measure linear as well as nonlinear surface deformation with high accuracy and high spatial sampling is exemplified by a case study from the city of Munich. A summary and an outlook concludes the paper.
Starting Page	1
Ending Page	6
File Size	7740926
Page Count	6
File Format	PDF
ISBN	1424407117
DOI	10.1109/URS.2007.371883
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-11
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Earth Spaceborne radar Urban areas Electromagnetic scattering Radar scattering Cities and towns Sampling methods Synthetic aperture radar interferometry Surface topography Radar interferometry
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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