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Title:

A Study of Validation of Remote Sensing Technique in Levee Displacement Estimation

Accession Number:

01697313

Record Type:

Component

Abstract:

A remote-sensing based health assessment of flood-control infrastructure that can identify weak sections and impending failures can be a key component to the sustainability of these, and other interconnected, systems. The use of satellite or airborne radar may be the future of infrastructure monitoring through the utilization of technologies that are able to cost-effectively collect data on spatially distributed systems (satellite image coverage is approximately 1500 km2 for TerraSAR-X data from the German Space Agency). Preliminary results using satellite data to monitor the New Orleans area are included herein, with a particular focus on two levee sites that include in situ instrumentation for validation of the remotely sensed measurements. The levee sections with in situ extensometers and GPS were located at the London Ave Canal in the 7th Ward in New Orleans and the V-Line Levee in Marrero, LA. These two levee sections have very different designs and surrounding neighborhoods, which provided an opportunity to observe the strengths and weaknesses of different Interferometric Synthetic Aperture Radar (InSAR) processing techniques. In this study, Interferometric Point Target Analysis (IPTA) and N Small Baseline Subset Analysis (NSBAS) techniques were used with Stripmap TerraSAR-X satellite images collected over the New Orleans area between 2009 and 2014. The comparisons between the remote sensing results and in situ instrumentation show similar trends. Further comparisons are needed between results from these and other InSAR analysis techniques and in situ instrumentation at other levee sites.

Supplemental Notes:

This paper was sponsored by TRB committee AFS20 Standing Committee on Geotechnical Instrumentation and Modeling.

Report/Paper Numbers:

19-06049

Language:

English

Corporate Authors:

Transportation Research Board

Authors:

Nguyen, Dang Dinh Chung
Bennett, Victoria
Abdoun, Tarek
Zeghal, Mourad
O'Meara, Kathleen

Pagination:

7p

Publication Date:

2019

Conference:

Transportation Research Board 98th Annual Meeting

Location: Washington DC, United States
Date: 2019-1-13 to 2019-1-17
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; References

Geographic Terms:

New Orleans (Louisiana)

Subject Areas:

Geotechnology; Highways; Maintenance and Preservation

Source Data:

Transportation Research Board Annual Meeting 2019 Paper #19-06049

Files:

TRIS, TRB, ATRI

Created Date:

Dec 7 2018 9:23AM