NDLI: Long-term airborne DInSAR measurements: P- and X-band cases

Content Provider	IEEE Xplore Digital Library
Author	de Macedo, K.A.C. Wimmer, C. Barreto, T.L.M. Lubeck, D. Moreira, J.R. Rabaco, L.M.L. de Oliveira, W.J.
Copyright Year	2011
Description	Author affiliation: PETROBRAS/ENGENHARIA/IETEG/ETEG/EAMB, Rio de Janeiro - Brazil (de Oliveira, W.J.) \|\| PETROBRAS/CENPES/PDP/MC, Rio de Janeiro - Brazil (Rabaco, L.M.L.) \|\| OrbiSat Remote Sensing, São José dos Campos - SP, Brazil (de Macedo, K.A.C.; Wimmer, C.; Barreto, T.L.M.; Lubeck, D.; Moreira, J.R.)
Abstract	Recently, some experiments demonstrated that reliable DIn-SAR measurements can be achieved at any band and that further time-series analyses can be applied for airborne data. However, most of the airborne DInSAR results, including the time-series, published so far have focused on short-term analyses (baselines within hours or few days). This paper presents the first worldwide airborne DInSAR survey at P- and X-band for measuring the land movements occurred within 1 year and 3 months. The survey was performed by the OrbiSAR system of OrbiSat under contract with Petrobras (CENPES), as part of a experiment with the objective to identify possible threats to the pipeline due to land movements in São Sebastião-SP, Brazil. The measurements at P-band show reliable and coherent movements in 80% of the imaged vegetated areas with accuracy in the order of centimeters. At X-band we were able to reliably measure coherent movements in urban areas with accuracy in the order of millimeters. Through field work evidences, the paper analyses the causes of these small scale land movements, and howthey are related to geodynamic processes. A comparison between the DInSAR and in-loco inclinometer measurements is presented. The paper suggests some possible operational scenarios and discusses on the potential of the airborne DInSAR for land movement monitoring.
Starting Page	1175
Ending Page	1178
File Size	3131501
Page Count	4
File Format	PDF
ISBN	9781457710032
ISSN	21537003
e-ISBN	9781457710056
DOI	10.1109/IGARSS.2011.6049407
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interferometry Synthetic aperture radar Motion measurement Estimation Area measurement Accuracy Cities and towns airborne differential interferometry
Content Type	Text
Resource Type	Article

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