River dike deformation measurement with airborne SAR
article
Due to extremely high water levels or extremely dry periods, river dikes can deform and eventually burst. The deformation can be measured with repeat-pass synthetic aperture radar (SAR) interferometry. Two flights (5.5-day interval) with an airborne C-band SAR were carried out to verify a particular case. During the second flight, the dike was deliberately deformed. Interferogram analyses showed that the dike deformed by at most 2 mm on this day, in approximate agreement with tachymeter measurements. Corner reflector analysis showed a deformation of about 1 cm during the 5.5-day interval, in good agreement with ground measurements.
Topics
TNO Identifier
237693
ISSN
1545598X
Source
IEEE Geoscience and Remote Sensing Letters, 1(2), pp. 94-97.
Pages
94-97
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