期刊
GEOMORPHOLOGY
卷 201, 期 -, 页码 281-292出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.geomorph.2013.07.002
关键词
DGSD; Differential SAR interferometry; Remote sensing; Central Apennine
资金
- Fondazione Cassa di Risparmio di Foligno Award, Universita' degli Studi di Perugia - Corso di Laurea in Protezione Civile [1]
A quantitative and innovative DGSD (deep gravitational slope deformation) assessment method that used integrated remote sensing was tested in the central Apennine mountain range (Italy). The movement rate was calculated for selected test areas using the differential SAR interferometry small baseline subset (SBAS) technique. The selected test areas were previously identified by interpreting both aerial photos and using 32 ERS radar images taken between 1993 and 2000. More than 15 cm of cumulative surface displacement occurred across the Podalla DGSD along the satellite line of sight (LoS). Moreover, the displacement time series showed non-linear deformation rates, which included periods of accelerated movement correlated with strong rainfall. The high estimated Podalla DGSD activity indicates that this type of study should be conducted to monitor the evolution of this phenomenon. In addition, the DInSAR movement rate can be used to improve mapping and identify DGSDs in specific landscapes. (C) 2013 Elsevier B.V. All rights reserved.
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