Mapping Two-Dimensional Deformation Field Time-Series of Large Slope by Coupling DInSAR-SBAS with MAI-SBAS
Mapping deformation field time-series, including vertical and horizontal motions, is vital for landslide monitoring and slope safety assessment. However, the conventional differential synthetic aperture radar interferometry (DInSAR) technique can only detect the displacement component in the satelli...
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doaj-368254d831314ba0b6cf6e94e8c157c62020-11-25T00:49:53ZengMDPI AGRemote Sensing2072-42922015-09-0179124401245810.3390/rs70912440rs70912440Mapping Two-Dimensional Deformation Field Time-Series of Large Slope by Coupling DInSAR-SBAS with MAI-SBASLiming He0Lixin Wu1Shanjun Liu2Zhi Wang3Chang Su4Sheng-Nan Liu5Institute for Geo-Informatics and Digital Mine Research, College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaInstitute for Geo-Informatics and Digital Mine Research, College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaInstitute for Geo-Informatics and Digital Mine Research, College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaInstitute for Geo-Informatics and Digital Mine Research, College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaInstitute for Geo-Informatics and Digital Mine Research, College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaInstitute for Geo-Informatics and Digital Mine Research, College of Resources and Civil Engineering, Northeastern University, Shenyang 110819, ChinaMapping deformation field time-series, including vertical and horizontal motions, is vital for landslide monitoring and slope safety assessment. However, the conventional differential synthetic aperture radar interferometry (DInSAR) technique can only detect the displacement component in the satellite-to-ground direction, i.e., line-of-sight (LOS) direction displacement. To overcome this constraint, a new method was developed to obtain the displacement field time series of a slope by coupling DInSAR based small baseline subset approach (DInSAR-SBAS) with multiple-aperture InSAR (MAI) based small baseline subset approach (MAI-SBAS). This novel method has been applied to a set of 11 observations from the phased array type L-band synthetic aperture radar (PALSAR) sensor onboard the advanced land observing satellite (ALOS), spanning from 2007 to 2011, of two large-scale north–south slopes of the largest Asian open-pit mine in the Northeast of China. The retrieved displacement time series showed that the proposed method can detect and measure the large displacements that occurred along the north–south direction, and the gradually changing two-dimensional displacement fields. Moreover, we verified this new method by comparing the displacement results to global positioning system (GPS) measurements.http://www.mdpi.com/2072-4292/7/9/12440synthetic aperture radarDInSARmultiple-aperture InSARopen-pit slopedeformation field time-series |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Liming He Lixin Wu Shanjun Liu Zhi Wang Chang Su Sheng-Nan Liu |
spellingShingle |
Liming He Lixin Wu Shanjun Liu Zhi Wang Chang Su Sheng-Nan Liu Mapping Two-Dimensional Deformation Field Time-Series of Large Slope by Coupling DInSAR-SBAS with MAI-SBAS Remote Sensing synthetic aperture radar DInSAR multiple-aperture InSAR open-pit slope deformation field time-series |
author_facet |
Liming He Lixin Wu Shanjun Liu Zhi Wang Chang Su Sheng-Nan Liu |
author_sort |
Liming He |
title |
Mapping Two-Dimensional Deformation Field Time-Series of Large Slope by Coupling DInSAR-SBAS with MAI-SBAS |
title_short |
Mapping Two-Dimensional Deformation Field Time-Series of Large Slope by Coupling DInSAR-SBAS with MAI-SBAS |
title_full |
Mapping Two-Dimensional Deformation Field Time-Series of Large Slope by Coupling DInSAR-SBAS with MAI-SBAS |
title_fullStr |
Mapping Two-Dimensional Deformation Field Time-Series of Large Slope by Coupling DInSAR-SBAS with MAI-SBAS |
title_full_unstemmed |
Mapping Two-Dimensional Deformation Field Time-Series of Large Slope by Coupling DInSAR-SBAS with MAI-SBAS |
title_sort |
mapping two-dimensional deformation field time-series of large slope by coupling dinsar-sbas with mai-sbas |
publisher |
MDPI AG |
series |
Remote Sensing |
issn |
2072-4292 |
publishDate |
2015-09-01 |
description |
Mapping deformation field time-series, including vertical and horizontal motions, is vital for landslide monitoring and slope safety assessment. However, the conventional differential synthetic aperture radar interferometry (DInSAR) technique can only detect the displacement component in the satellite-to-ground direction, i.e., line-of-sight (LOS) direction displacement. To overcome this constraint, a new method was developed to obtain the displacement field time series of a slope by coupling DInSAR based small baseline subset approach (DInSAR-SBAS) with multiple-aperture InSAR (MAI) based small baseline subset approach (MAI-SBAS). This novel method has been applied to a set of 11 observations from the phased array type L-band synthetic aperture radar (PALSAR) sensor onboard the advanced land observing satellite (ALOS), spanning from 2007 to 2011, of two large-scale north–south slopes of the largest Asian open-pit mine in the Northeast of China. The retrieved displacement time series showed that the proposed method can detect and measure the large displacements that occurred along the north–south direction, and the gradually changing two-dimensional displacement fields. Moreover, we verified this new method by comparing the displacement results to global positioning system (GPS) measurements. |
topic |
synthetic aperture radar DInSAR multiple-aperture InSAR open-pit slope deformation field time-series |
url |
http://www.mdpi.com/2072-4292/7/9/12440 |
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