A Multitemporal Method for Correction of Tropospheric Effects in Differential SAR Interferometry: Application to the Gulf of Corinth Earthquake

Chaâbane, F.; Avallone, A.; Tupin, Florence; Briole, Pierre; Maître, H.

doi:10.1109/tgrs.2007.894026

Cited by 42 publications

(21 citation statements)

References 18 publications

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“…A combined model [21,33] comprising a biquadratic model for orbital phase errors [34] and a linear model for the elevation dependent Remote Sens. 2017, 9, 1046 5 of 17 errors (stratified atmospheric delay and topographic errors) [35] is used to reduce the artefacts of orbit, residual topography, and atmospheric disturbance [21]. The combined model equation is as follows:…”

Section: Sbasmentioning

confidence: 99%

Application of InSAR Techniques to an Analysis of the Guanling Landslide

et al. 2017

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Abstract:On the afternoon of 28 June 2010, an enormous landslide occurred in the Gangwu region of Guanling County, Guizhou Province. In order to better understand the mechanism of the Guanling landslide, archived ALOS/PALSAR data was used to acquire the deformation prior to the landslide occurrence through stacking and time-series InSAR techniques. First, the deformation structure from InSAR was compared to the potential creep bodies identified using the optical remote sensing data. A strong consistency between the InSAR detected deformed regions and the creep bodies detected from optical remote sensing images was achieved. Around 10 creep bodies were suffering from deformation. In the source area, the maximum pre-slide mean deformation rate along the slope direction reached 160 mm/year, and the uncertainty of the deformation rates ranged from 15 to 34 mm/year. Then, the pre-slide deformation at the source area was analyzed in terms of the topography, geological structure, and historical rainfall records. Through observation and analysis, the deformation pattern of one creep body located within the source area can be segmented into three sections: a creeping section in the front, a locking section in the middle, and a cracking section in the rear. These sections constitute one of the common landslide modes seen in the south-west of China. This study concluded that a sudden shear failure in the locking segment of one creeping body located within the source area was caused by a strong rainstorm, which triggered the Guanling landslide.

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Section: Sbasmentioning

confidence: 99%

Application of InSAR Techniques to an Analysis of the Guanling Landslide

et al. 2017

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“…The phase delay associated with the atmospheric turbulence can be corrected or mitigated by stacking or averaging a large number of interfetograms, since the turbulence has short spatial correlation length with virtually no temporal correlation between data acquisition times e.g., [608,[614][615][616]. Tropospheric stratification is associated with temperature, pressure, and water vapor, and it introduces phase delays correlated with topography, leading to misinterpreted InSAR data in the areas of steep topography e.g., [617].…”

Section: Atmospheric and Ionospheric Effectsmentioning

confidence: 99%

Recent Trend and Advance of Synthetic Aperture Radar with Selected Topics

2013

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The present article is an introductory paper in this special issue on synthetic aperture radar (SAR). A short review is presented on the recent trend and development of SAR and related techniques with selected topics, including the fields of applications, specifications of airborne and spaceborne SARs, and information contents in and interpretations of amplitude data, interferometric SAR (InSAR) data, and polarimetric SAR (PolSAR) data. The review is by no means extensive, and as such only brief summaries of of each selected topics and key references are provided. For further details, the readers are recommended to read the literature given in the references theirin.

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“…Currently, no methods are able to quantify them accurately and routinely [39], so most studies consider it as a random signal or noise affecting interferograms. The vertical stratification contribution is correlated with elevation [40][41][42], as the delay in radar microwave propagation from the satellite to the ground depends on the integrated atmospheric water vapor content, which is dependent upon the scene elevation.…”

Section: Correction Of the Atmospheric Phase Delaymentioning

confidence: 99%

Mapping Land Subsidence Related to Underground Coal Fires in the Wuda Coalfield (Northern China) Using a Small Stack of ALOS PALSAR Differential Interferograms

et al. 2013

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Coal fires have been found to be a serious problem worldwide in coal mining reserves. Coal fires burn valuable coal reserves and lead to severe environmental degradation of the region. Moreover, coal fires can result in massive surface displacements due to the reduction in volume of the burning coal and can cause thermal effects in the adjacent rock mass particularly cracks and fissures. The Wuda coalfield in Northern China is known for being an exclusive storehouse of prime coking coal as well as for being the site of occurrence of the maximum number of known coal fires among all the coalfields in China and worldwide, and is chosen as our study area. In this study, we have investigated the capabilities and limitations of ALOS PALSAR data for monitoring the land subsidence that accompanies coal fires by means of satellite differential interferometric synthetic aperture radar (DInSAR) observations. An approach to map the large and highly non-linear subsidence based on a small number of SAR images was applied to the Wuda coalfield to reveal the spatial and temporal signals of land subsidence in areas affected by coal fires. The DInSAR results agree well with coal fire data obtained from field investigations and thermal anomaly information, which demonstrates that the capability of ALOS PALSAR data and the proposed approach have remarkable potential to detect this land subsidence of interest. In OPEN ACCESSRemote Sens. 2013, 5 1153 addition, our results also provide a spatial extent and temporal evolution of the land subsidence behavior accompanying the coal fires, which indicated that several coal fire zones suffer accelerated ongoing land subsidence, whilst other coal fire zones are newly subsiding areas arising from coal fires in the period of development.

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A Multitemporal Method for Correction of Tropospheric Effects in Differential SAR Interferometry: Application to the Gulf of Corinth Earthquake

Cited by 42 publications

References 18 publications

Application of InSAR Techniques to an Analysis of the Guanling Landslide

Application of InSAR Techniques to an Analysis of the Guanling Landslide

Recent Trend and Advance of Synthetic Aperture Radar with Selected Topics

Mapping Land Subsidence Related to Underground Coal Fires in the Wuda Coalfield (Northern China) Using a Small Stack of ALOS PALSAR Differential Interferograms

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