Ground deformation tracking over Mt. Baekdu: A pre-evaluation of possible magma recharge by D-InSAR analysis

Kim, Jung-Rack; Lin, Shih-Yuan; Hong, Sungwook; Choi, Yunsoo; Yun, Hye-Won

doi:10.1007/s12205-013-0126-2

Cited by 6 publications

(14 citation statements)

References 15 publications

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“…Specifically over the site "a" indicated in Figure 7b, inflation up to 30 mm/year is shown. This deformation rate is significant and represent genuine surface change based on: (1) the coincidence with the deformation in the other SBAS campaign shown in Kim et al [22]; (2) its location in the non-vegetated area (hence this deformation was not the result of time varying scatterers); and (3) a relatively small velocity dispersion as shown in Figure 8. The sources of the other deformation in the small areas around the summit are not clearly identified as those are very localized pattern.…”

Section: Interpretation Of Stamps/mti Processing Resultssupporting

confidence: 65%

“…Baekdu, which was not covered by the on-site GPS and levelling survey conducted by [4] as the area is located within N. Korean territory. The phenomenon could also be observed in the SBAS analysis reported in [22]. All StaMPS/MTI observations identified quite obvious deformation (up to 15-30 mm) on the eastern flank.…”

Section: Interpretation Of Stamps/mti Processing Resultssupporting

confidence: 63%

“…Specifically over the site "a" indicated in Figure 7b, inflation up to 30 mm/year is shown. This deformation rate is significant and represent genuine surface change based on: (1) the coincidence with the deformation in the other SBAS campaign shown in Kim et al [22]; (2) its Together with the offset caused by the base DTM error, atmospheric error might be another unresolved error component. First, the discontinuities in error maps and Figure 5 should be noted.…”

Section: Interpretation Of Stamps/mti Processing Resultsmentioning

confidence: 55%

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Investigation of Potential Volcanic Risk from Mt. Baekdu by DInSAR Time Series Analysis and Atmospheric Correction

et al. 2017

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Abstract:Mt. Baekdu is a volcano near the North Korea-Chinese border that experienced a few destructive eruptions over the course of its history, including the well-known 1702 A.D eruption. However, signals of unrest, including seismic activity, gas emission and intense geothermal activity, have been occurring with increasing frequency over the last few years. Due to its close vicinity to a densely populated area and the high magnitude of historical volcanic eruptions, its potential for destructive volcanic activity has drawn wide public attention. However, direct field surveying in the area is limited due to logistic challenges. In order to compensate for the limited coverage of ground observations, comprehensive measurements using remote sensing techniques are required. Among these techniques, Differential Interferometric SAR (DInSAR) analysis is the most effective method for monitoring surface deformation and is employed in this study. Through advanced atmospheric error correction and time series analysis, the accuracy of the detected displacements was improved. As a result, clear uplift up to 20 mm/year was identified around Mt. Baekdu and was further used to estimate the possible deformation source, which is considered as a consequence of magma and fault interaction. Since the method for tracing deformation was proved feasible, continuous DInSAR monitoring employing upcoming SAR missions and advanced error regulation algorithms will be of great value in monitoring comprehensive surface deformation over Mt. Baekdu and in general world-wide active volcanoes.

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Section: Interpretation Of Stamps/mti Processing Resultssupporting

confidence: 65%

Section: Interpretation Of Stamps/mti Processing Resultssupporting

confidence: 63%

“…Specifically over the site "a" indicated in Figure 7b, inflation up to 30 mm/year is shown. This deformation rate is significant and represent genuine surface change based on: (1) the coincidence with the deformation in the other SBAS campaign shown in Kim et al [22]; (2) its Together with the offset caused by the base DTM error, atmospheric error might be another unresolved error component. First, the discontinuities in error maps and Figure 5 should be noted.…”

Section: Interpretation Of Stamps/mti Processing Resultsmentioning

confidence: 55%

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Investigation of Potential Volcanic Risk from Mt. Baekdu by DInSAR Time Series Analysis and Atmospheric Correction

et al. 2017

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“…Atmospheric signals have been removed through temporal and spatial filtering operations (Ferretti et al 2000Charef et al, 2012. Indeed, the algorithm uses two atmospheric filters, high-pass and low-pass, to correct atmospheric effects and to smooth the temporal signature of the displacement by respecting certain physical properties of the atmosphere (Kim et al 2014;Loesch and Vasit Sagan 2018). The low-pass atmospheric filter eliminates atmospheric effects that are spatially distributed while the high-pass atmospheric filter suppresses atmospheric effects that are temporally distributed.…”

Section: Inversion Second Stepmentioning

confidence: 99%

Application of the SBAS-DInSAR technique for deformation monitoring in Tunis City and Mornag plain

Chaabani

Deffontaines

2020

Geomatics, Natural Hazards and Risk

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The ground deformation phenomena are the result of the application of natural stress (tectonic) or anthropogenic stress (overexploitation of groundwater, embankment) on the soil. The land deformation may cause several impacts on the environment and human life. A good understanding of the deformation behaviour of the soil is essential to mitigate risks on the infrastructure and environment. In this study, a radar interferometry is carried out to analyse the mobility of an urban and suburban area of Greater Tunis region. The interferometric synthetic aperture radar (SAR) technique has been proven to be an effective methodology for detecting and monitoring soil displacement with millimetre accuracy and also, improving our understanding of the current deformations in the study area. Indeed, the application of differential SAR interferometry made it possible to determine the origin of the surface deformations related to natural or anthropic phenomena. In this paper, the interferometric method of small baseline subset (SBAS) developed by Berardino et al. 2002has been chosen, in order to monitor the spatial and temporal pattern of the deformation phenomena in Greater Tunis region. The analysis of Envisat ASAR (2003)(2004)(2005)(2006)(2007), descending satellite orbit) and Sentinel 1B (2016-2018, ascending satellite orbit) SAR data allowed us to create deformation velocity maps associated with line of sight displacement time series. The results obtained by this method showed the existence of subsidence phenomenon in the urban areas (Tunis City) as well as in the rural areas (Mornag plain). In the first site (Tunis City), the subsidence rate reaches up to 13.98 mm/year and 19 mm/year during 2003-2007 and 2016-2018, respectively. The ground deformation that is detected around the region of Tunis Lake and Sebkhet Essijoumi, is probably due to the nature of the highly compressible and thickness alluvial deposits and whose substratum depth sometimes reaches more than 60 m. In the second studied site, ground subsidence was identified in the whole plain of Mornag. Indeed, the comparison between piezometric data and time series deformations shows that the trend of soil subsidence is coherent with the dynamic change in groundwater levels. Furthermore, the analysis ARTICLE HISTORY

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“…The magmatic activity will bring about surface deformation in the volcanic regions [27][28][29]. Thus, besides the geophysical methods, the surface deformation is one of the important ways to indirectly monitor the magmatic activity of the magma chamber [30][31][32][33][34][35]. Since 2002, GPS and leveling surveys have been used to monitor the surface deformation in the Changbaishan volcano [36].…”

Section: Introductionmentioning

confidence: 99%

Time Series Surface Deformation of Changbaishan Volcano Based on Sentinel-1B SAR Data and Its Geological Significance

et al. 2022

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Monitoring the surface deformation is of great significance, in order to explore the activity and geophysical features of the underground deep pressure source in the volcanic regions. In this study, the time series surface deformation of the Changbaishan volcano is retrieved via Sentinel-1B SAR data, using the SBAS-InSAR method. The main results are as follows. (1) The mean surface deformation velocity in the Changbaishan volcano is uplifted as a whole, while the uplift is locally distributed, which shows a strong correlation with faults. (2) The time series surface deformation of the Changbaishan volcano indicates an apparently seasonal change. (3) The cumulative surface deformation shows a strong correlation with the maximal magnitude and number of annual earthquakes, and it is likely dominated by the maximal magnitude of the annual earthquakes. (4) The single Mogi source model is appropriate to evaluate the deep pressure source in the Changbaishan volcano, constrained by the calculated surface deformation. The optimal estimated depth of the magma chamber is about 6.2 km, and the volume is increased by about 3.2 × 106 m3. According to the time series surface deformation, it is concluded that the tectonic activity and faults, related to the deep pressure source, are pretty active in the Changbaishan volcano.

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Ground deformation tracking over Mt. Baekdu: A pre-evaluation of possible magma recharge by D-InSAR analysis

Cited by 6 publications

References 15 publications

Investigation of Potential Volcanic Risk from Mt. Baekdu by DInSAR Time Series Analysis and Atmospheric Correction

Investigation of Potential Volcanic Risk from Mt. Baekdu by DInSAR Time Series Analysis and Atmospheric Correction

Application of the SBAS-DInSAR technique for deformation monitoring in Tunis City and Mornag plain

Time Series Surface Deformation of Changbaishan Volcano Based on Sentinel-1B SAR Data and Its Geological Significance

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