Detection of Land Subsidence in Nam Dinh Coast by Dinsar Analyses

Quang, Nguyen Hao; Takewaka, Satoshi

doi:10.1007/978-981-15-0291-0_175

Cited by 8 publications

(3 citation statements)

References 16 publications

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“…The DInSAR technique is largely exploited in many Earth science fields, such as, for example, landslide monitoring [7,[22][23][24], land subsidence [7,25,26] and volcanic environment problematics [27][28][29][30].…”

Section: Differential Synthetic Aperture Radar Interferometry (Dinsar)mentioning

confidence: 99%

Implementing the European Space Agency’s SentiNel Application Platform’s Open-Source Python Module for Differential Synthetic Aperture Radar Interferometry Coseismic Ground Deformation from Sentinel-1 Data

Occhipinti,

Carboni,

Amorini

et al. 2023

Remote Sensing

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Differential SAR Interferometry is a largely exploited technique to study ground deformations. A key application is the detection of the effects promoted by earthquakes, including detailed variations in ground deformations at different scales. In this work, an implemented Python script (Snap2DQuake) based on the “snappy” module by SNAP software 9.0.8 (ESA) for the processing of satellite imagery is proposed. Snap2DQuake is aimed at producing detailed coseismic deformation maps using Sentinel-1 C-band data by the DInSAR technique. With this alternative approach, the processing is simplified, and several issues that may occur using the software are solved. The proposed tool has been tested on two case studies: the Mw 6.4 Petrinja earthquake (Croatia, December 2020) and the Mw 5.7 to Mw 6.3 earthquakes, which occurred near Tyrnavós (Greece, March 2021). The earthquakes, which occurred in two different tectonic contexts, are used to test and verify the validity of Snap2DQuake. Snap2DQuake allows us to provide detailed deformation maps along the vertical and E-W directions in perfect agreement with observations reported in previous works. These maps offer new insights into the deformation pattern linked to earthquakes, demonstrating the reliability of Snap2DQuake as an alternative tool for users working on different applications, even with basic coding skills.

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Section: Differential Synthetic Aperture Radar Interferometry (Dinsar)mentioning

confidence: 99%

Implementing the European Space Agency’s SentiNel Application Platform’s Open-Source Python Module for Differential Synthetic Aperture Radar Interferometry Coseismic Ground Deformation from Sentinel-1 Data

Occhipinti,

Carboni,

Amorini

et al. 2023

Remote Sensing

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“…In Du et al, ground subsidence in Leizhou Peninsula (China) is estimated at 32 mm per year [20]. N guyen Hao & Takewaka have estimated the rate of ground subsidence in Nam Dinh between -21 to +2.5 per year [21]. Zhao et al, estimated ground displacement in the coastal areas of Shanghai, China at about -30 cm per year [22].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Impacts of Earthquake in Ezgele, Kermanshah (Iran) (Occurred on 2017/11/12)

2024

Curr Res Env Sci Eco Letters

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Earthquake is one of the most important environmental hazards associated with massive casualties and pecuniary losses. The earthquake of November 12th, 2017 in Ezgele, Kermanshah has been one of the most destructive earthquakes ever happened in Iran; in this study, considering the importance of the issue, we have evaluated its tangible and intangible effects. Our research data include radar images from Sentinel 1, statistical information on earthquake stress and damage estimates obtained via extensive fieldworks. ARCGIS and GMT software were used as research tools. Interferometric synthetic aperture radar (In SAR) was also used to analyze data. To achieve the desired goals, first the tangible effects of earthquakes were estimated using results obtained from fieldwork and documentary data from relevant organizations. Then, radar images were used to evaluate the intangible effects of earthquakes and the effects of stresses on urban areas, plains and slopes. The obtained results show that longitudinal cracks, slips and building collapses have been the most significant reported tangible impacts. Also, the most important intangible impacts of the earthquake across the study area are +917 to -613 mm vertical displacement, in cities, plains and slopes, which can cause a lot of damage in the near future.

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“…Climate change-related geohazards on the coast include erosion, inundation and flooding, saline intrusion, and sea dike instability. Sea level rise, land subsidence, and tropical cyclones are strengthening the coastal erosion [12]. Each year the exceeding rate of erosion due to sea level rise is 0.1-0.3 m/y.…”

Section: Introductionmentioning

confidence: 99%

Nearshore Topographical Changes and Coastal Stability in Nam Dinh Province, Vietnam

Hung

Duc

Quynh³

et al. 2020

JMSE

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Recently, the coastal zone in Vietnam has experienced more intensive sea attacks due to severe typhoons, climate change, and humsection an activities. Sea level rise has been recorded all along the coast. Moreover, sand exploitation and engineering measures have significantly changed local reliefs and led to apparent sea water level change on the coast of Nam Dinh province. Coastal erosion and sea dike failures have become a serious problem in the region. The site investigation of nearshore topography shows the recent changes to the coast. Hydrodynamic models show that changes of relief and increased wave attacks on dikes. The main reason for sea dike instability is soil erosion due to wave topping; meanwhile, the dikes are stable in terms of sliding. The coast should be reinforced with properly constructed revetments, wave topping preventive measures, and nearshore sand exploitation should be halted.

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Detection of Land Subsidence in Nam Dinh Coast by Dinsar Analyses

Cited by 8 publications

References 16 publications

Implementing the European Space Agency’s SentiNel Application Platform’s Open-Source Python Module for Differential Synthetic Aperture Radar Interferometry Coseismic Ground Deformation from Sentinel-1 Data

Implementing the European Space Agency’s SentiNel Application Platform’s Open-Source Python Module for Differential Synthetic Aperture Radar Interferometry Coseismic Ground Deformation from Sentinel-1 Data

Evaluating the Impacts of Earthquake in Ezgele, Kermanshah (Iran) (Occurred on 2017/11/12)

Nearshore Topographical Changes and Coastal Stability in Nam Dinh Province, Vietnam

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