Prospects of the FDTD modeling tool gprMax for imaging of ice wedges

Bricheva, S. S.; Schennen, Stephan; Stanilovskaya, Julia

doi:10.1109/iwagpr.2017.7996093

Cited by 2 publications

(1 citation statement)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Numerical modelling seems the most appropriate tool to focus solely on various aspects and understand each aspect's contribution to the finally obtained result. It has been used in several scientific studies focusing on complex and problematic objects of GPR investigations, like ice wedges (Bricheva et al, 2017;Schennen et al, 2017), landmines (Giannakis et al, 2016), precast concrete elements (Campo, 2019), or complex geomorphological structures (Koyan and Tronicke, 2020). Very few studies address the numerical modelling of GPR patterns on faults (Verma, 2007;Ercoli et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of ground‐penetrating radar data for studying the geometry of fault zone

Bricheva

Dubrovin

Лунина

et al. 2021

Near Surface Geophysics

View full text Add to dashboard Cite

Palaeoseismology studies the footprints of ancient earthquakes to improve the knowledge about the modern seismicity of the territory. A ground-penetrating radar (GPR), among other geophysical methods, is used for quick determination of shallow stratigraphy -displaced, oblique layers within the fault zone. GPR data interpretation from diverse and complex reflection patterns of the fault zone heavily depends on the interpreter's experience. The range of different fault zone parameters in which this method can be successfully applied has not yet been investigated. We used a numerical simulation of GPR data to determine how GPR images the elements of faults (fault plane, hanging wall, footwall) in comparison with other reflections. Furthermore, we studied which parameters have the most significant impact on GPR wave patterns. We performed a series of numerical models of a fault, changing its geometry with increasing complexity from elementary models to realistic ones. The resulting synthetic profiles allowed finding specific GPR signatures from the fault plane, the hanging wall and the footwall. We collected field GPR data from two different fault zones and examined them for verification.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical simulation of ground‐penetrating radar data for studying the geometry of fault zone

Bricheva

Dubrovin

Лунина

et al. 2021

Near Surface Geophysics

View full text Add to dashboard Cite

show abstract

Ground Penetrating Radar Survey of Arctic Polygonal Wedge Structures

Edemsky,

Tumskoy,

Prokopovich

2024

Russian Geology and Geophysics

View full text Add to dashboard Cite

—Ground penetrating radar method which was applied to study distribution and occurrence of polygonal wedge ice along with other structural features in the near-surface layers of the permafrost section on the western coast of the Taymyr Peninsula and Kotelny Island. The polygonal microrelief in the region under study is at a descending stage of development and is mainly placed in sand-gravel deposits and silts with rare interlayers of light gray sands. The ground penetrating radar (GPR) data were analyzed and interpreted by modeling of the polygonal wedge ice structures in gprMax – a software that simulates electromagnetic wave propagation. The effect of the seasonally thawed layer on the measurement results was assessed, and the results of ground penetrating radar sounding of the polygonal microrelief were interpreted. The ground penetrating radar studies performed in this work indicate that unmelted lower ends of ice wedges preserved under pseudomorphs can be observed in some spots. Repeated wedge structures of higher generation, which do not appear on the surface, have been identified. The propagation velocity of electromagnetic waves in the studied sediments was determined.

show abstract

Prospects of the FDTD modeling tool gprMax for imaging of ice wedges

Cited by 2 publications

References 8 publications

Numerical simulation of ground‐penetrating radar data for studying the geometry of fault zone

Numerical simulation of ground‐penetrating radar data for studying the geometry of fault zone

Ground Penetrating Radar Survey of Arctic Polygonal Wedge Structures

Contact Info

Product

Resources

About