Results 1 to 10 of about 203 (193)

Non-Invasive Methodological Approach to Detect and Characterize High-Risk Sinkholes in Urban Cover Evaporite Karst: Integrated Reflection Seismics, PS-InSAR, Leveling, 3D-GPR and Ancillary Data. A NE Italian Case Study

open access: yesRemote Sensing, 2020
Sinkholes linked to cover evaporite karst in urban environments still represent a challenge in terms of their clear identification and mapping considering the rehash and man-made structures.
Alice Busetti   +5 more
doaj   +3 more sources

Investigating the Norse Harbour of Igaliku (Southern Greenland) Using an Integrated System of Side-Scan Sonar and High-Resolution Reflection Seismics

open access: yesRemote Sensing, 2019
This study presents the results of a marine geophysical survey performed in the Igaliku fjord in southern Greenland in order to understand the harbour setting of the former Norse settlement Garðar (modern Igaliku).
Dennis Wilken   +5 more
doaj   +3 more sources

Reflection seismic thermometry

open access: yesBasin Research, 2021
AbstractThe North Viking Graben (NVG) is part of the mature North Sea Basin petroleum province and designated as a major carbon storage basin for NW Europe. It has been extensively drilled over five decades with an abundance of well and seismic data in the public domain.
Arka Dyuti Sarkar, Mads Huuse
openaire   +4 more sources

Evidence for a grounding line fan at the onset of a basal channel under the ice shelf of Support Force Glacier, Antarctica, revealed by reflection seismics [PDF]

open access: yesThe Cryosphere, 2021
Curvilinear channels on the surface of an ice shelf indicate the presence of large channels at the base. Modelling studies have shown that where these surface expressions intersect the grounding line, they coincide with the likely outflow of subglacial ...
C. Hofstede   +13 more
doaj   +1 more source

Dynamics of hydrological and geomorphological processes in evaporite karst at the eastern Dead Sea – a multidisciplinary study [PDF]

open access: yesHydrology and Earth System Sciences, 2021
Karst groundwater systems are characterized by the presence of multiple porosity types. Of these, subsurface conduits that facilitate concentrated, heterogeneous flow are challenging to resolve geologically and geophysically. This is especially the case
D. Al-Halbouni   +13 more
doaj   +1 more source

Geophysical analysis of an area affected by subsurface dissolution – case study of an inland salt marsh in northern Thuringia, Germany [PDF]

open access: yesSolid Earth, 2022
The subsurface dissolution of soluble rocks can affect areas over a long period of time and pose a severe hazard. We show the benefits of a combined approach using P-wave and SH-wave reflection seismics, electrical resistivity tomography, transient ...
S. H. Wadas   +12 more
doaj   +1 more source

Acoustic Mapping of Submerged Stone Age Sites—A HALD Approach

open access: yesRemote Sensing, 2021
Acoustic response from lithics knapped by humans has been demonstrated to facilitate effective detection of submerged Stone Age sites exposed on the seafloor or embedded within its sediments.
Ole Grøn   +18 more
doaj   +1 more source

Ground Penetrating Radar Measurements in Shallow Water Environments—A Case Study

open access: yesRemote Sensing, 2022
In this study, we investigate GPR measurements in freshwater of less than 5 m at four different locations to derive rules of thumb in terms of depth penetration, resolution, and material contrasts of the method for 200 and 400 MHz antennas under field ...
Annika Fediuk   +3 more
doaj   +1 more source

Structural analysis of S-wave seismics around an urban sinkhole: evidence of enhanced dissolution in a strike-slip fault zone [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2017
In November 2010, a large sinkhole opened up in the urban area of Schmalkalden, Germany. To determine the key factors which benefited the development of this collapse structure and therefore the dissolution, we carried out several shear-wave ...
S. H. Wadas   +4 more
doaj   +1 more source

Investigating the TCDP Drill Site Using Deep and Shallow Reflection Seismics

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2007
The 1999 Chi-Chi earthquake (Mw = 7.6), Taiwan, reactivated the 105 km long, NS trending Chelungpu fault causing extraordinary surface ruptures. The distribution of the ruptures was quite heterogeneous with the largest displacement (up to 12 m) occurring
Chien-Ying Wang   +3 more
doaj   +2 more sources

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