Results 11 to 20 of about 1,557 (307)
Oil & Gas Science and Technology, 2020 In an Enhanced Oil Recovery (EOR) process, one of the main difficulties is to quickly evaluate if the injected chemical products actually improve oil recovery in the reservoir.
Dubos-Sallée Noalwenn +5 more
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Shallow shear-wave reflection seismics in the tsunami struck Krueng Aceh River Basin, Sumatra [PDF]
Advances in Geosciences, 2008 As part of the project "Management of Georisk" (MANGEONAD) of the Federal Institute for Geosciences and Natural Resources (BGR), Hanover, high resolution shallow shear-wave reflection seismics was applied in the Indonesian province Nanggroe ...
U. Polom, I. Arsyad, H.-J. Kümpel
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Potential Use of Time-Lapse Surface Seismics for Monitoring Thawing of the Terrestrial Arctic [PDF]
Applied Sciences, 2020 The terrestrial Arctic is warming rapidly, causing changes in the degree of freezing of the upper sediments, which the mechanical properties of unconsolidated sediments strongly depend upon.
Helene Meling Stemland +2 more
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Analytical fundamentals of migration in reflection seismics
Open Geosciences, 2016 We consider migration in reflection seismics from a completely analytical perspective. We review the basic geometrical ray-path approach to understanding the subject of migration, and discuss the limitations of this method.
Ray Arnab K.
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Glacial hydraulic tremor on Rhonegletscher, Switzerland
Journal of Glaciology, 2023 Glacial hydraulic tremor (GHT) can be monitored to observe changes in location and distribution of water flow beneath glacial ice, allowing the spatiotemporal evolution of subglacial hydrology to be studied continuously and remotely.
Elisabeth Clyne +6 more
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Fractal Seismicity and Seismic Risk [PDF]
Izvestiya, Physics of the Solid Earth, 2020 Recently, attempts have been made to take into account the fractal properties of seismicity when mapping the long-term rate of earthquakes. The paper touches upon the theoretical aspects of fractality and provides a critical analysis of its applications to the problems of seismic ...
openaire +2 more sources
Bathymetry and bed conditions of Lago Subglacial CECs, West Antarctica
Journal of Glaciology, 2023 Although over 600 Antarctic subglacial lakes have been identified using radar and satellite observations, the bathymetry and bed properties, which are key to understanding conditions within the lake, have been determined in very few localities.
A. M. Brisbourne +6 more
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Characterising ice slabs in firn using seismic full waveform inversion, a sensitivity study
Journal of Glaciology, 2023 The density structure of firn has implications for hydrological and climate modelling, and ice-shelf stability. The structure of firn can be evaluated from depth models of seismic velocity, widely obtained with Herglotz–Wiechert inversion (HWI), an ...
Emma Pearce +7 more
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Seismic observations of a complex firn structure across the Amery Ice Shelf, East Antarctica
Journal of Glaciology, 2021 We use seismic refraction data to investigate the firn structure across a suture zone on the Amery Ice Shelf, East Antarctica, and the possible role of glacier dynamics in firn evolution.
Hannes Hollmann +4 more
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Seismicity and Principal Seismic Effects [PDF]
Geophysical Journal International, 1970 Summary A statistical method is given for estimating the total effect of earthquakes over a given period. The effect may be measured by return-time, shaking or damage, and may be exerted at a point (e.g. building), on a linear object (e.g. road), or on an area. For each type of effect there are given formulae for the statistical distribution,
G. M. Molchan +2 more
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