Results 31 to 40 of about 6,478 (164)

Preliminary Investigation of Wavefield Depth Extrapolation by Two-Way Wave Equations

open access: yesInternational Journal of Geophysics, 2012
Most of the wavefield downward continuation migration approaches are relying on one-way wave equations, which move the seismic energy always in one direction along depth. The one-way downward continuation migrations only use the primaries for imaging and
Bangyu Wu, Ru-Shan Wu, Jinghuai Gao
doaj   +1 more source

Downward continuation of airborne gravimetry data based on Poisson integral iteration method

open access: yesGeodesy and Geodynamics, 2017
The research and application of airborne gravimetry technology has become one of the hottest topics in gravity field in recent years. Downward continuation is one of the key steps in airborne gravimetry data processing, and the quality of continuation ...
Xiaogang Liu   +3 more
doaj   +1 more source

Three-dimensional direct gravity inversion for Moho and basement depths of the Tuchinh-Vungmay basin, offshore southeast Vietnam, incorporating a lithosphere thermal gravity anomaly correction

open access: yesGeocarto International, 2023
This paper presents the determination of the Moho and basement depths of Tuchinh-Vungmay basin (TCVMB) offshore southeastern Vietnam by the three dimension direct gravity inversion.
Trung Nguyen Nhu   +2 more
doaj   +1 more source

Computational Algorithm for Downward Continuation of Gravity Anomalies

open access: yesLobachevskii Journal of Mathematics
17 pages, 11 ...
D. Kh. Ivanov   +2 more
openaire   +2 more sources

Analysis of Alabama Airborne Gravity at Three Altitudes: Expected Accuracy and Spatial Resolution from a Future Tibetan Airborne Gravity Survey

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2013
In situ airborne gravity data at altitudes of 11, 6.3, and 1.7 km over a smooth area of Alabama are used to assess gravity accuracy and errors in upward and downward continuations. Analysis of the Alabama free-air anomaly gravity data at crossover points
Chi-Hsun Huang   +4 more
doaj   +1 more source

Determination of structural characteristics of Tuzgölü Fault Zone using gravity and magnetic methods, Central Anatolia

open access: yesBulletin of the Mineral Research and Exploration, 2020
The anomaly maps and amplitude and wavelength changes of the anomalies obtained from gravity and magnetic methods can provide to identify fault traces in the underground.
Bahar Di̇nçer, Veysel Işık
doaj   +1 more source

High-resolution seismic imaging of shallow structure at proposed IODP drilling sites, Kane oceanic core complex, Mid-Atlantic Ridge

open access: yesSolid Earth Sciences, 2023
Two 500-m-deep holes are proposed to be drilled at the Kane oceanic core complex (OCC), one aimed at a serpentinized peridotite massif and the other at a gabbroic body.
Wenxin Xie   +3 more
doaj   +1 more source

Accuracy assessment of test flights using the Turnkey Airborne Gravity System over Alabama in 2008

open access: yesJournal of Geodetic Science, 2013
The National Geodetic Survey (NGS) performed a few test flights using Micro-g’s Turnkey Airborne Gravity System (TAGS) at altitude of 1700, 6300 and 11000 meters over Alabama in 2008.
Wang Y.M.   +5 more
doaj   +1 more source

Analysis of the Magnetic Anomalies of Buried Archaeological Ovens of Aïn Kerouach (Morocco)

open access: yesInternational Journal of Geophysics, 2018
Aïn Kerouach is one of the most important archaeological sites in the northern part of Morocco. The main buried archaeological ruins in this area were surveyed in 1977 using magnetic prospecting. This survey highlights the mean anomalies that are related
Abderrahim Ayad, Saâd Bakkali
doaj   +1 more source

A Method for Quantitative Interpretation of Stationary Thermal Fields for Layered Media

open access: yesGeosciences, 2020
A new method to solve thermal conjugacy problems is presented for layered models with a thermal conductivity jump at their boundaries. The purpose of this method is to approximate the inverse thermal conductivity coefficient, which has breaks, by using a
Igor V. Ladovskii   +3 more
doaj   +1 more source

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