Results 21 to 30 of about 522,020 (249)

Along-Track Geopotential Difference and Deflection of the Vertical from GRACE Range Rate: Use of GEOGRACE

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2016
We present a theory and numerical algorithm to directly determine the time-varying along-track geopotential difference and deflection of the vertical at the Gravity Recovery and Climate Experiment (GRACE) satellite altitude.
GRACE   +4 more
doaj   +1 more source

Gravity Survey of Mafic Rocks at Billdal [PDF]

open access: yes, 2021
Billdal in southwestern Sweden, is an area dominated by two main rock types, Askim granite and gabbro. Their density difference makes gravity survey an ideal method to help map the location of gabbro bodies which are not close to the surface.
Ekström Tormos, Felix
core  

Moving Average Filter untuk Memisahkan Efek Dangkal Anomali Gravitasi Time Lapse

open access: yesPrisma Sains: Jurnal Pengkajian Ilmu dan Pembelajaran Matematika dan IPA IKIP Mataram, 2019
[Title: Moving Average Filter for Time Lapse Gravity Anomaly Separation]. Interpretation of time-lapse gravity anomaly due to fluid injection in the reservoir is difficult when it mixed with shallow source anomalies. To solve the kind of problem, anomaly
Muhammad Zuhdi   +4 more
doaj   +1 more source

Integrated geophysical studies on the distribution of Quaternary biogenic gases in the Qaidam Basin, NW China

open access: yesPetroleum Exploration and Development, 2012
Quaternary biogenic gas fields in the Sanhu area of the Qaidam Basin are characterized by gentle structures, shallow burial, weak compaction, high porosity and great bulk thickness, which determine their unique geophysical anomalies, such as the locally ...
Hui YANG   +6 more
doaj   +1 more source

Comparative Study on Predicting Topography from Gravity Anomaly and Gravity Gradient Anomaly

open access: yesRemote Sensing, 2023
Owing to the dependence of algorithms on the measurement of ship soundings and geophysical parameters, the accuracy and coverage of topography still need to be improved. Previous studies have mostly predicted topography using gravity or gravity gradient,
Huan Xu   +5 more
doaj   +1 more source

Correlation between the Bouguer gravity anomaly and the TAIGER tomography of the Taiwan region

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2018
The Bouguer gravity anomaly derived from observed gravity data and calculated from a 3-D P-wave velocity model were used to investigate the compatibility between the two to understand the crust structure of the Taiwan region.
Yu-Tsung Lo   +2 more
doaj   +1 more source

Sum Vector-Difference-Based Matching Area Selection Method for Underwater Gravity-Aided Navigation

open access: yesIEEE Access, 2019
For underwater gravity matching navigation, matching area selection has a significant impact on navigation accuracy. Since the changes of gravity anomaly between grids of gravity background map is different, when the underwater vehicle passes through the
Bo Wang   +3 more
doaj   +1 more source

New Bouguer Gravity Maps of Venezuela: Representation and Analysis of Free-Air and Bouguer Anomalies with Emphasis on Spectral Analyses and Elastic Thickness

open access: yesInternational Journal of Geophysics, 2012
A new gravity data compilation for Venezuela was processed and homogenized. Gravity was measured in reference to the International Gravity Standardization Net 1971, and the complete Bouguer anomaly was calculated by using the Geodetic Reference System ...
Javier Sanchez-Rojas
doaj   +1 more source

Structural map of Sulawesi derives from gravity data and its implications for geothermal systems [PDF]

open access: yesE3S Web of Conferences, 2023
Gravity satellites are one of the alternatives to conducting preliminary surveys because the cost of exploring a large area using conventional gravity methods is very expensive and takes a lot of time.
Umar Emi Prasetyawati   +3 more
doaj   +1 more source

Bouguer Anomaly of Central Cebu, Philippines

open access: yesJournal of Maps, 2020
Cebu Island in Central Philippines consists of a Cretaceous basement complex capped by mostly Tertiary sedimentary units. Recent mapping conducted in Central Cebu revealed limited exposures of lithologies, especially those comprising the basement complex.
Leo Armada   +7 more
doaj   +1 more source

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