Results 31 to 40 of about 108,603 (294)

Comparison of Current Gravity Estimation and Determination Models [PDF]

, 2018
This paper will discuss the history of gravity estimation and determination models while analyzing methods that are in development. Some fundamental methods for calculating the gravity field include spherical harmonics solutions, local weighted ...
Hillman, Kyle
core   +1 more source

Inversion of Seafloor Topography in the Gulf of Mexico Based on Convolutional Neural Network Integrated With Multisource Gravity Data and Bathymetric Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Large-scale, high-precision seabed topography data serves as the foundation for scientific research on Earth’s shape and geological structure. Satellite altimetry data combined with classical gravity field inversion methods are important means for
Liyuan Wei, Meng Yang, Xiaodong Chen, Wei Feng, Min Zhong   +4 more
doaj   +1 more source

Effects of Interferometric Radar Altimeter Errors on Marine Gravity Field Inversion

Sensors, 2020
The traditional altimetry satellite, which is based on pulse-limited radar altimeter, only measures ocean surface heights along tracks; hence, leads to poorer accuracy in the east component of the vertical deflections compared to the north component ...
Xiaoyun Wan, Shuanggen Jin, Bo Liu, Song Tian, Weiya Kong, Richard Fiifi Annan   +5 more
doaj   +1 more source

Spherical Planting Inversion of GRAIL Data

Applied Sciences, 2023
In large-scale potential field data inversion, constructing the kernel matrix is a time-consuming problem with large memory requirements. Therefore, a spherical planting inversion of Gravity Recovery and Interior Laboratory (GRAIL) data is proposed using
Guangyin Lu, Dongxing Zhang, Shujin Cao, Yihuai Deng, Gang Xu, Yihu Liu, Ziqiang Zhu, Peng Chen   +7 more
doaj   +1 more source

Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium [PDF]

, 2018
The drillhole information from the Lontzen-Poppelsberg site has demonstrated three orebodies and has allowed the estimation of the extension of the lodes, their dip, and the location at the ground surface.
Chouteau, Michel, Dumont, Gaël, Evrard, Maxime, Francis, Olivier, Hermans, Thomas, Nguyen, Frédéric, Pirard, Eric   +6 more
core   +5 more sources

Application of gravity inversion technology in prediction of ultra-deep reservoirs： A case study of central Junggar Basin

Youqi dizhi yu caishoulu
There is great exploration potential for ultra-deep reservoirs in Junggar Basin， and reservoir prediction with seismic data is the main technical means of oil and gas exploration at present.
CHEN Xueguo, XIANG Peng, ZHANG Jianhua, BAN Li, WU Wei, GUO Tao, FENG Guozhi   +6 more
doaj   +1 more source

Gravity inversion for sub-ice shelf bathymetry: strengths, limitations, and insights from synthetic modeling [PDF]

The Cryosphere
Sub-ice-shelf bathymetry strongly influences ice shelf stability by guiding melt-inducing water masses and through pinning points that resist the flow of the overriding ice.
M. D. Tankersley, M. D. Tankersley, M. D. Tankersley, H. Horgan, H. Horgan, H. Horgan, F. Caratori Tontini, K. Tinto   +7 more
doaj   +1 more source

Computationally Effective Gravity Inversion Allows for High-Resolution Regional Density Modeling of Earth's Crust with the Inclusion of the Topography Layer

Russian Journal of Earth Sciences, 2022
The problem of inverting measured gravity data for large regions is of a great importance for planetary structure studies. Unfortunately, the usual methods of local gravity field inversion do not scale up well.
Martyshko Pyotr, Byzov Denis, Chernoskutov Aleksandr   +2 more
doaj   +1 more source

An Accelerated Algorithm for 3D Inversion of Gravity Data Based on Improved Conjugate Gradient Method

Applied Sciences, 2023
The 3D inversion algorithm for gravity data based on a smooth model constraint has been proven to yield a reasonable density distribution. However, as the amount of observed data and model parameters increases, the algorithm experiences issues with high ...
Shuai Zhou, Hongfa Jia, Tao Lin, Zhaofa Zeng, Ping Yu, Jian Jiao   +5 more
doaj   +1 more source

Implementation of the LANS-alpha turbulence model in a primitive equation ocean model [PDF]

, 2007
This paper presents the first numerical implementation and tests of the Lagrangian-averaged Navier-Stokes-alpha (LANS-alpha) turbulence model in a primitive equation ocean model.
Andrews, Aref, Beth A. Wingate, Boville, Bryan, Bryan, Böning, Chen, Chen, Chen, Cox, Darryl D. Holm, Dukowicz, Eckart, Foias, Gent, Germano, Geurts, Geurts, Geurts, Griffies, Griffies, Henning, Holm, Holm, Holm, Holm, Holton, Karsten, Mark R. Petersen, Marsden, Matthew W. Hecht, Meneveau, Petersen, Redi, Smith, Solomon, Veronis, Visbeck, Wingate, Zhao   +40 more
core   +2 more sources