Results 1 to 10 of about 108,603 (294)
Three-Dimensional Gravity Inversion Based on Attention Feature Fusion [PDF]
SensorsThree-dimensional gravity inversion is a process of obtaining the location, shape, and physical property parameters of underground anomaly sources using gravity anomaly data observed on the surface.
Chen Chen +4 more
doaj +2 more sources
Influence of gravity waves and tides on mesospheric temperature inversion layers: simultaneous Rayleigh lidar and MF radar observations [PDF]
Annales Geophysicae, 2008 Three nights of simultaneous Rayleigh lidar temperature measurements over Gadanki (13.5° N, 79.2° E) and medium frequency (MF) radar wind measurements over Tirunelveli (8.7° N, 77.8° E) have been analyzed to illustrate the possible ...
S. Sridharan +2 more
doaj +4 more sources
Nonlocal gravity with worldline inversion symmetry [PDF]
Journal of High Energy Physics, 2020 We construct a quadratic curvature theory of gravity whose graviton propagator around the Minkowski background respects wordline inversion symmetry, the particle approximation to modular invariance in string theory.
Steven Abel +2 more
doaj +6 more sources
Parallel Processing For Gravity Inversion [PDF]
, 2015 Proceedings of: Second International Workshop on Sustainable Ultrascale Computing Systems (NESUS 2015). Krakow (Poland), September 10-11, 2015.In this paper results of recent updates of a simple algorithm for the inversion of gravity anomalies for 3D ...
Frasheri, Neki
core +3 more sources
Binary structure constrained gravity inversion based on seismic first arrival travel time data
Frontiers in Earth Science, 2023 Gravity exploration method is one of the important methods for deep mineral resource exploration, but gravity data inversion has limited resolution ability in the vertical direction.
Xinhui Deng +2 more
doaj +1 more source
An Investigation of lp-Norm Minimization for the Artifact-Free Inversion of Gravity Data
Remote Sensing, 2023 The l2-norm minimization is a common means for the 3D inversion of gravity data. The unconstrained l2-norm inversion will produce a smooth solution, which contains redundant structures and artifacts. Positivity-constrained l2-norm inversion can eliminate
Zelin Li, Changli Yao
doaj +1 more source
Observation of Gravity Wave Vertical Propagation through a Mesospheric Inversion Layer
Atmosphere, 2022 The impact of a mesospheric temperature inversion on the vertical propagation of gravity waves has been investigated using OH airglow images and ground-based Rayleigh lidar measurements carried out in December 2017 at the Haute-Provence Observatory (OHP,
Thurian Le Du +3 more
doaj +1 more source
Remote Sensing, 2022 Accurate and highly precise gravity gradient data are an important component of, for example, gravity field modeling, seabed topography inversion, and resource exploration. However, high-precision gravity gradient data are difficult to obtain. To address
Bei Liu +6 more
doaj +1 more source
Bathymetry inversion using the deflection of the vertical: A case study in South China Sea
Geodesy and Geodynamics, 2022 The deflection of the vertical is one of the essential products of altimetry. However, unlike gravity and vertical gravity gradients, it is seldom used in bathymetry inversion.
Xiaoyun Wan +5 more
doaj +1 more source
Constraining Inverse-Curvature Gravity with Supernovae [PDF]
Physical Review Letters, 2006 We show that the current accelerated expansion of the Universe can be explained without resorting to dark energy. Models of generalized modified gravity, with inverse powers of the curvature can have late time accelerating attractors without conflicting with solar system experiments. We have solved the Friedman equations for the full dynamical range of
Mena, Olga +2 more
openaire +6 more sources