Results 21 to 30 of about 151 (126)
Research and Construction of a Global Hexagonal Marine Gravity Gradient Reference Map for Navigation
Geofluids, Volume 2023, Issue 1, 2023., 2023 A high‐precision marine gravity gradient reference map is key to enabling underwater gravity gradient matching navigation. At present, the construction of the reference maps is based on quadrilateral geographic grids. However, quadrilateral grids lead to detriangulation at high latitudes, which limits the global applicability of such maps to underwater
Huang Yan +8 more
wiley +1 more source
Water Resources Research, Volume 58, Issue 11, November 2022., 2022 Abstract The water surface slope (WSS) of rivers is essential for estimating flow velocity and discharge. It is also helpful as a correction applied to range measurements of satellite altimetry missions to derive water level time series at a virtual station.
Daniel Scherer +3 more
wiley +1 more source
Gravity‐Derived Antarctic Crustal Thickness Based on the Gauss‐FFT Method
Geochemistry, Geophysics, Geosystems, Volume 23, Issue 8, August 2022., 2022 Abstract The information on crustal thickness in Antarctica can provide significant constraints on its crustal deformation and tectonic evolution. To generate reliable images of crustal features, we investigate the model of Moho depth and crustal thickness beneath Antarctica by applying the Bott‐Parker's formulas based on the Gauss‐fast Fourier ...
Fei Ji, Leyuan Wu, Qiao Zhang
wiley +1 more source
Boletín de Ciencias de la Tierra, 2021 El presente trabajo busca contribuir con un análisis gravimétrico del volcán La Malinche, tomando como referencias 39 puntos definidos dentro del área natural protegida de su Parque Nacional, calculando anomalías de aire libre y Bouguer, así como la ...
Rogelio Ramos Aguilar +7 more
doaj +1 more source
A Thermo‐Compositional Model of the African Cratonic Lithosphere
Geochemistry, Geophysics, Geosystems, Volume 23, Issue 3, March 2022., 2022 Abstract Recently, the continually increasing availability of seismic data has allowed high‐resolution imaging of lithospheric structure beneath the African cratons. In this study, S‐wave seismic tomography is combined with high resolution satellite gravity data in an integrated approach to investigate the structure of the cratonic lithosphere of ...
N.‐P. Finger +4 more
wiley +1 more source
Journal of Geophysical Research: Solid Earth, Volume 126, Issue 12, December 2021., 2021 Abstract Integration of multiple geophysical data is a key practice to reduce model uncertainties and enhance geological interpretations. Electrical resistivity models resulting from inversion of marine magnetotelluric (MT) data, often lack depth resolution of lithological boundaries and distinct information for shallow model parts.
G. Franz +4 more
wiley +1 more source
An Evaluation of Recent Global Geopotential Models for Strip Area Project in Turkey
Earth Sciences Research Journal, 2016 The aim of this study is to present the evaluations based on comparisons of geoid heights that are computed from several global geopotential models (GGMs) and the GNSS/levelling data.
Serkan Doganalp
doaj +1 more source
Retracted: True Gravity in Atmospheric Ekman Layer Dynamics
Journal of Geophysical Research: Atmospheres, Volume 126, Issue 20, 27 October 2021., 2021 Abstract True gravity is a three‐dimensional vector field, g(λ, φ, z) = igλ + jgφ + kgz, with (λ, φ, z) the (longitude, latitude, height) and (i, j, k) the corresponding unit vectors. The longitudinal‐latitudinal component of the true gravity, gh = igλ+jgφ, is neglected completely in meteorology through using the standard gravity (−g0k, g0 = 9.81 m/s2)
Peter C. Chu
wiley +1 more source
Assessment of HY-2A GM data by deriving the gravity field and bathymetry over the Gulf of Guinea
Earth, Planets and Space, 2020 Nine cycles of Haiyang-2A (HY-2A) IGDR (Interim Geophysical Data Record) data are used to derive gravity products over the Gulf of Guinea (15° W–5° E, 4° S–4° N).
Xiaoyun Wan +2 more
doaj +1 more source
Accuracy assessment and comparison of interpolation methods on geoid models [PDF]
Geodetski Vestnik, 2018 In this paper the accuracy of 6 spatial interpolation methods on geoid grid models are tested and compared: Inverse Distance Weighting, Kriging, Minimum Curvature, Natural Neighbour, Radial Basis Function and Moving Average.
Marko Radanović, Tomislav Bašić
doaj +1 more source