Results 41 to 50 of about 1,527 (198)

The Role of the Overriding Plate and Mantle Viscosity Structure on Deep Slab Morphology

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Using 2D numerical subduction models, we compare the morphology of deep slabs in the presence of an oceanic or continental overriding plate and viscosity jumps at either 660 km or 1,000 km depth as suggested by the latest geoid inversions. We demonstrate that a continental plate, combined with a 1,000 km depth viscosity increase, promotes slab
Antoniette Greta Grima   +2 more
wiley   +1 more source

Pemodelan Geoid Lokal Universitas Diponegoro Semarang Studi Kasus: Universitas Diponegoro Semarang [PDF]

open access: yes, 2016
Geoid is called as an earth model which approach to the real earth surface. Furthermore, geoid is an gravity equipotential field or nivo field which coincide to the mean sea level and not disturb field (?) Geoid is referenced to ellipsoid because ...
Rakapuri, G. (Galih)   +2 more
core  

Effects of the Last Quaternary Glacial Forebulge on Vertical Land Movement, Sea‐Level Change, and Lithospheric Stresses

open access: yesReviews of Geophysics, Volume 63, Issue 3, September 2025.
Abstract A glacial forebulge is a bending‐related upheaval of the lithosphere outside a glaciated area that co‐occurs to the depression of the lithosphere below an ice sheet. The forebulge of the last glaciation attracted attention over more than one century, but quantitative descriptions on the geometry of the forebulge are rare.
Christian Brandes   +4 more
wiley   +1 more source

Density modeling of the Escollos Alijos Seamount from inversion of its geoid undulation anomaly

open access: yesGeofísica Internacional, 2014
El Monte Marino Alijos se localiza en el Océano Pacífico nororiental a unos 300 km de la Península de Baja California. La edad y el análisis geoquímico de las rocas volcánicas que coronan este gran monte marino indican magmatismo reciente, que ha ...
Juan García-Abdeslem
doaj   +1 more source

Determination of Nigerian Geoid Undulations from Spherical Harmonic Analysis

open access: yesApplied Physics Research, 2011
Geoid undulation has been determined for Nigeria in order to demonstrate its relationship with topography and the dynamic structure of the Earth’s interior. Spherical harmonic expansion using the Earth Gravitational Model 2008 (EGM2008) referenced to the WGS84 (World Geodetic System 1984) with coefficients extending to degree 2190 and order 2159 was ...
Anthony Afam Okiwelu   +2 more
openaire   +2 more sources

Global Assessment of Lake Surface Morphology and Its Impact on Water Volume Estimation

open access: yesWater Resources Research, Volume 61, Issue 7, July 2025.
Abstract Lake surface morphology, an essential yet underexplored feature of hydrological systems, remains poorly understood, including its effects on water volume estimation. This study investigates north‐south surface profiles of 147 lakes worldwide using ICESat‐2 altimetry data (2018–2024).
Jing Zhang   +3 more
wiley   +1 more source

SWOT Water Surface Elevation in Herbaceous Wetlands of Florida's Everglades

open access: yesGeophysical Research Letters, Volume 52, Issue 9, 16 May 2025.
Abstract Observing water level variations in wetlands is important for tracking global water and carbon cycles. The Surface Water and Ocean Topography (SWOT) mission was launched to measure Earth's surface waters, but its performance in vegetated wetlands was unknown.
Solomon Kica   +3 more
wiley   +1 more source

Recent Variability in Fracture Characteristics and Ice Flow of Thwaites Ice Shelf, West Antarctica

open access: yesJournal of Geophysical Research: Earth Surface, Volume 130, Issue 5, May 2025.
Abstract The rapidly changing Thwaites Ice Shelf is crucial for understanding ice‐shelf dynamical processes and their implications for sea‐level rise from Antarctica. Fractures, particularly their vertical structure, are key to ice‐shelf structural integrity but remain poorly measured.
Shujie Wang   +6 more
wiley   +1 more source

Detection of Landslide‐Generated Tsunami by Shipborne GNSS Precise Point Positioning

open access: yesGeophysical Research Letters, Volume 52, Issue 8, 28 April 2025.
Abstract Precise point positioning (PPP) of ships using Global Navigation Satellite System (GNSS) data reveals the precise movements of marine vessels. This method may quantify anomalies in sea surface height with implications for oceanographic monitoring, exploration, and tsunami warning. The GNSS PPP data from the R/V Sikuliaq, a research ship of the
Adam E. Manaster   +4 more
wiley   +1 more source

Validation of Satellite-Only GGMs over the Western Part of North Macedonia [PDF]

open access: yesGeodetski Glasnik
The purpose of this research is to identify the most suitable Global Geopotential Model (GGM) for geoid determination in a specific region of Western Macedonia. The selection of the most suitable GGM eliminates the evaluation of numerous alternatives and
Filip Petrovski
doaj   +1 more source

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