Results 61 to 70 of about 948 (186)
Determination of orthometric elevations using gnss-derived height with the egm2008 geoid height model [PDF]
, 2017 The Global navigation satellite systems (GNSS) has imparted positively on civilian positioning & surveying in the horizontal component in Nigeria for the past two decades. The GNSS receivers’ data are longitude, latitude & elevation. However, the
Emmanuel Menegbo
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Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.Abstract The Surface Water and Ocean Topography (SWOT) mission promises quasi‐global monitoring of glacial lakes, yet the elevation difference arising from its Ka‐band radar penetrating lake snow/ice cover remains unquantified. This poses a challenge to assessing their level changes.
Shuangxiao Luo +4 more
wiley +1 more source
Journal of King Saud University: Engineering Sciences, 2023 Global Navigation Satellite System (GNSS) provides ellipsoidal heights, whereas engineering projects need orthometric heights of points. Thus, to take advantage of GNSS in engineering work, the relation between orthometric and ellipsoid height must be ...
Hamdy M. Ahmed +2 more
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Journal of Geophysical Research: Earth Surface, Volume 131, Issue 5, May 2026.Abstract Quantifying decadal‐scale erosion rates in tectonically active regions is essential for assessing landscape hazards and constraining sediment budgets. A key question in Earth surface processes is how contemporary erosion measurements influenced by recent climatic extremes relate to long‐term geological rates.
Gopal Kumar +3 more
wiley +1 more source
Evolution of geoids in recent years and its impact on oceanography
Scientia Marina, 2014 Mean surface geostrophic ocean currents may be calculated from the Mean Dynamic Topography (MDT), estimated as the difference between a mean sea surface height (MSS) calculated from radar altimeters and a reference geoid height.
Marco Talone +4 more
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The Refined Gravity Field Models for Height System Unification in China
Remote Sensing, 2022 A unified height datum is essential for global geographic information resource construction, ecological environment protection, and scientific research.
Panpan Zhang +6 more
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Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.Abstract The Curie point depth (CPD), a key indicator of the lithosphere's thermal structure, is typically estimated using spectral analysis or interface inversion methods. However, these approaches often neglect the effects of remanent magnetization, leading to substantial uncertainty.
Like Ma, Jun Wang
wiley +1 more source
Omission Error Analysis in Gravity Gradient Measurement
IEEE Access, 2018 Gravity gradient plays an important role in many fields of science, and many methods are used to achieve the measurement of it. To improve measurement accuracy, various error analyses have been conducted in previous studies about positioning and ...
Hongwei Wei +4 more
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Terra Nova, Volume 38, Issue 2, Page 77-86, April 2026.ABSTRACT Deep crustal fragments and structural lineaments identified through satellite gravity data provide evidence for the extension of the reworked ancient basement of the Central African Block into the northern São Francisco Craton and southern Borborema Province.
Douglas Teixeira Martins +3 more
wiley +1 more source
Confronto, su territorio campano, tra modello geoidico EGM2008 e modello di ondulazione da grigliati [PDF]
, 2012 L’accuratezza e la disponibilità del modello globale di ondulazione EGM2008, suggerisce un’analisi dei dati per un suo impiego nel campo geodetico quale alternativa agli attuali modelli locali. In questo lavoro, tale indagine è stata effettuata al fine
SANTAMARIA, Raffaele +2 more
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