Results 71 to 80 of about 6,187 (170)
Definition and Realization of a Global Vertical Datum
, 1994 The requirements for defining and realizing a global vertical datum (GVD) with a precision on the dm - or even cm - level has become essential now, due to the improved measurement accuracy provided by the space geodetic techniques.
Balasubramania, Nagarajan
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Towards unification of vertical datum for Sabah and Sarawak using gravimetric geoid model [PDF]
, 2017 Sabah and Sarawak have adopted various local vertical datums that tied to mean sea level referring to tide gauges. The use of various datums may implicate height inconsistencies in these two states.
Othman, Amir Hamzah
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WAVE EQUATION DATUMING TO CORRECT TOPOGRAPHY EFFECT ON FOOTHILL SEISMIC DATA
Earth Sciences Research Journal, 2005 The current seismic processing applies Static Corrections to overcome the effects associated to rough topography, based in the assumption that velocity in near surface is lower than in the substratum, which force going up rays travel near to vertical ...
Montes Vides Luis Alfredo +1 more
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Método de Levantamento Topo-Batimétrico do Perfil do Sistema Praia-Antepraia
Revista Brasileira de Geomorfologia, 2004 É apresentada uma metodologia de levantamento topo-batimétrico visando o acoplamento do perfil da praia ao perfil submarino da antepraia, a partir de um mesmo datum vertical de referência em terra, transposto por nivelamento para o ajuste do ecobatimetro,
Dieter Muehe
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Influence of Secondary Brown Carbon Aerosol Lifetime on Radiative Properties
Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.Abstract Brown carbon (BrC), a light‐absorbing organic aerosol, exhibits higher absorption coefficients at short wavelengths. Partial BrC can be formed via secondary process. In this study, we isolated the secondary BrC (σabs,sec BrC) between urban surface and mountain stations (which receive surface pollutants during convective mixing) to investigate ...
Kang Hu +14 more
wiley +1 more source
Earth, Planets and SpaceSince 2015, the scientific community has been working on unifying the global vertical system, following the resolution for the definition and realization of an International Height Reference System.
Gabriel do Nascimento Guimarães +3 more
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Results of GPS reprocessing campaign (1996-2011) provided by Geodetic observatory Pecný
Geoinformatics FCE CTU, 2012 The paper presents the GOP first reprocessing results, which officially contributed to the EPN-repro1 project. It also describes the 15-year GOP cumulative solution providing station coordinates, velocities and their discontinuities over the period of ...
Jan Douša, Pavel Václavovic
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The influence of new vertical datum at existing geodetic plans [PDF]
, 2015 The master's thesis brings attention to the procedures and results of the control of the elevation accuracy in selected geodetic plans. Elevations in the areas of geodetic plans were specified with the method of trigonometric levelling and with reference
Senekovič, Andrej
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ESTUDO DOS ASPECTOS GEODINÂMICOS NO DATUM VERTICAL DO SGB
, 1999 O método do nivelamento geométrico, usualmente utilizado no estabelecimento das redes altimétricas dos sistemas geodésicos fundamentais é, dentre os métodos convencionais, o de maior precisão no posicionamento vertical sobre a superfície terrestre.
Cordini, Jucilei
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On the geoid and orthometric height vs. quasigeoid and normal height
Journal of Geodetic Science, 2018 The geoid, but not the quasigeoid, is an equipotential surface in the Earth’s gravity field that can serve both as a geodetic datum and a reference surface in geophysics. It is also a natural zero-level surface, as it agrees with the undisturbed mean sea
Sjöberg Lars E.
doaj +1 more source