Results 101 to 110 of about 24,711 (273)

Altimetry data over trenches and island-arcs and convection in the mantle [PDF]

open access: yes
Transfer function techniques were developed to calculate the isostatic component of the geoid signal over trench/island arc/back arc systems. Removal of this isostatic component from geoid profiles determined by GEOS 3 radar altimetry leaves a residual ...

core   +1 more source

Strategies for estimating the marine geoid from altimeter data [PDF]

open access: yes
Altimeter data from a spacecraft borne altimeter was processed to estimate the fine structure of the marine geoid. Simulation studies show that, among several competing parameterizations, the mean free air gravity anomaly model exhibited promising geoid ...
Argentiero, P.   +2 more
core   +4 more sources

Improved ground truth geoid for the GEOS-3 calibration area [PDF]

open access: yes
The purpose of this investigation is to develop methods and procedures are reported for computing a detailed geoid to be used as geodetic ground truth for the calibration and verification of GEOS-3 altimeter data.
Fubara, D. M.   +3 more
core   +1 more source

Ground truth data requirements for altimeter performance verification [PDF]

open access: yes, 1972
The amount and type of ground truth required for an altimeter experiment is a function of the uncertainty in the satellite orbit, the altimeter error budget and the type of operation being performed.
Walsh, E. J.
core   +1 more source

Determination of the Quasi-Geoid of Xinjiang and Tibet Areas and the Normal Height of Mt. Everest Based on EGM2008

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2011
The normal height H* is the height above the quasi-geoid, which coincides with the geoid in the ocean but slightly deviates from the geoid in terrestrial areas. In Mainland China, the height datum system is based on the quasi-geoid.
WenBin Shen   +3 more
doaj   +1 more source

The road toward a general relativistic metric inside the Earth and its effect on neutrino travel from CERN to GRAN-SASSO Laboratory [PDF]

open access: yes, 2012
In a first attempt to describe the effect on neutrino travel inside the Earth caused by general relativity in the case of a dense Earth, we have neglected the Earth's rotation, the Earth's ellipticity and also the surface terrain variation, nevertheless ...
Besida, Olivier
core   +2 more sources

Geoid determination using airborne gravity vectors

open access: yesEarth, Planets and Space
In traditional airborne gravimetry, the vertical component of the gravity vector is used as an approximation of the measured magnitude of the gravity vector, which enters the determination of the local geoid.
Mehdi Goli   +4 more
doaj   +1 more source

An observational philosophy for GEOS-C satellite altimetry [PDF]

open access: yes, 1972
The parameters necessary for obtaining a 10 cm accuracy for GEOS-C satellite altimetry are outlined. These data include oceanographic parameters, instrument calibration, pulse propagation, sea surface effects, and optimum ...
Weiffenbach, G. C.
core   +1 more source

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