Results 81 to 90 of about 24,711 (273)

Analysis of altimetry over inland seas [PDF]

open access: yes
Satellite-based altimetric data taken by GEOS-3 and SEASAT over the Black Sea and Caspian Sea are analyzed and a least squares collocation technique is used to predict the geoid undulation on a .25-degree by .25-degree grid and to transform these geoid ...
Au, A. Y., Brown, R. D., Welker, J. E.
core   +1 more source

Precise geoid computation using Stokes-Helmert's scheme and strict integrals of topographic effects

open access: yesGeodesy and Geodynamics, 2019
The high-precision local geoid model was computed based on the improved Stokes-Helmert′s boundary value problem and strict integrals of topographic effects. This proposed method involves three steps.
Dongmei Guo, Huiyou He, Peng Sang
doaj   +1 more source

Detailed gravimetric geoid confirmation of short wavelength features of sea surface topography detected by the Skylab S-193 altimeter in the Atlantic Ocean [PDF]

open access: yes
A detailed gravimetric geoid was computed for the Northwest Atlantic Ocean and Caribbean Sea area in support of the calibration and evaluation of the GEOS-C altimeter. This geoid, computed on a 15 ft. x 15 ft. grid was based upon a combination of surface
Chang, E. S.   +3 more
core   +1 more source

3-D multiobservable probabilistic inversion for the compositional and thermal structure of the lithosphere and upper mantle: III. Thermochemical tomography in the Western-Central U.S. [PDF]

open access: yes, 2016
Acknowledgments We are indebted to F. Darbyshire and J. von Hunen for useful comments on earlier versions of this work. This manuscript benefited from thorough and constructive reviews by W. Levandowski and an anonymous reviewer.
Aoki K.   +10 more
core   +2 more sources

Properties of the lithosphere and asthenosphere deduced from geoid observations [PDF]

open access: yes
Data from the GEOS-3 and SEASAT Satellites provided a very accurate geoid map over the oceans. Broad bathymetric features in the oceans such as oceanic swells and plateaus are fully compensated.
Turcotte, D. L.
core   +1 more source

Consideration of permanent tidal deformation in the orbit determination and data analysis for the Topex/Poseidon mission [PDF]

open access: yes
The effects of the permanent tidal effects of the Sun and Moon with specific applications to satellite altimeter data reduction are reviewed in the context of a consistent definition of geoid undulations.
Klosko, Steven M.   +4 more
core   +1 more source

Direct regional quasi-geoid determination using EGM2008 and DEM: A case study for Mainland China and its vicinity areas

open access: yesGeodesy and Geodynamics, 2015
Earth's gravity model (EGM) helps people better determine the figure of Earth, which is generally represented by a global geoid. For a considerable amount of practical applications, people use quasi-geoid to approximate the geoid, thus the quasi-geoid is
Jin Li, WenBin Shen, Xuhua Zhou
doaj   +1 more source

The geoid spectrum from altimetry [PDF]

open access: yes
Satellite altimetry information from the world's major oceans was analyzed to arrive at a geoid power spectrum. Using the equivalent of about 7 revolutions of data (mostly from GEOS-3) the power spectrum of the sea surface generally follows the expected ...
Wagner, C. A.
core   +1 more source

Calibration and evaluation of Skylab altimetry for geodetic determination of the geoid [PDF]

open access: yes
The author has identified the following significant results. The Skylab altimeter experiment has proven the capability of the altimeter for measurement of sea surface topography.
Fubara, D. M.   +3 more
core   +1 more source

Temporal Variations of the Marine Geoid [PDF]

open access: bronze, 2020
Frank Siegismund   +3 more
openalex   +1 more source

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