Results 81 to 90 of about 29,699 (219)

Shape of the ocean surface and implications for the Earth's interior: GEOS-3 results [PDF]

open access: yes
A new set of 1 deg x 1 deg mean free air anomalies was used to construct a gravimetric geoid by Stokes' formula for the Indian Ocean. Utilizing such 1 deg x 1 deg geoid comparisons were made with GEOS-3 radar altimeter estimates of geoid height.
Bodine, J. H.   +3 more
core   +1 more source

Satellite techniques for determining the geopotential for sea-surface elevations [PDF]

open access: yes, 1984
Spaceborne altimetry with measurement accuracies of a few centimeters which has the potential to determine sea surface elevations necessary to compute accurate three-dimensonal geostrophic currents from traditional hydrographic observation is discussed ...
Pisacane, V. L.
core   +1 more source

Global isostatic geoid anomalies for plate and boundary layer models of the lithosphere [PDF]

open access: yes
Commonly used one dimensional geoid models predict that the isostatic geoid anomaly over old ocean basins for the boundary layer thermal model of the lithosphere is a factor of two greater than that for the plate model.
Hager, B. H.
core   +1 more source

Precision study of satellite levelling with using various models of geoid

open access: yesE3S Web of Conferences, 2018
The main purpose of this study is comparison of orthometric heights of measuring points and the accuracy of these heights depending on selected geoid model and measurement method. In addition, for better understanding of the essence of conducted research,
Buczyńska Anna
doaj   +1 more source

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

Shingle 2.0: generalising self-consistent and automated domain discretisation for multi-scale geophysical models

open access: yes, 2017
The approaches taken to describe and develop spatial discretisations of the domains required for geophysical simulation models are commonly ad hoc, model or application specific and under-documented.
Candy, Adam S., Pietrzak, Julie D.
core   +3 more sources

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

Power spectra of geoid undulations [PDF]

open access: yes
Data from spacecraft altimeters are expected to contribute to an improved determination of the marine geoid. To better define altimeter system design requirements for geoid recovery, amplitudes of geoid undulations at short wavelengths were examined ...
Brown, R. D.
core   +1 more source

Geoid heights in Costa Rica, Case of Study: Baseline Along the Central Pacific Zone

open access: yesIngeniería, 2019
A precise orthometric height (H) and orthometric height difference (ΔH) determination is required in many fields like construction, geodesy and geophysics.
Alonso Vega Fernádez   +2 more
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

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