Results 121 to 130 of about 18,240 (265)

Differential uplift and incision of the Yakima River terraces, central Washington State [PDF]

open access: yes, 2015
Amos, CB   +6 more
core   +1 more source

Monitoring regional crustal deformation with horizontal geodetic data [PDF]

open access: yes
The National Ocean Survey is developing an automated system to derive parameters of horizontal crustal motion from existing geodetic data by the process of least squares estimation.
Gergen, J. G., Snay, R. A.
core   +1 more source

ALB Evaluation for NOAA charting requirements [PDF]

open access: yes, 2013
The National Oceanic and Atmospheric Administration (NOAA) acquires hydrographic data around the coasts of the US and its territories using in-house surveys and contracting resources. Hydrographic data are primarily collected using sonar systems, while a
Imahori, Gretchen   +2 more
core   +1 more source

Global detailed geoid computation and model analysis [PDF]

open access: yes
Comparisons and analyses were carried out through the use of detailed gravimetric geoids which we have computed by combining models with a set of 26,000 1 deg x 1 deg mean free air gravity anomalies.
Marsh, J. G., Vincent, S.
core   +1 more source

Multi-epoch deformation analysis with geodetic datum invariance

open access: yes, 2023
[EN] Multiple epochs of geodetic deformation observations in 1D, 2D or 3D with their covariance matrices can be adjusted using the least-squares method and tested for deformation hypotheses, using the author’s hypothesis constrained multi-epoch analysis method.
openaire   +1 more source

Geometric adjustment of the South American satellite densification (PC-1000) network [PDF]

open access: yes
Reduced normal equations were computed from observation data and combined with reduced normal equations of other satellite networks to provide station coordinates from a single least square adjustment. Terrestrial data, which include base-lines, heights,
Kumar, M., Mueller, I. I.
core   +1 more source

Goddard earth models (5 and 6) [PDF]

open access: yes
A comprehensive earth model has been developed that consists of two complementary gravitational fields and center-of-mass locations for 134 tracking stations on the earth's surface.
Brownd, J. E.   +3 more
core   +1 more source

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