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Estimating crustal deformations from a combination of baseline measurements and geophysical models
Abstract The estimation of crustal deformations from repeated baseline measurements is a singular problem in the absence of prior information. One often applied solution is a free adjustment in which the singular normal matrix is augmented with a set of inner constraints. These constraints impose no net translation nor rotation for the estimated deformations X which may not be physically meaningful for a particular problem. The introduction of an available geophysical model from which an expected deformation vector$$\bar X$$ and its covariance matrix$$\sum _{\bar X} $$ can be computed will direct X to a physically more meaningful solution. Three possible estimators are investigated for estimating deformations from a combination of baseline measurements and geophysical models.
Estimating crustal deformations from a combination of baseline measurements and geophysical models
Abstract The estimation of crustal deformations from repeated baseline measurements is a singular problem in the absence of prior information. One often applied solution is a free adjustment in which the singular normal matrix is augmented with a set of inner constraints. These constraints impose no net translation nor rotation for the estimated deformations X which may not be physically meaningful for a particular problem. The introduction of an available geophysical model from which an expected deformation vector$$\bar X$$ and its covariance matrix$$\sum _{\bar X} $$ can be computed will direct X to a physically more meaningful solution. Three possible estimators are investigated for estimating deformations from a combination of baseline measurements and geophysical models.
Estimating crustal deformations from a combination of baseline measurements and geophysical models
Bock, Yehuda (author)
Bulletin géodésique ; 57
1983
Article (Journal)
English
Geodäsie , Geometrie , Geodynamik , Zeitschrift , Mathematik , Mineralogie
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