Estimating crustal deformations from a combination of baseline measurements and geophysical models |
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| Authors: | Yehuda Bock |
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| Institution: | 1. The Department of Geodetic Science and Surveying, The Ohio State University, 43210, Columbus, Ohio
3. Air Force Geophysics Laboratory (code LWG), Hanscom Air Force Base, 01731, MA
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| 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. |
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