Statistics – Computation
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995georl..22..579m&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 22, no. 5, p. 579-582
Statistics
Computation
21
Definition, Earth (Planet), Earth Gravitation, Earth Rotation, Earth Tides, Nutation, Very Long Base Interferometry, Computation, Gravitational Fields, Love Waves, Mathematical Models
Scientific paper
For an oceanless, elastic, spheroidal, rotating and nutating Earth, we present new definitions for the latitude-dependent Love numbers and gravimetric constant which are free of certain drawbacks of the definitions currently in use, and make the computation of quantities of observational interest simpler and more direct. Numerical values, computed for an Earth model characterized by 'modified PREM' parameters, are also presented. This model is designed to have the value estimated from very long base interferometry (VLBI) data for the eigenfrequency of the Nearly Diurnal Free Wobble (NDFW), and assures thus an accurate representation of the NDFW resonance in the Earth tides. To achieve current and future accuracy goals, the Love number values used must fully correspond to the definitions employed - a requirement not consistently met in some existing programs for analysis of space-geodetic data.
Buffet B. A.
Mathews P. M.
Shapiro Irwin I.
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