Download PDF by T. Ahrens: AGU Ref Shelf. Global Earth Physics A Handbook of Physical

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0358 x 1O37 kg m2 Polar moment of inertia (133) with D* = pcH for topography above sea level and D* = p,H + p h for topography below sea level. H is the compensation d”epth. 3 x lo3 kg rne3, For a two-dimensional locally compensated topography, the geoid height N is given by [7] (20) N=- with p* = pc for topography above sea level and p* = pc - pw for topography below sea level. t is crustal root, h is topographic height above or below sea level, pw , pc and pm are seawater, crust and mantle densities.

F. Yoder, New observations of Saturn’s coorbital satellites, Icarus, 100, 464-484, 1993. Nul1, G. , E. L. Lau, E. D. Biller and J. D. Anderson, Saturn Gravity results obtained from Pioneer 11 tracking data and Earth-based Saturn satellite data, Astron. , 86, 456-468, 1981. Nul1, G. , W. M. , S. P. Synnott, Masses and densities of Pluto and Charon, A&on. , 105, 2319, 1993. Owen, W. M. Jr. and S. P. Synnott, Orbits of the ten small satellites of Uranus, Astron. , 93, 1268-1271, 1987. Owen, W. M. , A theory of the earth’s precession relative to the invariable plane, PhD Thesis, University of Florida, 1990.

It is based on a truncation of the spherical harmonic expansion at degree 10 which unnecessarily excludes part of the main field resolved by recent data. Furthermore, by design the IGRF does not yield a model of the field at all points in time. Partly because of these shortcomings, a large number of other models of the field are used, especially in studies of the core which are narticularlv sensitive to these problems. In Table 3 we list a number of models that have been produced recently. Our list is not comprehensive: more complete lists are given by [l] and [18].

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AGU Ref Shelf. Global Earth Physics A Handbook of Physical Constants by T. Ahrens


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