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Earth's Principal Monments of Inertia
WEI Zi-qing
£¨Xi'an Research Institute of Surveying and Mapping, xi'an 710054, China£©
Abstract£ºThe Earth's principal moments of inertia are the geodetic and astronomical fundamental Earth parameters. The paper is devoted to the Earth's principal moments of inertia and the related issues. Section 1 formulates the Earth's principal moments of inertia and the Earth's flattening; Section 2 deals with the computation of the second-degree harmonic coefficients in the principal axes coordinate system; Section 3 studies the directions of the Earth's principal axes of inertia, and Section 4 presents the numerical values of the Earth's principal moments of inertia, and of the orientations of the Earth's principal axes of inertia, and of the Earth's flattening.
Key words£ºsecondª²degree harmonic coefficients£» earth's principal axes of inertia£» earth's principal moments of inertia£» earth's figure