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This chapter provides some elementary knowledge of geophysics, geodesy and astronomy for the readers of diverse background to understand the rest of the book. The focus is to provide a brief description of the necessary terminologies concerning the internal structure of the Earth, plate tectonics, geodetic coordinates, celestial coordinates, precession-nutation, polar motion, time systems, and spherical trigonometry.

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Background Knowledge

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  • 发表日期：

    2026年

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  • Jun-Yi Guo

摘要

This chapter provides some elementary knowledge of geophysics, geodesy and astronomy for the readers of diverse background to understand the rest of the book. The focus is to provide a brief description of the necessary terminologies concerning the internal structure of the Earth, plate tectonics, geodetic coordinates, celestial coordinates, precession-nutation, polar motion, time systems, and spherical trigonometry.