A triaxial reference ellipsoid for the Earth
نویسندگان
چکیده
Abstract We present a new, physically motivated triaxial reference ellipsoid for the Earth. It is an equipotential surface in gravity field and closely approximates geoid, akin to conventional of revolution. According Burša Fialová (Studia Geophysica et Geodaetica 37(1):1–13, 1993), uniquely, but not exclusively, specified by body’s total mass, dynamic form factors polar equatorial flattening, longitude major axis, rotation rate, designated potential. model using ellipsoidal harmonics. While they are rarely considered practical near-spherical planets, we leverage intrinsic property that harmonics yield exact expression constant potential on ellipsoid. A procedure proposed solve parameters converge iteratively fulfill condition equipotentiality. solution Earth Gravitational Model 2008.
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ژورنال
عنوان ژورنال: Journal of geodesy
سال: 2023
ISSN: ['1432-1394', '0949-7714']
DOI: https://doi.org/10.1007/s00190-023-01717-1