Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Hilaire Legros"'
Publikováno v:
Celestial Mechanics and Dynamical Astronomy. 93:113-146
Tidal forces acting on the Earth cause deformations and mass redistribution inside the planet involving surface motions and variation in the gravity field, which may be observed in geodetic experiments. Because for space geodesy it is now necessary t
Effects of inner core viscosity on gravity changes and spatial nutations induced by luni-solar tides
Publikováno v:
Physics of the Earth and Planetary Interiors. 129:31-41
In this paper, we investigate the perturbations induced by the nearly-diurnal luni-solar tidal potential on the surface gravity changes and on the spatial nutations. The effects of the magnetic friction at the inner core boundary (ICB) and on the inn
Publikováno v:
Physics of the Earth and Planetary Interiors. 122:187-204
The equations governing the rotation of the Earth, of the fluid outer core and of the inner core are generalized to include electromagnetic torques at the core-mantle and inner core boundary and to take into account the viscous relaxation of the inne
Autor:
Hilaire Legros, Marianne Greff-Lefftz
Publikováno v:
Physics of the Earth and Planetary Interiors. 112:21-41
The theory of the rotation of the fluid core is modified in order to take into account the magnetic field within the core. Because of the conductivity of the lower mantle, there is a frictional magnetic torque which appears at the core–mantle bound
Publikováno v:
Physics of the Earth and Planetary Interiors. 106:337-351
The atmospheric pressure effects on the Earth's Free Core Nutation (FCN) and some forced nutations are evaluated numerically from the global pressure field provided by the European Center for Medium Range Weather Forecast (ECMWF) on the Earth's solid
Autor:
Hilaire Legros, Marianne Greff-Lefftz
Publikováno v:
Geophysical Journal International. 131:699-723
SUMMARY The degree-one deformation of the Earth (and the induced discrepancy between the figure centre and the mass centre of the Earth) is computed using a theoretical approach (Love numbers formalism) at short timescales (where the Earth has an ela
Autor:
Jacques Hinderer, Hilaire Legros
Publikováno v:
Structure and Dynamics of Earth's Deep Interior
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f472f31b16d280dde6f8d49747d4580e
https://doi.org/10.1029/gm046p0079
https://doi.org/10.1029/gm046p0079
Autor:
Hilaire Legros, Marianne Lefftz
Publikováno v:
Dynamics of Earth's Deep Interior and Earth Rotation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36f8020e67cd1c0cf3f8565f842e37be
https://doi.org/10.1029/gm072p0045
https://doi.org/10.1029/gm072p0045
Publikováno v:
Tides in Astronomy and Astrophysics ISBN: 9783642329609
Tides in Astronomy and Astrophysics
Jean Souchay, Stéphane Mathis, Tadashi Tokieda. Tides in Astronomy and Astrophysics, Springer Berlin Heidelberg, pp.31-82, 2013, Lecture Notes in Physics, 978-3-642-32961-6. ⟨10.1007/978-3-642-32961-6_2⟩
Tides in Astronomy and Astrophysics
Jean Souchay, Stéphane Mathis, Tadashi Tokieda. Tides in Astronomy and Astrophysics, Springer Berlin Heidelberg, pp.31-82, 2013, Lecture Notes in Physics, 978-3-642-32961-6. ⟨10.1007/978-3-642-32961-6_2⟩
International audience; Tidal phenomena along the coasts were known since the prehistoric era, but a long journey of investigations through the centuries was necessary from the Greco-Roman Antiquity to the modern era to unravel in a quasi-definitive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fbce6769f0aee26a3247513effe8cc1
https://doi.org/10.1007/978-3-642-32961-6_2
https://doi.org/10.1007/978-3-642-32961-6_2
Publikováno v:
Physics of the Earth and Planetary Interiors. 96:25-39
The atmospheric pressure effects on the nutations are evaluated using the analytical expression of the rotational motion of the Earth in inertial space as a function of the external surface pressure torque. The most efficient term in perturbing the n