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SUMMARY:Revealing the Hidden Structure of Planetary Bodies through Geodeti
 c and Geophysical Constraints
DTSTART:20260622T120000Z
DTEND:20260622T140000Z
DTSTAMP:20260625T012100Z
UID:indico-event-16@solarsystem.events
DESCRIPTION:Speakers: Antonio Genova (Sapienza University of Rome)\n\nPlan
 etary bodies preserve the record of their formation and evolution from the
  surface to the deep interior. Although their internal structure cannot be
  directly observed\, its properties can be constrained by studying how pla
 nets and moons rotate\, deform\, and respond to the distribution and redis
 tribution of mass on and beneath their surfaces.\nThis presentation descri
 bes how gravity\, topography\, planetary orientation\, tidal deformation\,
  and temporal variations of low-degree gravity fields can be jointly inter
 preted to investigate the structure and evolution of planetary bodies. The
 se geodetic and geophysical constraints are combined with geological and g
 eochemical observations to infer crustal density and thickness\, elastic t
 hickness\, the composition and distribution of subsurface or surface depos
 its\, the rheological properties of mantles and icy shells\, and the size\
 , state\, and dynamical coupling of deep cores.\nThe talk covers applicati
 ons to terrestrial planets and icy moons\, including Mercury\, Mars\, Venu
 s\, Europa\, and Enceladus. At crustal and surface scales\, the joint anal
 ysis of gravity and topography constrains lateral variations in crustal pr
 operties and surface deposits. At intermediate depths\, loading\, tidal re
 sponse\, and long-wavelength gravity signatures provide sensitivity to lit
 hospheric\, mantle\, and ice-shell rheology. Librations offer complementar
 y constraints on the mechanical response of the outer layers and can provi
 de evidence for internal decoupling associated with magma layers or subsur
 face oceans. At deeper levels\, the joint inversion of pole orientation an
 d low-degree gravity coefficients constrains the polar moment of inertia\,
  and the properties of deep interiors\, including the size and state of pl
 anetary cores. Temporal gravity variations further provide a means to moni
 tor climate-driven mass redistribution and to investigate the mechanical r
 esponse of planetary interiors to surface loading and tidal forcing.\n\nht
 tps://solarsystem.events/event/16/
LOCATION:Lamarck 522 (IPGP - Campus des Grands Moulins)
URL:https://solarsystem.events/event/16/
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