Geodynamics

SGT scientists study geodynamical processes to gain insight into the structure and composition of the Earth and the redistribution of mass associated with both tidal and non-tidal sources of forcing. By also studying other terrestrial-like planets and the Moon we have been able to contrast and confirm geophysical models, and establish common bases. These investigations underpin and advance heightened understanding of an integrated Earth system.

Processes occurring in the interior of the Earth are the source of a host of environmental phenomena, including those capable of being hazards to life on the Earth’s surface. Some are a direct expression of processes occurring in the Earth’s interior like earthquakes and volcanic eruptions, while others involve the mixture of solid Earth processes with water leading to floods, tsunamis, landslides, subsidence, and seismically induced liquefaction of sedimentary material. Looking at the horizontal gradient of the gravity field, precise station motion monitoring, and broad ice sheet changes give insight into deformation and strain accumulation within key systems. Many of the activities supported by SGT are aimed at providing independent estimates of globally environmental parameters and/or their integrated effects.