HR: 1330h
AN: G22C-0318 INVITED     [PDF]
TI: Fluid Effects on Earth Rotation: What is Next?
AU: * de Viron, O
EM: o.deviron@oma.be
AF: Royal Observatory of Belgium, Avenue Circulaire, 3, Brussels, 1180 Belgium
AU: Dickey, J O
EM: jean.o.dickey@jpl.nasa.gov
AF: Jet Propulsion Laboratory/Caltech, 4800 Oak Grove Drive, Passadena, 91109 United States
AU: Dehant, V
EM: v.dehant@oma.be
AF: Royal Observatory of Belgium, Avenue Circulaire, 3, Brussels, 1180 Belgium
AB: The interaction between the solid Earth and its fluid layers (the liquid core, the ocean, the hydrology and the atmosphere) is the main cause of Earth rotation fluctuations. Recently, significant progress in atmospheric, oceanic and coupled ocean-atmosphere models has been demonstrated; in parallel, associated data sets and quantity continues to advance. Current and future interdisciplinary geodesy missions (such as Jason, GOCE, GRACE and ICESat) will provide synergistic information that enables unique insights into Earth subsystem processes. Together, joint analyses will results in improvement of fluid models, which will result in better Earth rotation models. In this presentation, we will discuss what we can expect for the future of Earth rotation modeling, and the great challenges ahead.
DE: 1213 Earth's interior--dynamics (8115, 8120)
DE: 1223 Ocean/Earth/atmosphere interactions (3339)
DE: 1239 Rotational variations
SC: Geodesy [G]
MN: 2003 Fall Meeting