Detection of inertial gravity oscillations in the Earth's core with a superconducting gravimeter at Brussels

The 1992 Sanriku-Oki, Japan, Ultra-Slow Earthquake.

“…Thus, slow and silent events may be sources of uncertainties in the interpretation of GPS and VLBI observations. Future possibility we would like to pursue in the field of seismo-geodesy is that ultra-slow earthquakes are potential energy sources of core-undertones (e.g., Melchior and Ducarme, 1986) and shift of geocenter (e.g., Vigue et al, 1992).…”

A global experimental model for gravity tides of the Earth

“…Due to their low drift, high sensitivity and high precision, the SG gravity data have successfully contributed to the studies on geodynamics such as the Earth's tides (Melchior et al, 1996;Xu et al, 1997;Sun et al, 1999Sun et al, , 2001, oceanic and atmospheric loading effects (Warburton et al, 1975;De Meyer and Ducarme, 1991;Merriam, 1993;Sun and Luo, 1998;Xu et al, 1999a;Kroner and Jentzsch, 1999), accurate retrieval of the resonance parameters of the FCN (Merriam, 1994;Defraigne et al, 1994;Xu et al, 1999bXu et al, , 2002, polar motion (Loyer et al, 1999;Xu et al, 2004), free oscillations (Van Camp, 1999;Banka and Crossley, 1999), gravity signals originating from the Earth's fluid outer core (Melchior and Ducarme, 1986;Aldridge and Lumb, 1987;Smylie, 1992;Smylie and Jiang, 1993;Hinderer et al, 1995;Courtier et al, 2000). Most of the previous studies concern only gravity data recorded at individual stations.…”

Fluid Motion of the Outer Core in Response to a Temperature Heterogeneity at the Core-Mantle Boundary and Its Dynamo Action

“…ZHANG and GUBBINS, 1992). There is no reliable evidence for stable stratification in the Earth's outer core (MELCHIOR and DUCARME, 1986;ZuRN et al,, 1987;MANSINHA et al, 1990). The third limitation is the omission of the basic flow.…”