Common roots of modern seismology and of earth tide research. A historical overview

Abstract

To cite this version:P. Varga. Common roots of modern seismology and of earth tide research. A historical overview. Journal of Geodynamics, Elsevier, 2009, 48 (3-5) This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.Page 1 of 9A c c e p t e d M a n u s c r i p t AbstractThe most important connection between earth tidal research and seismology is related to first attempts to measure the Earth's effective elasticity by using the tides. The main target of the present study is to describe some important developments in this common field of seismology and earth tide research until the middle of the XXth century.

Horizontal pendulum development and the legacy of Ernst von Rebeur-Paschwitz

“…It strongly depends on the value of the free period, which changed with time and often needed to be calibrated, as a consequence of points wearing or small offsets caused by high-frequency earthquake waves. It was used by Rebeur-Paschwitz and his continuators to compute the deviations of the vertical versus time for the measurement of earth tides (Amalvict et al 1992;Varga 2009). Table 2 compares the sensitivity achieved by Rebeur and by some of the horizontal pendulums investigated in this paper.…”