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Index Geophysics

On the digitizing of historical seismograms


Title (Dublin Core)

eng On the digitizing of historical seismograms
hrv O digitaliziranju povijesnih seizmograma

Description (Dublin Core)

eng The pens of early mechanical seismographs record a curved rather than the straight line when the pendulum is shifted from the equilibrium position. Consequently, the abscissa of the seismogram is generally not a linear function of time. This can be avoided by simple corrections. The first one changes the digitized coordinates into those of the zero line of the seismogram, and the second one transforms the zero line coordinates to the nonlinear time scale. This process will preserve both amplitudes of displacement and the time history of the seismogram.

Creator (Dublin Core)

Grabovec, D.
Allegretti, Ivo

Subject (Dublin Core)

eng historical seismogram; digitizing
hrv povijesni seizmogrami; digitaliziranje

Publisher (Dublin Core)

Andrija Mohorovicic Geophysical Institute

Date (Dublin Core)


Type (Dublin Core)


Format (Dublin Core)


Identifier (Dublin Core)

Source (Dublin Core)

ISSN 0352-3659 (Print)
ISSN 1846-6346 (Online)
Volume 11
Issue 1

Language (Dublin Core)


Rights (Dublin Core)

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