Audio record of a 'singing iceberg' from the Weddell Sea, Antarctica, supplement to: Müller, Christian; Schlindwein, Vera; Eckstaller, Alfons; Miller, Heinz (2005): Singing Icebergs. Science, 310(5752), 1299

Sustained harmonic tremor signals were recorded by the seismographs of the German Neumayer Base seismological network in western Dronning Maud Land, Antarctica. These tremor episodes, lasting up to 16 hours, were recorded up to 820 kilometers from the source. Their spectra show narrow peaks with fun...

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Bibliographic Details
Main Authors: Müller, Christian, Schlindwein, Vera, Eckstaller, Alfons, Miller, Heinz
Format: Dataset
Language:English
Published: PANGAEA - Data Publisher for Earth & Environmental Science 2005
Subjects:
Iceberg
ANT-XXIII/2
Polarstern
Marine Geophysics @ AWI AWI_GeoPhy
Weddell Sea
Dronning Maud Land
Neumayer
Weddell
Antarc*
Antarctica
Online Access:https://dx.doi.org/10.1594/pangaea.339110
https://doi.pangaea.de/10.1594/PANGAEA.339110
Description
Summary:Sustained harmonic tremor signals were recorded by the seismographs of the German Neumayer Base seismological network in western Dronning Maud Land, Antarctica. These tremor episodes, lasting up to 16 hours, were recorded up to 820 kilometers from the source. Their spectra show narrow peaks with fundamental frequencies ranging from 0.5 to 6 hertz, more than 30 integer harmonic overtones, and frequency gliding, resembling volcanic tremor. Frequency-wave number analysis suggested a moving source, which was recognized as iceberg B-09A traveling along the coast of eastern Antarctica. The most probable tremor sources are fluid-flow-induced vibrations inside the iceberg's tunnel/crevasse systems. : The fundamental frequency is around 0.5 Hz with 30+ harmonic overtones, changing from harmonic to non-harmonic and vice versa (file format: wave).

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