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

DOI

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).

Identifier
DOI https://doi.org/10.1594/PANGAEA.339110
Related Identifier https://doi.org/10.1126/science.1117145
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.339110
Provenance
Creator Müller, Christian; Schlindwein, Vera; Eckstaller, Alfons; Miller, Heinz
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2005
Rights Creative Commons Attribution 3.0 Unported
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset
Format audio/x-wav
Size 23.6 MBytes
Discipline Earth System Research
Spatial Coverage (-8.000 LON, -70.500 LAT)