Identification of iceberg-forming ice quakes from seismic and infrasound data
The application of a joint method of recording seismic and infrasound signals generated during ice calving from the terminal part of the outlet glaciers to identify the process of iceberg formation is considered. For many years, the Kola Branch of the Geophysical Service of the Russian Academy of Sc...
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| Format: | Article |
| Language: | Russian |
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Nauka
2021-05-01
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| Series: | Лëд и снег |
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| Online Access: | https://ice-snow.igras.ru/jour/article/view/894 |
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| _version_ | 1849399818658512896 |
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| author | Yu. A. Vinogradov A. V. Fedorov S. V. Baranov V. E. Asming I. S. Fedorov |
| author_facet | Yu. A. Vinogradov A. V. Fedorov S. V. Baranov V. E. Asming I. S. Fedorov |
| author_sort | Yu. A. Vinogradov |
| collection | DOAJ |
| description | The application of a joint method of recording seismic and infrasound signals generated during ice calving from the terminal part of the outlet glaciers to identify the process of iceberg formation is considered. For many years, the Kola Branch of the Geophysical Service of the Russian Academy of Sciences has been developing technology for remote monitoring of the processes of destruction of ice sheets in the Arctic. To improve the methodology of geophysical monitoring of processes of the iceberg calving in the Arctic seas in the Svalbard archipelago, the experiment was conducted for the first time on the complex recording of the destruction of the Nordenskiold glacier using seismometers, infrasound microphones and video cameras. The aim of the experiment was to obtain time-synchronized recordings of seismic, infrasound and video signals produced by calving of the glacier edge. The synchronized recordings obtained as a result of the experiment were used to identify specific attributes that characterize the recordings of iceberg-inducing ice quakes. Results of the experiment showed that the calving events that produce floating icebergs generate seismic and infrasonic signals of a special spectral composition and are characterized by the presence of pronounced bands in the spectral-time representation. The revealed characteristic is a distinguishing evidence of a calving event with the iceberg-inducing potential from other types of ice quakes, such as cracking and movement of the glacier body. The experimental results obtained may be used for development of a system for seismic-infrasound monitoring of processes of the iceberg formation. |
| format | Article |
| id | doaj-art-1386e80aa0b94592b7086e6ed8716e2c |
| institution | Kabale University |
| issn | 2076-6734 2412-3765 |
| language | Russian |
| publishDate | 2021-05-01 |
| publisher | Nauka |
| record_format | Article |
| series | Лëд и снег |
| spelling | doaj-art-1386e80aa0b94592b7086e6ed8716e2c2025-08-20T03:38:15ZrusNaukaЛëд и снег2076-67342412-37652021-05-0161226227010.31857/S2076673421020087664Identification of iceberg-forming ice quakes from seismic and infrasound dataYu. A. Vinogradov0A. V. Fedorov1S. V. Baranov2V. E. Asming3I. S. Fedorov4Geophysical Survey of Russian Academy of ScienceKola branch of Geophysical Survey, Russian Аcademy of ScienceKola branch of Geophysical Survey, Russian Аcademy of ScienceKola branch of Geophysical Survey, Russian Аcademy of ScienceKola branch of Geophysical Survey, Russian Аcademy of ScienceThe application of a joint method of recording seismic and infrasound signals generated during ice calving from the terminal part of the outlet glaciers to identify the process of iceberg formation is considered. For many years, the Kola Branch of the Geophysical Service of the Russian Academy of Sciences has been developing technology for remote monitoring of the processes of destruction of ice sheets in the Arctic. To improve the methodology of geophysical monitoring of processes of the iceberg calving in the Arctic seas in the Svalbard archipelago, the experiment was conducted for the first time on the complex recording of the destruction of the Nordenskiold glacier using seismometers, infrasound microphones and video cameras. The aim of the experiment was to obtain time-synchronized recordings of seismic, infrasound and video signals produced by calving of the glacier edge. The synchronized recordings obtained as a result of the experiment were used to identify specific attributes that characterize the recordings of iceberg-inducing ice quakes. Results of the experiment showed that the calving events that produce floating icebergs generate seismic and infrasonic signals of a special spectral composition and are characterized by the presence of pronounced bands in the spectral-time representation. The revealed characteristic is a distinguishing evidence of a calving event with the iceberg-inducing potential from other types of ice quakes, such as cracking and movement of the glacier body. The experimental results obtained may be used for development of a system for seismic-infrasound monitoring of processes of the iceberg formation.https://ice-snow.igras.ru/jour/article/view/894iceberg formationsvalbard archipelagocalvingglacierice quakevideo recordinginfrasound monitoringseismic monitoring |
| spellingShingle | Yu. A. Vinogradov A. V. Fedorov S. V. Baranov V. E. Asming I. S. Fedorov Identification of iceberg-forming ice quakes from seismic and infrasound data Лëд и снег iceberg formation svalbard archipelago calving glacier ice quake video recording infrasound monitoring seismic monitoring |
| title | Identification of iceberg-forming ice quakes from seismic and infrasound data |
| title_full | Identification of iceberg-forming ice quakes from seismic and infrasound data |
| title_fullStr | Identification of iceberg-forming ice quakes from seismic and infrasound data |
| title_full_unstemmed | Identification of iceberg-forming ice quakes from seismic and infrasound data |
| title_short | Identification of iceberg-forming ice quakes from seismic and infrasound data |
| title_sort | identification of iceberg forming ice quakes from seismic and infrasound data |
| topic | iceberg formation svalbard archipelago calving glacier ice quake video recording infrasound monitoring seismic monitoring |
| url | https://ice-snow.igras.ru/jour/article/view/894 |
| work_keys_str_mv | AT yuavinogradov identificationoficebergformingicequakesfromseismicandinfrasounddata AT avfedorov identificationoficebergformingicequakesfromseismicandinfrasounddata AT svbaranov identificationoficebergformingicequakesfromseismicandinfrasounddata AT veasming identificationoficebergformingicequakesfromseismicandinfrasounddata AT isfedorov identificationoficebergformingicequakesfromseismicandinfrasounddata |