Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland
A period of 18 years of infrasonic recordings was analyzed from a microbarometer array (I18DK) in northwestern Greenland, near Qaanaaq. A huge number of infrasonic detections, over 700,000, have been made in I18DKs soundscape during the Arctic summers. Simultaneously identified were both calving eve...
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Online Access: | http://hdl.handle.net/2115/87040 https://doi.org/10.1029/2021GL097113 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/87040 2023-05-15T15:03:10+02:00 Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland Evers, L. G. Smets, P. S. M. Assink, J. D. Shani-Kadmiel, S. Kondo, K. Sugiyama, S. http://hdl.handle.net/2115/87040 https://doi.org/10.1029/2021GL097113 eng eng American Geophysical Union http://hdl.handle.net/2115/87040 Geophysical research letters, 49(8): e2021GL097113 http://dx.doi.org/10.1029/2021GL097113 https://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND infrasound glacier Greenland CTBT seismo-acoustics 452 article fthokunivhus https://doi.org/10.1029/2021GL097113 2022-11-18T01:07:01Z A period of 18 years of infrasonic recordings was analyzed from a microbarometer array (I18DK) in northwestern Greenland, near Qaanaaq. A huge number of infrasonic detections, over 700,000, have been made in I18DKs soundscape during the Arctic summers. Simultaneously identified were both calving events from marine-terminating glaciers and discharge related acoustics from a land-terminating glacier. This infrasonic activity is correlated to sea-surface and atmospheric temperature, respectively. Inter-yearly to daily variations were retrieved showing a strong variability in infrasonic detection rates and hence glacier activity. The highest number of infrasonic detections were found in recent years from the land-terminating glacier. The latter is supported by actual discharge measurements and partly by a discharge model. It is concluded that monitoring infrasound from glaciers can complement other techniques to remotely and passively get insights into glacier dynamics with high temporal and spatial resolution. Article in Journal/Newspaper Arctic glacier Greenland Qaanaaq Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Arctic Greenland Qaanaaq ENVELOPE(-69.232,-69.232,77.467,77.467) Geophysical Research Letters 49 8 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
infrasound glacier Greenland CTBT seismo-acoustics 452 |
spellingShingle |
infrasound glacier Greenland CTBT seismo-acoustics 452 Evers, L. G. Smets, P. S. M. Assink, J. D. Shani-Kadmiel, S. Kondo, K. Sugiyama, S. Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland |
topic_facet |
infrasound glacier Greenland CTBT seismo-acoustics 452 |
description |
A period of 18 years of infrasonic recordings was analyzed from a microbarometer array (I18DK) in northwestern Greenland, near Qaanaaq. A huge number of infrasonic detections, over 700,000, have been made in I18DKs soundscape during the Arctic summers. Simultaneously identified were both calving events from marine-terminating glaciers and discharge related acoustics from a land-terminating glacier. This infrasonic activity is correlated to sea-surface and atmospheric temperature, respectively. Inter-yearly to daily variations were retrieved showing a strong variability in infrasonic detection rates and hence glacier activity. The highest number of infrasonic detections were found in recent years from the land-terminating glacier. The latter is supported by actual discharge measurements and partly by a discharge model. It is concluded that monitoring infrasound from glaciers can complement other techniques to remotely and passively get insights into glacier dynamics with high temporal and spatial resolution. |
format |
Article in Journal/Newspaper |
author |
Evers, L. G. Smets, P. S. M. Assink, J. D. Shani-Kadmiel, S. Kondo, K. Sugiyama, S. |
author_facet |
Evers, L. G. Smets, P. S. M. Assink, J. D. Shani-Kadmiel, S. Kondo, K. Sugiyama, S. |
author_sort |
Evers, L. G. |
title |
Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland |
title_short |
Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland |
title_full |
Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland |
title_fullStr |
Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland |
title_full_unstemmed |
Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland |
title_sort |
long-term infrasonic monitoring of land and marine-terminating glaciers in greenland |
publisher |
American Geophysical Union |
url |
http://hdl.handle.net/2115/87040 https://doi.org/10.1029/2021GL097113 |
long_lat |
ENVELOPE(-69.232,-69.232,77.467,77.467) |
geographic |
Arctic Greenland Qaanaaq |
geographic_facet |
Arctic Greenland Qaanaaq |
genre |
Arctic glacier Greenland Qaanaaq |
genre_facet |
Arctic glacier Greenland Qaanaaq |
op_relation |
http://hdl.handle.net/2115/87040 Geophysical research letters, 49(8): e2021GL097113 http://dx.doi.org/10.1029/2021GL097113 |
op_rights |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1029/2021GL097113 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
8 |
_version_ |
1766335061944172544 |