Monitoring Glacier Calving using Underwater Sound
Climate shifts are particularly conspicuous in the Arctic. Satellite and terrestrial observations show significant increases in the melting and breakup of Arctic tidewater glaciers and their influence on sea level rise. Increasing melt rates are creating an urgency to better understand the link betw...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00064941 2023-05-15T14:57:48+02:00 Monitoring Glacier Calving using Underwater Sound Tęgowski, Jarosław Glowacki, Oskar Ciepły, Michał Błaszczyk, Małgorzata Jania, Jacek Moskalik, Mateusz Blondel, Philippe Deane, Grant B. 2023-02 electronic https://doi.org/10.5194/egusphere-2023-115 https://noa.gwlb.de/receive/cop_mods_00064941 https://egusphere.copernicus.org/preprints/egusphere-2023-115/egusphere-2023-115.pdf eng eng Copernicus Publications https://doi.org/10.5194/egusphere-2023-115 https://noa.gwlb.de/receive/cop_mods_00064941 https://egusphere.copernicus.org/preprints/egusphere-2023-115/egusphere-2023-115.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/restrictedAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/egusphere-2023-115 2023-02-13T00:14:01Z Climate shifts are particularly conspicuous in the Arctic. Satellite and terrestrial observations show significant increases in the melting and breakup of Arctic tidewater glaciers and their influence on sea level rise. Increasing melt rates are creating an urgency to better understand the link between atmospheric and oceanic conditions and glacier frontal ablation through iceberg calving and melting. Elucidating this link requires a combination of short and long-time scale measurements of terminus activity. Recent work has demonstrated the potential of using underwater sound to quantify the time and scale of calving events to yield integrated estimates of ice mass loss (Glowacki and Deane, 2020). Here, we present estimates of subaerial calving flux using underwater sound recorded at Hansbreen, Svalbard in September 2013 combined with an algorithm for the automatic detection of calving events. The method is compared with ice calving volumes estimated from geodetic measurements of the movement of the glacier terminus and an analysis of satellite images. The total volume of above-water calving during the 26 days of acoustical observation is estimated to be 1.7 ± 0.7 × 107 m3, whereas the subaerial calving flux estimated by traditional methods is 7 ± 2 × 106 m3. The results suggest that passive cryoacoustics is a viable technique for long-term monitoring of mass loss from marine-terminating glaciers. Article in Journal/Newspaper Arctic glacier Iceberg* Svalbard Tidewater Niedersächsisches Online-Archiv NOA Arctic Hansbreen ENVELOPE(15.650,15.650,77.075,77.075) Svalbard |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Tęgowski, Jarosław Glowacki, Oskar Ciepły, Michał Błaszczyk, Małgorzata Jania, Jacek Moskalik, Mateusz Blondel, Philippe Deane, Grant B. Monitoring Glacier Calving using Underwater Sound |
topic_facet |
article Verlagsveröffentlichung |
description |
Climate shifts are particularly conspicuous in the Arctic. Satellite and terrestrial observations show significant increases in the melting and breakup of Arctic tidewater glaciers and their influence on sea level rise. Increasing melt rates are creating an urgency to better understand the link between atmospheric and oceanic conditions and glacier frontal ablation through iceberg calving and melting. Elucidating this link requires a combination of short and long-time scale measurements of terminus activity. Recent work has demonstrated the potential of using underwater sound to quantify the time and scale of calving events to yield integrated estimates of ice mass loss (Glowacki and Deane, 2020). Here, we present estimates of subaerial calving flux using underwater sound recorded at Hansbreen, Svalbard in September 2013 combined with an algorithm for the automatic detection of calving events. The method is compared with ice calving volumes estimated from geodetic measurements of the movement of the glacier terminus and an analysis of satellite images. The total volume of above-water calving during the 26 days of acoustical observation is estimated to be 1.7 ± 0.7 × 107 m3, whereas the subaerial calving flux estimated by traditional methods is 7 ± 2 × 106 m3. The results suggest that passive cryoacoustics is a viable technique for long-term monitoring of mass loss from marine-terminating glaciers. |
format |
Article in Journal/Newspaper |
author |
Tęgowski, Jarosław Glowacki, Oskar Ciepły, Michał Błaszczyk, Małgorzata Jania, Jacek Moskalik, Mateusz Blondel, Philippe Deane, Grant B. |
author_facet |
Tęgowski, Jarosław Glowacki, Oskar Ciepły, Michał Błaszczyk, Małgorzata Jania, Jacek Moskalik, Mateusz Blondel, Philippe Deane, Grant B. |
author_sort |
Tęgowski, Jarosław |
title |
Monitoring Glacier Calving using Underwater Sound |
title_short |
Monitoring Glacier Calving using Underwater Sound |
title_full |
Monitoring Glacier Calving using Underwater Sound |
title_fullStr |
Monitoring Glacier Calving using Underwater Sound |
title_full_unstemmed |
Monitoring Glacier Calving using Underwater Sound |
title_sort |
monitoring glacier calving using underwater sound |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/egusphere-2023-115 https://noa.gwlb.de/receive/cop_mods_00064941 https://egusphere.copernicus.org/preprints/egusphere-2023-115/egusphere-2023-115.pdf |
long_lat |
ENVELOPE(15.650,15.650,77.075,77.075) |
geographic |
Arctic Hansbreen Svalbard |
geographic_facet |
Arctic Hansbreen Svalbard |
genre |
Arctic glacier Iceberg* Svalbard Tidewater |
genre_facet |
Arctic glacier Iceberg* Svalbard Tidewater |
op_relation |
https://doi.org/10.5194/egusphere-2023-115 https://noa.gwlb.de/receive/cop_mods_00064941 https://egusphere.copernicus.org/preprints/egusphere-2023-115/egusphere-2023-115.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/restrictedAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/egusphere-2023-115 |
_version_ |
1766329919755780096 |