Ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array
Studying seismic sources and wave propagation in ice plates can provide valuable insights into understanding various processes, such as ice structure dynamics, migration, fracture mechanics and mass balance. However, the harsh environment makes it difficult to conduct in situ dense seismic observati...
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ftdoajarticles:oai:doaj.org/article:f451cee2008a47a48a5d1090ea36a112 2024-09-15T18:12:27+00:00 Ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array J. Xie X. Zeng C. Liang S. Ni R. Chu F. Bao R. Lin B. Chi H. Lv 2024-02-01T00:00:00Z https://doi.org/10.5194/tc-18-837-2024 https://doaj.org/article/f451cee2008a47a48a5d1090ea36a112 EN eng Copernicus Publications https://tc.copernicus.org/articles/18/837/2024/tc-18-837-2024.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-18-837-2024 1994-0416 1994-0424 https://doaj.org/article/f451cee2008a47a48a5d1090ea36a112 The Cryosphere, Vol 18, Pp 837-847 (2024) Environmental sciences GE1-350 Geology QE1-996.5 article 2024 ftdoajarticles https://doi.org/10.5194/tc-18-837-2024 2024-08-05T17:49:59Z Studying seismic sources and wave propagation in ice plates can provide valuable insights into understanding various processes, such as ice structure dynamics, migration, fracture mechanics and mass balance. However, the harsh environment makes it difficult to conduct in situ dense seismic observations. Consequently, our understanding of the dynamic changes within the ice sheet remains insufficient. We conducted a seismic experiment using a distributed acoustic sensing (DAS) array on a frozen lake, exciting water vibrations through underwater airgun shots. By employing an artificial intelligence method, we were able to detect seismic events that include both high-frequency icequakes and low-frequency events. The icequakes clustered along ice fractures and their activity correlated with local temperature variations. The waveforms of low-frequency events exhibit characteristics of flexural-gravity waves, which offers insights into the properties of the ice plate. Our study demonstrates the effectiveness of an DAS array as an in situ dense seismic network for investigating the internal failure process and dynamic deformation of ice plates such as the ice shelf, which may contribute to an enhanced comprehension and prediction of ice shelf disintegration. Article in Journal/Newspaper Ice Sheet Ice Shelf The Cryosphere Directory of Open Access Journals: DOAJ Articles The Cryosphere 18 2 837 847 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 J. Xie X. Zeng C. Liang S. Ni R. Chu F. Bao R. Lin B. Chi H. Lv Ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Studying seismic sources and wave propagation in ice plates can provide valuable insights into understanding various processes, such as ice structure dynamics, migration, fracture mechanics and mass balance. However, the harsh environment makes it difficult to conduct in situ dense seismic observations. Consequently, our understanding of the dynamic changes within the ice sheet remains insufficient. We conducted a seismic experiment using a distributed acoustic sensing (DAS) array on a frozen lake, exciting water vibrations through underwater airgun shots. By employing an artificial intelligence method, we were able to detect seismic events that include both high-frequency icequakes and low-frequency events. The icequakes clustered along ice fractures and their activity correlated with local temperature variations. The waveforms of low-frequency events exhibit characteristics of flexural-gravity waves, which offers insights into the properties of the ice plate. Our study demonstrates the effectiveness of an DAS array as an in situ dense seismic network for investigating the internal failure process and dynamic deformation of ice plates such as the ice shelf, which may contribute to an enhanced comprehension and prediction of ice shelf disintegration. |
format |
Article in Journal/Newspaper |
author |
J. Xie X. Zeng C. Liang S. Ni R. Chu F. Bao R. Lin B. Chi H. Lv |
author_facet |
J. Xie X. Zeng C. Liang S. Ni R. Chu F. Bao R. Lin B. Chi H. Lv |
author_sort |
J. Xie |
title |
Ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array |
title_short |
Ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array |
title_full |
Ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array |
title_fullStr |
Ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array |
title_full_unstemmed |
Ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array |
title_sort |
ice plate deformation and cracking revealed by an in situ-distributed acoustic sensing array |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/tc-18-837-2024 https://doaj.org/article/f451cee2008a47a48a5d1090ea36a112 |
genre |
Ice Sheet Ice Shelf The Cryosphere |
genre_facet |
Ice Sheet Ice Shelf The Cryosphere |
op_source |
The Cryosphere, Vol 18, Pp 837-847 (2024) |
op_relation |
https://tc.copernicus.org/articles/18/837/2024/tc-18-837-2024.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-18-837-2024 1994-0416 1994-0424 https://doaj.org/article/f451cee2008a47a48a5d1090ea36a112 |
op_doi |
https://doi.org/10.5194/tc-18-837-2024 |
container_title |
The Cryosphere |
container_volume |
18 |
container_issue |
2 |
container_start_page |
837 |
op_container_end_page |
847 |
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1810450036337672192 |