Long-Term Monitoring and Change Analysis of Pine Island Ice Shelf Based on Multi-Source Satellite Observations during 1973–2020
Pine Island Glacier (PIG) is one of the largest contributors to sea level rise in Antarctica. Continuous thinning and frequent calving imply significant destabilization of Pine Island Glacier Ice Shelf (PIGIS). To understand the mechanism of its accelerated disintegration and its future development,...
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2022
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Online Access: | https://doi.org/10.3390/jmse10070976 https://doaj.org/article/ca5aef974a7743de8b21af2f8b9b86ba |
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ftdoajarticles:oai:doaj.org/article:ca5aef974a7743de8b21af2f8b9b86ba 2023-05-15T14:00:38+02:00 Long-Term Monitoring and Change Analysis of Pine Island Ice Shelf Based on Multi-Source Satellite Observations during 1973–2020 Shijie Liu Shu Su Yuan Cheng Xiaohua Tong Rongxing Li 2022-07-01T00:00:00Z https://doi.org/10.3390/jmse10070976 https://doaj.org/article/ca5aef974a7743de8b21af2f8b9b86ba EN eng MDPI AG https://www.mdpi.com/2077-1312/10/7/976 https://doaj.org/toc/2077-1312 doi:10.3390/jmse10070976 2077-1312 https://doaj.org/article/ca5aef974a7743de8b21af2f8b9b86ba Journal of Marine Science and Engineering, Vol 10, Iss 976, p 976 (2022) Pine Island Glacier Ice Shelf ice flow velocity ocean water temperature ice shelf disintegration multi-source remote sensing Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 article 2022 ftdoajarticles https://doi.org/10.3390/jmse10070976 2022-12-30T23:49:48Z Pine Island Glacier (PIG) is one of the largest contributors to sea level rise in Antarctica. Continuous thinning and frequent calving imply significant destabilization of Pine Island Glacier Ice Shelf (PIGIS). To understand the mechanism of its accelerated disintegration and its future development, we conducted a long-term monitoring and comprehensive analysis of PIGIS, including ice flow velocity, ice shelf fronts, ocean water temperature, rifts, and surface strain rates, based on multi-source satellite observations during 1973–2020. The results reveal that: (1) ice flow velocities of PIGIS increased from 2.3 km/yr in 1973 to 4.5 km/yr in 2020, with two rapid acceleration periods of 1995–2009 and 2017–2020, and its change was highly correlated to the ocean water temperature variation. (2) At least 13 calving events occurred during 1973–2020, with four unprecedented successive retreats in 2015, 2017, 2018, and 2020. (3) The acceleration of ice shelf rifting and calving may correlate to the destruction of shear margins, while this damage was likely a response to the warming of bottom seawater. The weakening southern shear margin may continue to recede, indicating that the instability of PIGIS will continue. Article in Journal/Newspaper Antarc* Antarctica Ice Shelf Pine Island Pine Island Glacier Directory of Open Access Journals: DOAJ Articles Pine Island Glacier ENVELOPE(-101.000,-101.000,-75.000,-75.000) Journal of Marine Science and Engineering 10 7 976 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Pine Island Glacier Ice Shelf ice flow velocity ocean water temperature ice shelf disintegration multi-source remote sensing Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
spellingShingle |
Pine Island Glacier Ice Shelf ice flow velocity ocean water temperature ice shelf disintegration multi-source remote sensing Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 Shijie Liu Shu Su Yuan Cheng Xiaohua Tong Rongxing Li Long-Term Monitoring and Change Analysis of Pine Island Ice Shelf Based on Multi-Source Satellite Observations during 1973–2020 |
topic_facet |
Pine Island Glacier Ice Shelf ice flow velocity ocean water temperature ice shelf disintegration multi-source remote sensing Naval architecture. Shipbuilding. Marine engineering VM1-989 Oceanography GC1-1581 |
description |
Pine Island Glacier (PIG) is one of the largest contributors to sea level rise in Antarctica. Continuous thinning and frequent calving imply significant destabilization of Pine Island Glacier Ice Shelf (PIGIS). To understand the mechanism of its accelerated disintegration and its future development, we conducted a long-term monitoring and comprehensive analysis of PIGIS, including ice flow velocity, ice shelf fronts, ocean water temperature, rifts, and surface strain rates, based on multi-source satellite observations during 1973–2020. The results reveal that: (1) ice flow velocities of PIGIS increased from 2.3 km/yr in 1973 to 4.5 km/yr in 2020, with two rapid acceleration periods of 1995–2009 and 2017–2020, and its change was highly correlated to the ocean water temperature variation. (2) At least 13 calving events occurred during 1973–2020, with four unprecedented successive retreats in 2015, 2017, 2018, and 2020. (3) The acceleration of ice shelf rifting and calving may correlate to the destruction of shear margins, while this damage was likely a response to the warming of bottom seawater. The weakening southern shear margin may continue to recede, indicating that the instability of PIGIS will continue. |
format |
Article in Journal/Newspaper |
author |
Shijie Liu Shu Su Yuan Cheng Xiaohua Tong Rongxing Li |
author_facet |
Shijie Liu Shu Su Yuan Cheng Xiaohua Tong Rongxing Li |
author_sort |
Shijie Liu |
title |
Long-Term Monitoring and Change Analysis of Pine Island Ice Shelf Based on Multi-Source Satellite Observations during 1973–2020 |
title_short |
Long-Term Monitoring and Change Analysis of Pine Island Ice Shelf Based on Multi-Source Satellite Observations during 1973–2020 |
title_full |
Long-Term Monitoring and Change Analysis of Pine Island Ice Shelf Based on Multi-Source Satellite Observations during 1973–2020 |
title_fullStr |
Long-Term Monitoring and Change Analysis of Pine Island Ice Shelf Based on Multi-Source Satellite Observations during 1973–2020 |
title_full_unstemmed |
Long-Term Monitoring and Change Analysis of Pine Island Ice Shelf Based on Multi-Source Satellite Observations during 1973–2020 |
title_sort |
long-term monitoring and change analysis of pine island ice shelf based on multi-source satellite observations during 1973–2020 |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/jmse10070976 https://doaj.org/article/ca5aef974a7743de8b21af2f8b9b86ba |
long_lat |
ENVELOPE(-101.000,-101.000,-75.000,-75.000) |
geographic |
Pine Island Glacier |
geographic_facet |
Pine Island Glacier |
genre |
Antarc* Antarctica Ice Shelf Pine Island Pine Island Glacier |
genre_facet |
Antarc* Antarctica Ice Shelf Pine Island Pine Island Glacier |
op_source |
Journal of Marine Science and Engineering, Vol 10, Iss 976, p 976 (2022) |
op_relation |
https://www.mdpi.com/2077-1312/10/7/976 https://doaj.org/toc/2077-1312 doi:10.3390/jmse10070976 2077-1312 https://doaj.org/article/ca5aef974a7743de8b21af2f8b9b86ba |
op_doi |
https://doi.org/10.3390/jmse10070976 |
container_title |
Journal of Marine Science and Engineering |
container_volume |
10 |
container_issue |
7 |
container_start_page |
976 |
_version_ |
1766269869380075520 |