Geodetic mass balance of Abramov Glacier from 1975 to 2015
Abstract Multi-decadal mass loss estimates are available for few glaciers of Central Asia. On Abramov Glacier (Pamir-Alay, Kyrgyzstan), comprehensive long-term glaciological measurements have been carried out from 1968 to 1999 and re-initiated in 2011. A climatological interpretation of this benchma...
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ftoslouniv:oai:www.duo.uio.no:10852/92632 2023-05-15T16:57:28+02:00 Geodetic mass balance of Abramov Glacier from 1975 to 2015 Denzinger, Florian Machguth, Horst Barandun, Martina Berthier, Etienne Girod, Luc Kronenberg, Marlene Usubaliev, Ryskul Hoelzle, Martin 2022-02-09T12:59:35Z http://hdl.handle.net/10852/92632 http://urn.nb.no/URN:NBN:no-95221 https://doi.org/10.1017/jog.2020.108 EN eng http://urn.nb.no/URN:NBN:no-95221 Denzinger, Florian Machguth, Horst Barandun, Martina Berthier, Etienne Girod, Luc Kronenberg, Marlene Usubaliev, Ryskul Hoelzle, Martin . Geodetic mass balance of Abramov Glacier from 1975 to 2015. Journal of Glaciology. 2021, 67(262), 331-342 http://hdl.handle.net/10852/92632 1999515 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Glaciology&rft.volume=67&rft.spage=331&rft.date=2021 Journal of Glaciology 67 262 331 342 https://doi.org/10.1017/jog.2020.108 URN:NBN:no-95221 Fulltext https://www.duo.uio.no/bitstream/handle/10852/92632/1/geodetic-mass-balance-of-abramov-glacier-from-1975-to-2015.pdf Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ CC-BY 0022-1430 Journal article Tidsskriftartikkel Peer reviewed PublishedVersion 2022 ftoslouniv https://doi.org/10.1017/jog.2020.108 2022-03-23T23:33:48Z Abstract Multi-decadal mass loss estimates are available for few glaciers of Central Asia. On Abramov Glacier (Pamir-Alay, Kyrgyzstan), comprehensive long-term glaciological measurements have been carried out from 1968 to 1999 and re-initiated in 2011. A climatological interpretation of this benchmark glacier in Central Asia requires bridging the gap between historical and renewed measurements. This is achieved here by computing the geodetic mass balance from 1975 to 2015 using previously unreleased Soviet aerial imagery and Pléaides stereo-imagery. During 1975–2015, Abramov Glacier lost 2.2 km 2 (8.2%) of its area. The mean annual thickness change was − 0.43 ± 0.14 m a −1 for the period 1975–2015, corresponding to a volume change of − 0.45 ± 0.15 km 3 . The average specific geodetic mass balance amounts to − 0.38 ± 0.12 m w . e . a −1 . The 1975–2015 glacier mass loss lies within the range of glaciological and geodetic mass-balance estimates that were previously published for disparate and shorter time intervals since 1968. This study covers a much longer time period than earlier geodetic estimates and demonstrates the capacity to geodetically constrain glacier change at high spatial resolution in Central Asia using historic aerial imagery and Structure from Motion techniques. Therefore, it could serve as a benchmark for future studies of regional mass change. Article in Journal/Newspaper Journal of Glaciology Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Journal of Glaciology 67 262 331 342 |
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Open Polar |
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Universitet i Oslo: Digitale utgivelser ved UiO (DUO) |
op_collection_id |
ftoslouniv |
language |
English |
description |
Abstract Multi-decadal mass loss estimates are available for few glaciers of Central Asia. On Abramov Glacier (Pamir-Alay, Kyrgyzstan), comprehensive long-term glaciological measurements have been carried out from 1968 to 1999 and re-initiated in 2011. A climatological interpretation of this benchmark glacier in Central Asia requires bridging the gap between historical and renewed measurements. This is achieved here by computing the geodetic mass balance from 1975 to 2015 using previously unreleased Soviet aerial imagery and Pléaides stereo-imagery. During 1975–2015, Abramov Glacier lost 2.2 km 2 (8.2%) of its area. The mean annual thickness change was − 0.43 ± 0.14 m a −1 for the period 1975–2015, corresponding to a volume change of − 0.45 ± 0.15 km 3 . The average specific geodetic mass balance amounts to − 0.38 ± 0.12 m w . e . a −1 . The 1975–2015 glacier mass loss lies within the range of glaciological and geodetic mass-balance estimates that were previously published for disparate and shorter time intervals since 1968. This study covers a much longer time period than earlier geodetic estimates and demonstrates the capacity to geodetically constrain glacier change at high spatial resolution in Central Asia using historic aerial imagery and Structure from Motion techniques. Therefore, it could serve as a benchmark for future studies of regional mass change. |
format |
Article in Journal/Newspaper |
author |
Denzinger, Florian Machguth, Horst Barandun, Martina Berthier, Etienne Girod, Luc Kronenberg, Marlene Usubaliev, Ryskul Hoelzle, Martin |
spellingShingle |
Denzinger, Florian Machguth, Horst Barandun, Martina Berthier, Etienne Girod, Luc Kronenberg, Marlene Usubaliev, Ryskul Hoelzle, Martin Geodetic mass balance of Abramov Glacier from 1975 to 2015 |
author_facet |
Denzinger, Florian Machguth, Horst Barandun, Martina Berthier, Etienne Girod, Luc Kronenberg, Marlene Usubaliev, Ryskul Hoelzle, Martin |
author_sort |
Denzinger, Florian |
title |
Geodetic mass balance of Abramov Glacier from 1975 to 2015 |
title_short |
Geodetic mass balance of Abramov Glacier from 1975 to 2015 |
title_full |
Geodetic mass balance of Abramov Glacier from 1975 to 2015 |
title_fullStr |
Geodetic mass balance of Abramov Glacier from 1975 to 2015 |
title_full_unstemmed |
Geodetic mass balance of Abramov Glacier from 1975 to 2015 |
title_sort |
geodetic mass balance of abramov glacier from 1975 to 2015 |
publishDate |
2022 |
url |
http://hdl.handle.net/10852/92632 http://urn.nb.no/URN:NBN:no-95221 https://doi.org/10.1017/jog.2020.108 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
0022-1430 |
op_relation |
http://urn.nb.no/URN:NBN:no-95221 Denzinger, Florian Machguth, Horst Barandun, Martina Berthier, Etienne Girod, Luc Kronenberg, Marlene Usubaliev, Ryskul Hoelzle, Martin . Geodetic mass balance of Abramov Glacier from 1975 to 2015. Journal of Glaciology. 2021, 67(262), 331-342 http://hdl.handle.net/10852/92632 1999515 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Glaciology&rft.volume=67&rft.spage=331&rft.date=2021 Journal of Glaciology 67 262 331 342 https://doi.org/10.1017/jog.2020.108 URN:NBN:no-95221 Fulltext https://www.duo.uio.no/bitstream/handle/10852/92632/1/geodetic-mass-balance-of-abramov-glacier-from-1975-to-2015.pdf |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1017/jog.2020.108 |
container_title |
Journal of Glaciology |
container_volume |
67 |
container_issue |
262 |
container_start_page |
331 |
op_container_end_page |
342 |
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1766049030887964672 |