Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations
Glacier surface mass balance observations in the Tien Shan and Pamir are relatively sparse and often discontinuous. Nevertheless, glaciers are one of the most important components of the high-mountain cryosphere in the region as they strongly influence water availability in the arid, continental and...
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Copernicus Publications
2018
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fttriple:oai:gotriple.eu:oai:doaj.org/article:5bf400e7a80e405baab794ae001165b9 2023-05-15T18:32:18+02:00 Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations M. Barandun M. Huss R. Usubaliev E. Azisov E. Berthier A. Kääb T. Bolch M. Hoelzle 2018-06-01 https://doi.org/10.5194/tc-12-1899-2018 https://www.the-cryosphere.net/12/1899/2018/tc-12-1899-2018.pdf https://doaj.org/article/5bf400e7a80e405baab794ae001165b9 en eng Copernicus Publications doi:10.5194/tc-12-1899-2018 1994-0416 1994-0424 https://www.the-cryosphere.net/12/1899/2018/tc-12-1899-2018.pdf https://doaj.org/article/5bf400e7a80e405baab794ae001165b9 undefined The Cryosphere, Vol 12, Pp 1899-1919 (2018) envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.5194/tc-12-1899-2018 2023-01-22T19:32:06Z Glacier surface mass balance observations in the Tien Shan and Pamir are relatively sparse and often discontinuous. Nevertheless, glaciers are one of the most important components of the high-mountain cryosphere in the region as they strongly influence water availability in the arid, continental and intensely populated downstream areas. This study provides reliable and continuous surface mass balance series for selected glaciers located in the Tien Shan and Pamir-Alay. By cross-validating the results of three independent methods, we reconstructed the mass balance of the three benchmark glaciers, Abramov, Golubin and Glacier no. 354 for the past 2 decades. By applying different approaches, it was possible to compensate for the limitations and shortcomings of each individual method. This study proposes the use of transient snow line observations throughout the melt season obtained from satellite optical imagery and terrestrial automatic cameras. By combining modelling with remotely acquired information on summer snow depletion, it was possible to infer glacier mass changes for unmeasured years. The model is initialized with daily temperature and precipitation data collected at automatic weather stations in the vicinity of the glacier or with adjusted data from climate reanalysis products. Multi-annual mass changes based on high-resolution digital elevation models and in situ glaciological surveys were used to validate the results for the investigated glaciers. Substantial surface mass loss was confirmed for the three studied glaciers by all three methods, ranging from −0.30 ± 0.19 to −0.41 ± 0.33 m w.e. yr−1 over the 2004–2016 period. Our results indicate that integration of snow line observations into mass balance modelling significantly narrows the uncertainty ranges of the estimates. Hence, this highlights the potential of the methodology for application to unmonitored glaciers at larger scales for which no direct measurements are available. Article in Journal/Newspaper The Cryosphere Unknown Narrows The ENVELOPE(-67.167,-67.167,-67.617,-67.617) The Cryosphere 12 6 1899 1919 |
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Open Polar |
collection |
Unknown |
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fttriple |
language |
English |
topic |
envir geo |
spellingShingle |
envir geo M. Barandun M. Huss R. Usubaliev E. Azisov E. Berthier A. Kääb T. Bolch M. Hoelzle Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations |
topic_facet |
envir geo |
description |
Glacier surface mass balance observations in the Tien Shan and Pamir are relatively sparse and often discontinuous. Nevertheless, glaciers are one of the most important components of the high-mountain cryosphere in the region as they strongly influence water availability in the arid, continental and intensely populated downstream areas. This study provides reliable and continuous surface mass balance series for selected glaciers located in the Tien Shan and Pamir-Alay. By cross-validating the results of three independent methods, we reconstructed the mass balance of the three benchmark glaciers, Abramov, Golubin and Glacier no. 354 for the past 2 decades. By applying different approaches, it was possible to compensate for the limitations and shortcomings of each individual method. This study proposes the use of transient snow line observations throughout the melt season obtained from satellite optical imagery and terrestrial automatic cameras. By combining modelling with remotely acquired information on summer snow depletion, it was possible to infer glacier mass changes for unmeasured years. The model is initialized with daily temperature and precipitation data collected at automatic weather stations in the vicinity of the glacier or with adjusted data from climate reanalysis products. Multi-annual mass changes based on high-resolution digital elevation models and in situ glaciological surveys were used to validate the results for the investigated glaciers. Substantial surface mass loss was confirmed for the three studied glaciers by all three methods, ranging from −0.30 ± 0.19 to −0.41 ± 0.33 m w.e. yr−1 over the 2004–2016 period. Our results indicate that integration of snow line observations into mass balance modelling significantly narrows the uncertainty ranges of the estimates. Hence, this highlights the potential of the methodology for application to unmonitored glaciers at larger scales for which no direct measurements are available. |
format |
Article in Journal/Newspaper |
author |
M. Barandun M. Huss R. Usubaliev E. Azisov E. Berthier A. Kääb T. Bolch M. Hoelzle |
author_facet |
M. Barandun M. Huss R. Usubaliev E. Azisov E. Berthier A. Kääb T. Bolch M. Hoelzle |
author_sort |
M. Barandun |
title |
Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations |
title_short |
Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations |
title_full |
Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations |
title_fullStr |
Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations |
title_full_unstemmed |
Multi-decadal mass balance series of three Kyrgyz glaciers inferred from modelling constrained with repeated snow line observations |
title_sort |
multi-decadal mass balance series of three kyrgyz glaciers inferred from modelling constrained with repeated snow line observations |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/tc-12-1899-2018 https://www.the-cryosphere.net/12/1899/2018/tc-12-1899-2018.pdf https://doaj.org/article/5bf400e7a80e405baab794ae001165b9 |
long_lat |
ENVELOPE(-67.167,-67.167,-67.617,-67.617) |
geographic |
Narrows The |
geographic_facet |
Narrows The |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 12, Pp 1899-1919 (2018) |
op_relation |
doi:10.5194/tc-12-1899-2018 1994-0416 1994-0424 https://www.the-cryosphere.net/12/1899/2018/tc-12-1899-2018.pdf https://doaj.org/article/5bf400e7a80e405baab794ae001165b9 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-12-1899-2018 |
container_title |
The Cryosphere |
container_volume |
12 |
container_issue |
6 |
container_start_page |
1899 |
op_container_end_page |
1919 |
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1766216405169995776 |