Long-term firn and mass balance modelling for Abramov Glacier in the data-scarce Pamir Alay
Several studies identified heterogeneous glacier mass changes in western High Mountain Asia over the last decades. Causes for these mass change patterns are still not fully understood. Modelling the physical interactions between glacier surface and atmosphere over several decades can provide insight...
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Copernicus Publications
2022
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Online Access: | https://doi.org/10.5194/tc-16-5001-2022 https://doaj.org/article/c7e839fb26f9446eba789984596a8f99 |
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ftdoajarticles:oai:doaj.org/article:c7e839fb26f9446eba789984596a8f99 2023-05-15T18:32:26+02:00 Long-term firn and mass balance modelling for Abramov Glacier in the data-scarce Pamir Alay M. Kronenberg W. van Pelt H. Machguth J. Fiddes M. Hoelzle F. Pertziger 2022-12-01T00:00:00Z https://doi.org/10.5194/tc-16-5001-2022 https://doaj.org/article/c7e839fb26f9446eba789984596a8f99 EN eng Copernicus Publications https://tc.copernicus.org/articles/16/5001/2022/tc-16-5001-2022.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-16-5001-2022 1994-0416 1994-0424 https://doaj.org/article/c7e839fb26f9446eba789984596a8f99 The Cryosphere, Vol 16, Pp 5001-5022 (2022) Environmental sciences GE1-350 Geology QE1-996.5 article 2022 ftdoajarticles https://doi.org/10.5194/tc-16-5001-2022 2022-12-30T20:02:23Z Several studies identified heterogeneous glacier mass changes in western High Mountain Asia over the last decades. Causes for these mass change patterns are still not fully understood. Modelling the physical interactions between glacier surface and atmosphere over several decades can provide insight into relevant processes. Such model applications, however, have data needs which are usually not met in these data-scarce regions. Exceptionally detailed glaciological and meteorological data exist for the Abramov Glacier in the Pamir Alay range. In this study, we use weather station measurements in combination with downscaled reanalysis data to force a coupled surface energy balance–multilayer subsurface model for Abramov Glacier for 52 years. Available in situ data are used for model calibration and validation. We find an overall negative mass balance of − 0.27 <math xmlns="http://www.w3.org/1998/Math/MathML" id="M2" display="inline" overflow="scroll" dspmath="mathml"><mrow class="unit"><mi mathvariant="normal">m</mi><mspace width="0.125em" linebreak="nobreak"/><mi mathvariant="normal">w</mi><mo>.</mo><mi mathvariant="normal">e</mi><mo>.</mo><mspace width="0.125em" linebreak="nobreak"/><msup><mi mathvariant="normal">a</mi><mrow><mo>-</mo><mn mathvariant="normal">1</mn></mrow></msup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="49pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="a363b89ad95c3c132ed581b9cba39096"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-16-5001-2022-ie00001.svg" width="49pt" height="13pt" src="tc-16-5001-2022-ie00001.png"/></svg:svg> for 1968/1969–2019/2020 and a loss of firn pore space causing a reduction of internal accumulation. Despite increasing air temperatures, we do not find an acceleration of glacier-wide mass loss over time. Such an acceleration is ... Article in Journal/Newspaper The Cryosphere Directory of Open Access Journals: DOAJ Articles The Cryosphere 16 12 5001 5022 |
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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 |
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Environmental sciences GE1-350 Geology QE1-996.5 M. Kronenberg W. van Pelt H. Machguth J. Fiddes M. Hoelzle F. Pertziger Long-term firn and mass balance modelling for Abramov Glacier in the data-scarce Pamir Alay |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Several studies identified heterogeneous glacier mass changes in western High Mountain Asia over the last decades. Causes for these mass change patterns are still not fully understood. Modelling the physical interactions between glacier surface and atmosphere over several decades can provide insight into relevant processes. Such model applications, however, have data needs which are usually not met in these data-scarce regions. Exceptionally detailed glaciological and meteorological data exist for the Abramov Glacier in the Pamir Alay range. In this study, we use weather station measurements in combination with downscaled reanalysis data to force a coupled surface energy balance–multilayer subsurface model for Abramov Glacier for 52 years. Available in situ data are used for model calibration and validation. We find an overall negative mass balance of − 0.27 <math xmlns="http://www.w3.org/1998/Math/MathML" id="M2" display="inline" overflow="scroll" dspmath="mathml"><mrow class="unit"><mi mathvariant="normal">m</mi><mspace width="0.125em" linebreak="nobreak"/><mi mathvariant="normal">w</mi><mo>.</mo><mi mathvariant="normal">e</mi><mo>.</mo><mspace width="0.125em" linebreak="nobreak"/><msup><mi mathvariant="normal">a</mi><mrow><mo>-</mo><mn mathvariant="normal">1</mn></mrow></msup></mrow></math> <svg:svg xmlns:svg="http://www.w3.org/2000/svg" width="49pt" height="13pt" class="svg-formula" dspmath="mathimg" md5hash="a363b89ad95c3c132ed581b9cba39096"><svg:image xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="tc-16-5001-2022-ie00001.svg" width="49pt" height="13pt" src="tc-16-5001-2022-ie00001.png"/></svg:svg> for 1968/1969–2019/2020 and a loss of firn pore space causing a reduction of internal accumulation. Despite increasing air temperatures, we do not find an acceleration of glacier-wide mass loss over time. Such an acceleration is ... |
format |
Article in Journal/Newspaper |
author |
M. Kronenberg W. van Pelt H. Machguth J. Fiddes M. Hoelzle F. Pertziger |
author_facet |
M. Kronenberg W. van Pelt H. Machguth J. Fiddes M. Hoelzle F. Pertziger |
author_sort |
M. Kronenberg |
title |
Long-term firn and mass balance modelling for Abramov Glacier in the data-scarce Pamir Alay |
title_short |
Long-term firn and mass balance modelling for Abramov Glacier in the data-scarce Pamir Alay |
title_full |
Long-term firn and mass balance modelling for Abramov Glacier in the data-scarce Pamir Alay |
title_fullStr |
Long-term firn and mass balance modelling for Abramov Glacier in the data-scarce Pamir Alay |
title_full_unstemmed |
Long-term firn and mass balance modelling for Abramov Glacier in the data-scarce Pamir Alay |
title_sort |
long-term firn and mass balance modelling for abramov glacier in the data-scarce pamir alay |
publisher |
Copernicus Publications |
publishDate |
2022 |
url |
https://doi.org/10.5194/tc-16-5001-2022 https://doaj.org/article/c7e839fb26f9446eba789984596a8f99 |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 16, Pp 5001-5022 (2022) |
op_relation |
https://tc.copernicus.org/articles/16/5001/2022/tc-16-5001-2022.pdf https://doaj.org/toc/1994-0416 https://doaj.org/toc/1994-0424 doi:10.5194/tc-16-5001-2022 1994-0416 1994-0424 https://doaj.org/article/c7e839fb26f9446eba789984596a8f99 |
op_doi |
https://doi.org/10.5194/tc-16-5001-2022 |
container_title |
The Cryosphere |
container_volume |
16 |
container_issue |
12 |
container_start_page |
5001 |
op_container_end_page |
5022 |
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1766216547979755520 |