Temporal downscaling of glaciological mass balance using seasonal observations
Abstract Glaciological mass-balance measurements have been the backbone of internationally coordinated glacier monitoring. The resulting annual observations have been used to understand glacier reactions to climate change, and to assess both regional and global glacier mass changes and related contr...
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Cambridge University Press (CUP)
2023
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Online Access: | http://dx.doi.org/10.1017/jog.2023.66 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143023000667 |
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crcambridgeupr:10.1017/jog.2023.66 2024-03-03T08:45:55+00:00 Temporal downscaling of glaciological mass balance using seasonal observations Zemp, Michael Welty, Ethan H2020 European Research Council European Space Agency 2023 http://dx.doi.org/10.1017/jog.2023.66 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143023000667 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology page 1-6 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2023 crcambridgeupr https://doi.org/10.1017/jog.2023.66 2024-02-08T08:37:15Z Abstract Glaciological mass-balance measurements have been the backbone of internationally coordinated glacier monitoring. The resulting annual observations have been used to understand glacier reactions to climate change, and to assess both regional and global glacier mass changes and related contributions to runoff and sea-level rise. However, the comparability of annual observations is hampered by differences in survey periods and mass-balance amplitudes between glaciers, regions and hemispheres. This study presents a simple approach to temporally downscale glaciological mass balance using seasonal observations and sine functions. The proposed analytical model allows reconstruction of the seasonal course of glacier mass balance at weekly to monthly resolution from only annual or seasonal observations. Strengths and limitations of this analytical approach are discussed and compared with results from numerical mass-balance modelling. Potential applications include seasonal corrections of glaciological and geodetic observations and comparisons to monthly results from spaceborne gravimetry and altimetry. Article in Journal/Newspaper Journal of Glaciology Cambridge University Press Journal of Glaciology 1 6 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
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English |
topic |
Earth-Surface Processes |
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Earth-Surface Processes Zemp, Michael Welty, Ethan Temporal downscaling of glaciological mass balance using seasonal observations |
topic_facet |
Earth-Surface Processes |
description |
Abstract Glaciological mass-balance measurements have been the backbone of internationally coordinated glacier monitoring. The resulting annual observations have been used to understand glacier reactions to climate change, and to assess both regional and global glacier mass changes and related contributions to runoff and sea-level rise. However, the comparability of annual observations is hampered by differences in survey periods and mass-balance amplitudes between glaciers, regions and hemispheres. This study presents a simple approach to temporally downscale glaciological mass balance using seasonal observations and sine functions. The proposed analytical model allows reconstruction of the seasonal course of glacier mass balance at weekly to monthly resolution from only annual or seasonal observations. Strengths and limitations of this analytical approach are discussed and compared with results from numerical mass-balance modelling. Potential applications include seasonal corrections of glaciological and geodetic observations and comparisons to monthly results from spaceborne gravimetry and altimetry. |
author2 |
H2020 European Research Council European Space Agency |
format |
Article in Journal/Newspaper |
author |
Zemp, Michael Welty, Ethan |
author_facet |
Zemp, Michael Welty, Ethan |
author_sort |
Zemp, Michael |
title |
Temporal downscaling of glaciological mass balance using seasonal observations |
title_short |
Temporal downscaling of glaciological mass balance using seasonal observations |
title_full |
Temporal downscaling of glaciological mass balance using seasonal observations |
title_fullStr |
Temporal downscaling of glaciological mass balance using seasonal observations |
title_full_unstemmed |
Temporal downscaling of glaciological mass balance using seasonal observations |
title_sort |
temporal downscaling of glaciological mass balance using seasonal observations |
publisher |
Cambridge University Press (CUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1017/jog.2023.66 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143023000667 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology page 1-6 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2023.66 |
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Journal of Glaciology |
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1 |
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6 |
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1792501592923045888 |