Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry
Mass losses originating from supraglacial ice cliffs at the lower tongues of debris-covered glaciers are a potentially large component of the mass balance, but have rarely been quantified. In this study, we develop a method to estimate ice cliff volume losses based on high-resolution topographic dat...
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Cambridge University Press
2016
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Online Access: | https://eprints.whiterose.ac.uk/113670/ https://eprints.whiterose.ac.uk/113670/1/div-class-title-quantifying-volume-loss-from-ice-cliffs-on-debris-covered-glaciers-using-high-resolution-terrestrial-and-aerial-photogrammetry-div.pdf https://doi.org/10.1017/jog.2016.54 |
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ftleedsuniv:oai:eprints.whiterose.ac.uk:113670 2023-05-15T16:57:39+02:00 Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry Brun, F Buri, P Miles, ES Wagnon, P Steiner, J Berthier, E Ragettli, S Kraaijenbrink, P Immerzeel, WW Pellicciotti, F 2016-08-01 text https://eprints.whiterose.ac.uk/113670/ https://eprints.whiterose.ac.uk/113670/1/div-class-title-quantifying-volume-loss-from-ice-cliffs-on-debris-covered-glaciers-using-high-resolution-terrestrial-and-aerial-photogrammetry-div.pdf https://doi.org/10.1017/jog.2016.54 en eng Cambridge University Press https://eprints.whiterose.ac.uk/113670/1/div-class-title-quantifying-volume-loss-from-ice-cliffs-on-debris-covered-glaciers-using-high-resolution-terrestrial-and-aerial-photogrammetry-div.pdf Brun, F, Buri, P, Miles, ES orcid.org/0000-0001-5446-8571 et al. (7 more authors) (2016) Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry. Journal of Glaciology, 62 (234). pp. 684-695. ISSN 0022-1430 Article NonPeerReviewed 2016 ftleedsuniv https://doi.org/10.1017/jog.2016.54 2023-01-30T21:52:44Z Mass losses originating from supraglacial ice cliffs at the lower tongues of debris-covered glaciers are a potentially large component of the mass balance, but have rarely been quantified. In this study, we develop a method to estimate ice cliff volume losses based on high-resolution topographic data derived from terrestrial and aerial photogrammetry. We apply our method to six cliffs monitored in May and October 2013 and 2014 using four different topographic datasets collected over the debris-covered Lirung Glacier of the Nepalese Himalayas. During the monsoon, the cliff mean backwasting rate was relatively consistent in 2013 (3.8 ± 0.3 cm w.e. d−1) and more heterogeneous among cliffs in 2014 (3.1 ± 0.7 cm w.e. d−1), and the geometric variations between cliffs are larger. Their mean backwasting rate is significantly lower in winter (October 2013–May 2014), at 1.0 ± 0.3 cm w.e. d−1. These results are consistent with estimates of cliff ablation from an energy-balance model developed in a previous study. The ice cliffs lose mass at rates six times higher than estimates of glacier-wide melt under debris, which seems to confirm that ice cliffs provide a large contribution to total glacier melt. Article in Journal/Newspaper Journal of Glaciology White Rose Research Online (Universities of Leeds, Sheffield & York) Journal of Glaciology 62 234 684 695 |
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Open Polar |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
op_collection_id |
ftleedsuniv |
language |
English |
description |
Mass losses originating from supraglacial ice cliffs at the lower tongues of debris-covered glaciers are a potentially large component of the mass balance, but have rarely been quantified. In this study, we develop a method to estimate ice cliff volume losses based on high-resolution topographic data derived from terrestrial and aerial photogrammetry. We apply our method to six cliffs monitored in May and October 2013 and 2014 using four different topographic datasets collected over the debris-covered Lirung Glacier of the Nepalese Himalayas. During the monsoon, the cliff mean backwasting rate was relatively consistent in 2013 (3.8 ± 0.3 cm w.e. d−1) and more heterogeneous among cliffs in 2014 (3.1 ± 0.7 cm w.e. d−1), and the geometric variations between cliffs are larger. Their mean backwasting rate is significantly lower in winter (October 2013–May 2014), at 1.0 ± 0.3 cm w.e. d−1. These results are consistent with estimates of cliff ablation from an energy-balance model developed in a previous study. The ice cliffs lose mass at rates six times higher than estimates of glacier-wide melt under debris, which seems to confirm that ice cliffs provide a large contribution to total glacier melt. |
format |
Article in Journal/Newspaper |
author |
Brun, F Buri, P Miles, ES Wagnon, P Steiner, J Berthier, E Ragettli, S Kraaijenbrink, P Immerzeel, WW Pellicciotti, F |
spellingShingle |
Brun, F Buri, P Miles, ES Wagnon, P Steiner, J Berthier, E Ragettli, S Kraaijenbrink, P Immerzeel, WW Pellicciotti, F Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry |
author_facet |
Brun, F Buri, P Miles, ES Wagnon, P Steiner, J Berthier, E Ragettli, S Kraaijenbrink, P Immerzeel, WW Pellicciotti, F |
author_sort |
Brun, F |
title |
Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry |
title_short |
Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry |
title_full |
Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry |
title_fullStr |
Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry |
title_full_unstemmed |
Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry |
title_sort |
quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry |
publisher |
Cambridge University Press |
publishDate |
2016 |
url |
https://eprints.whiterose.ac.uk/113670/ https://eprints.whiterose.ac.uk/113670/1/div-class-title-quantifying-volume-loss-from-ice-cliffs-on-debris-covered-glaciers-using-high-resolution-terrestrial-and-aerial-photogrammetry-div.pdf https://doi.org/10.1017/jog.2016.54 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_relation |
https://eprints.whiterose.ac.uk/113670/1/div-class-title-quantifying-volume-loss-from-ice-cliffs-on-debris-covered-glaciers-using-high-resolution-terrestrial-and-aerial-photogrammetry-div.pdf Brun, F, Buri, P, Miles, ES orcid.org/0000-0001-5446-8571 et al. (7 more authors) (2016) Quantifying volume loss from ice cliffs on debris-covered glaciers using high-resolution terrestrial and aerial photogrammetry. Journal of Glaciology, 62 (234). pp. 684-695. ISSN 0022-1430 |
op_doi |
https://doi.org/10.1017/jog.2016.54 |
container_title |
Journal of Glaciology |
container_volume |
62 |
container_issue |
234 |
container_start_page |
684 |
op_container_end_page |
695 |
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1766049219605430272 |