Supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics
Ice cliffs and ponds on debris-covered glaciers have received increased attention due to their role in amplifying local melt. However, very few studies have looked at these features on the catchment scale to determine their patterns and changes in space and time. We have compiled a detailed inventor...
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International Glaciological Society
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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/361970 2023-05-15T16:57:37+02:00 Supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics Steiner, Jakob F. Buri, Pascal Miles, Evan S. Ragettli, Silvan Pellicciotti, Francesca 2019-08 application/application/pdf https://hdl.handle.net/20.500.11850/361970 https://doi.org/10.3929/ethz-b-000361970 en eng International Glaciological Society info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2019.40 info:eu-repo/semantics/altIdentifier/wos/000482507800009 info:eu-repo/grantAgreement/SNF/Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)/146761 http://hdl.handle.net/20.500.11850/361970 doi:10.3929/ethz-b-000361970 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International CC-BY-NC-ND Journal of Glaciology, 65 (252) Debris-covered glaciers Glacier mapping Melt-surface Mountain glaciers Remote sensing info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2019 ftethz https://doi.org/20.500.11850/361970 https://doi.org/10.3929/ethz-b-000361970 https://doi.org/10.1017/jog.2019.40 2022-04-25T13:54:04Z Ice cliffs and ponds on debris-covered glaciers have received increased attention due to their role in amplifying local melt. However, very few studies have looked at these features on the catchment scale to determine their patterns and changes in space and time. We have compiled a detailed inventory of cliffs and ponds in the Langtang catchment, central Himalaya, from six high-resolution satellite orthoimages and DEMs between 2006 and 2015, and a historic orthophoto from 1974. Cliffs cover between 1.4% (± 0.4%) in the dry and 3.4% (± 0.9%) in the wet seasons and ponds between 0.6% (± 0.1%) and 1.6% (± 0.3%) of the total debris-covered tongues. We find large variations between seasons, as cliffs and ponds tend to grow in the wetter monsoon period, but there is no obvious trend in total area over the study period. The inventory further shows that cliffs are predominately north-facing irrespective of the glacier flow direction. Both cliffs and ponds appear in higher densities several hundred metres from the terminus in areas where tributaries reach the main glacier tongue. On the largest glacier in the catchment ~10% of all cliffs and ponds persisted over nearly a decade. ISSN:0022-1430 ISSN:1727-5652 Article in Journal/Newspaper Journal of Glaciology ETH Zürich Research Collection |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
topic |
Debris-covered glaciers Glacier mapping Melt-surface Mountain glaciers Remote sensing |
spellingShingle |
Debris-covered glaciers Glacier mapping Melt-surface Mountain glaciers Remote sensing Steiner, Jakob F. Buri, Pascal Miles, Evan S. Ragettli, Silvan Pellicciotti, Francesca Supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics |
topic_facet |
Debris-covered glaciers Glacier mapping Melt-surface Mountain glaciers Remote sensing |
description |
Ice cliffs and ponds on debris-covered glaciers have received increased attention due to their role in amplifying local melt. However, very few studies have looked at these features on the catchment scale to determine their patterns and changes in space and time. We have compiled a detailed inventory of cliffs and ponds in the Langtang catchment, central Himalaya, from six high-resolution satellite orthoimages and DEMs between 2006 and 2015, and a historic orthophoto from 1974. Cliffs cover between 1.4% (± 0.4%) in the dry and 3.4% (± 0.9%) in the wet seasons and ponds between 0.6% (± 0.1%) and 1.6% (± 0.3%) of the total debris-covered tongues. We find large variations between seasons, as cliffs and ponds tend to grow in the wetter monsoon period, but there is no obvious trend in total area over the study period. The inventory further shows that cliffs are predominately north-facing irrespective of the glacier flow direction. Both cliffs and ponds appear in higher densities several hundred metres from the terminus in areas where tributaries reach the main glacier tongue. On the largest glacier in the catchment ~10% of all cliffs and ponds persisted over nearly a decade. ISSN:0022-1430 ISSN:1727-5652 |
format |
Article in Journal/Newspaper |
author |
Steiner, Jakob F. Buri, Pascal Miles, Evan S. Ragettli, Silvan Pellicciotti, Francesca |
author_facet |
Steiner, Jakob F. Buri, Pascal Miles, Evan S. Ragettli, Silvan Pellicciotti, Francesca |
author_sort |
Steiner, Jakob F. |
title |
Supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics |
title_short |
Supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics |
title_full |
Supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics |
title_fullStr |
Supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics |
title_full_unstemmed |
Supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics |
title_sort |
supraglacial ice cliffs and ponds on debris-covered glaciers: spatio-temporal distribution and characteristics |
publisher |
International Glaciological Society |
publishDate |
2019 |
url |
https://hdl.handle.net/20.500.11850/361970 https://doi.org/10.3929/ethz-b-000361970 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, 65 (252) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/jog.2019.40 info:eu-repo/semantics/altIdentifier/wos/000482507800009 info:eu-repo/grantAgreement/SNF/Projektförderung in Mathematik, Natur- und Ingenieurwissenschaften (Abteilung II)/146761 http://hdl.handle.net/20.500.11850/361970 doi:10.3929/ethz-b-000361970 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/20.500.11850/361970 https://doi.org/10.3929/ethz-b-000361970 https://doi.org/10.1017/jog.2019.40 |
_version_ |
1766049178822115328 |