Lidar measurement of surface melt for a temperate Alpine glacier at the seasonal and hourly scales
This study shows how a new generation of terrestrial laser scanners can be used to investigate glacier surface ablation and other elements of glacial hydrodynamics at exceptionally high spatial and temporal resolution. The study area is an Alpine valley glacier, Haut Glacier d'Arolla, Switzerla...
Published in: | Journal of Glaciology |
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Language: | English |
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Online Access: | https://serval.unil.ch/notice/serval:BIB_DAC3B2DD7905 https://doi.org/10.3189/2015JoG14J226 |
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ftunivlausanne:oai:serval.unil.ch:BIB_DAC3B2DD7905 2024-02-11T10:05:22+01:00 Lidar measurement of surface melt for a temperate Alpine glacier at the seasonal and hourly scales Gabbud, C. Micheletti, N. Lane, S.N. 2015-10 https://serval.unil.ch/notice/serval:BIB_DAC3B2DD7905 https://doi.org/10.3189/2015JoG14J226 eng eng info:eu-repo/semantics/altIdentifier/doi/10.3189/2015JoG14J226 https://serval.unil.ch/notice/serval:BIB_DAC3B2DD7905 doi:10.3189/2015JoG14J226 urn:issn:0022-1430 Journal of Glaciology, vol. 61, no. 229, pp. 963-974 glacier fluctuations glacier hydrology glacier modelling mountain glaciers remote sensing terrestrial laser scanning info:eu-repo/semantics/article article 2015 ftunivlausanne https://doi.org/10.3189/2015JoG14J226 2024-01-22T00:57:29Z This study shows how a new generation of terrestrial laser scanners can be used to investigate glacier surface ablation and other elements of glacial hydrodynamics at exceptionally high spatial and temporal resolution. The study area is an Alpine valley glacier, Haut Glacier d'Arolla, Switzerland. Here we use an ultra-long-range lidar RIEGL VZ-6000 scanner, having a laser specifically designed for measurement of snow- and ice-cover surfaces. We focus on two timescales: seasonal and daily. Our results show that a near-infrared scanning laser system can provide high-precision elevation change and ablation data from long ranges, and over relatively large sections of the glacier surface. We use it to quantify spatial variations in the patterns of surface melt at the seasonal scale, as controlled by both aspect and differential debris cover. At the daily scale, we quantify the effects of ogive-related differences in ice surface debris content on spatial patterns of ablation. Daily scale measurements point to possible hydraulic jacking of the glacier associated with short-term water pressure rises. This latter demonstration shows that this type of lidar may be used to address subglacial hydrologic questions, in addition to motion and ablation measurements. Article in Journal/Newspaper Journal of Glaciology Université de Lausanne (UNIL): Serval - Serveur académique lausannois Journal of Glaciology 61 229 963 974 |
institution |
Open Polar |
collection |
Université de Lausanne (UNIL): Serval - Serveur académique lausannois |
op_collection_id |
ftunivlausanne |
language |
English |
topic |
glacier fluctuations glacier hydrology glacier modelling mountain glaciers remote sensing terrestrial laser scanning |
spellingShingle |
glacier fluctuations glacier hydrology glacier modelling mountain glaciers remote sensing terrestrial laser scanning Gabbud, C. Micheletti, N. Lane, S.N. Lidar measurement of surface melt for a temperate Alpine glacier at the seasonal and hourly scales |
topic_facet |
glacier fluctuations glacier hydrology glacier modelling mountain glaciers remote sensing terrestrial laser scanning |
description |
This study shows how a new generation of terrestrial laser scanners can be used to investigate glacier surface ablation and other elements of glacial hydrodynamics at exceptionally high spatial and temporal resolution. The study area is an Alpine valley glacier, Haut Glacier d'Arolla, Switzerland. Here we use an ultra-long-range lidar RIEGL VZ-6000 scanner, having a laser specifically designed for measurement of snow- and ice-cover surfaces. We focus on two timescales: seasonal and daily. Our results show that a near-infrared scanning laser system can provide high-precision elevation change and ablation data from long ranges, and over relatively large sections of the glacier surface. We use it to quantify spatial variations in the patterns of surface melt at the seasonal scale, as controlled by both aspect and differential debris cover. At the daily scale, we quantify the effects of ogive-related differences in ice surface debris content on spatial patterns of ablation. Daily scale measurements point to possible hydraulic jacking of the glacier associated with short-term water pressure rises. This latter demonstration shows that this type of lidar may be used to address subglacial hydrologic questions, in addition to motion and ablation measurements. |
format |
Article in Journal/Newspaper |
author |
Gabbud, C. Micheletti, N. Lane, S.N. |
author_facet |
Gabbud, C. Micheletti, N. Lane, S.N. |
author_sort |
Gabbud, C. |
title |
Lidar measurement of surface melt for a temperate Alpine glacier at the seasonal and hourly scales |
title_short |
Lidar measurement of surface melt for a temperate Alpine glacier at the seasonal and hourly scales |
title_full |
Lidar measurement of surface melt for a temperate Alpine glacier at the seasonal and hourly scales |
title_fullStr |
Lidar measurement of surface melt for a temperate Alpine glacier at the seasonal and hourly scales |
title_full_unstemmed |
Lidar measurement of surface melt for a temperate Alpine glacier at the seasonal and hourly scales |
title_sort |
lidar measurement of surface melt for a temperate alpine glacier at the seasonal and hourly scales |
publishDate |
2015 |
url |
https://serval.unil.ch/notice/serval:BIB_DAC3B2DD7905 https://doi.org/10.3189/2015JoG14J226 |
genre |
Journal of Glaciology |
genre_facet |
Journal of Glaciology |
op_source |
Journal of Glaciology, vol. 61, no. 229, pp. 963-974 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3189/2015JoG14J226 https://serval.unil.ch/notice/serval:BIB_DAC3B2DD7905 doi:10.3189/2015JoG14J226 urn:issn:0022-1430 |
op_doi |
https://doi.org/10.3189/2015JoG14J226 |
container_title |
Journal of Glaciology |
container_volume |
61 |
container_issue |
229 |
container_start_page |
963 |
op_container_end_page |
974 |
_version_ |
1790602380772900864 |