Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia
On the Kamchatka Peninsula, a number of glaciers are covered by thick volcanic debris, which makes their margins difficult to delineate from satellite imagery. Fortunately, high resolution, multi-temporal digital surface models (DSMs) covering the entire peninsula have recently become freely availab...
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ftdoajarticles:oai:doaj.org/article:81f5988655e44ffbb25fdead7305ae03 2023-05-15T16:22:03+02:00 Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia Iestyn D. Barr Mikhail D. Dokukin Ioannis Kougkoulos Stephen J. Livingstone Harold Lovell Jakub Małecki Anton Y. Muraviev 2018-06-01T00:00:00Z https://doi.org/10.3390/geosciences8060216 https://doaj.org/article/81f5988655e44ffbb25fdead7305ae03 EN eng MDPI AG http://www.mdpi.com/2076-3263/8/6/216 https://doaj.org/toc/2076-3263 2076-3263 doi:10.3390/geosciences8060216 https://doaj.org/article/81f5988655e44ffbb25fdead7305ae03 Geosciences, Vol 8, Iss 6, p 216 (2018) ArcticDEM glaciers debris-covered volcano volcanic activity Kluchevskoy Kamchatka Geology QE1-996.5 article 2018 ftdoajarticles https://doi.org/10.3390/geosciences8060216 2022-12-31T15:52:54Z On the Kamchatka Peninsula, a number of glaciers are covered by thick volcanic debris, which makes their margins difficult to delineate from satellite imagery. Fortunately, high resolution, multi-temporal digital surface models (DSMs) covering the entire peninsula have recently become freely available (i.e., ArcticDEM). We use these DSMs to analyse the dimensions and dynamics of debris-covered glaciers in the northern Kluchevskoy Volcanic Group, central Kamchatka. This approach demonstrates that between 2012 and 2016, some of the region’s glaciers advanced despite regional and local climate warming. These glacial advances are part of a long-term trend, presumed to reflect the role of extensive supraglacial debris in limiting ice ablation, though there is also evidence for local ice melt due to supraglacial lava/debris flows. Glacier surface velocities during the period 2012–2015 were typically 5–140 m yr−1. Velocities for the major outlets of the region’s central icefield were typically higher than for other extensively debris-covered glaciers globally, likely reflecting the influence of ice supply from the high altitude Ushkovsky caldera. In all, we find ArcticDEM useful for analysing debris-covered glaciers in Kamchatka, providing important information on flow dynamics and terminus change that is difficult to derive from satellite imagery. Article in Journal/Newspaper glacier Kamchatka Kamchatka Peninsula Directory of Open Access Journals: DOAJ Articles Kamchatka Peninsula ENVELOPE(160.000,160.000,56.000,56.000) Geosciences 8 6 216 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
ArcticDEM glaciers debris-covered volcano volcanic activity Kluchevskoy Kamchatka Geology QE1-996.5 |
spellingShingle |
ArcticDEM glaciers debris-covered volcano volcanic activity Kluchevskoy Kamchatka Geology QE1-996.5 Iestyn D. Barr Mikhail D. Dokukin Ioannis Kougkoulos Stephen J. Livingstone Harold Lovell Jakub Małecki Anton Y. Muraviev Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia |
topic_facet |
ArcticDEM glaciers debris-covered volcano volcanic activity Kluchevskoy Kamchatka Geology QE1-996.5 |
description |
On the Kamchatka Peninsula, a number of glaciers are covered by thick volcanic debris, which makes their margins difficult to delineate from satellite imagery. Fortunately, high resolution, multi-temporal digital surface models (DSMs) covering the entire peninsula have recently become freely available (i.e., ArcticDEM). We use these DSMs to analyse the dimensions and dynamics of debris-covered glaciers in the northern Kluchevskoy Volcanic Group, central Kamchatka. This approach demonstrates that between 2012 and 2016, some of the region’s glaciers advanced despite regional and local climate warming. These glacial advances are part of a long-term trend, presumed to reflect the role of extensive supraglacial debris in limiting ice ablation, though there is also evidence for local ice melt due to supraglacial lava/debris flows. Glacier surface velocities during the period 2012–2015 were typically 5–140 m yr−1. Velocities for the major outlets of the region’s central icefield were typically higher than for other extensively debris-covered glaciers globally, likely reflecting the influence of ice supply from the high altitude Ushkovsky caldera. In all, we find ArcticDEM useful for analysing debris-covered glaciers in Kamchatka, providing important information on flow dynamics and terminus change that is difficult to derive from satellite imagery. |
format |
Article in Journal/Newspaper |
author |
Iestyn D. Barr Mikhail D. Dokukin Ioannis Kougkoulos Stephen J. Livingstone Harold Lovell Jakub Małecki Anton Y. Muraviev |
author_facet |
Iestyn D. Barr Mikhail D. Dokukin Ioannis Kougkoulos Stephen J. Livingstone Harold Lovell Jakub Małecki Anton Y. Muraviev |
author_sort |
Iestyn D. Barr |
title |
Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia |
title_short |
Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia |
title_full |
Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia |
title_fullStr |
Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia |
title_full_unstemmed |
Using ArcticDEM to Analyse the Dimensions and Dynamics of Debris-Covered Glaciers in Kamchatka, Russia |
title_sort |
using arcticdem to analyse the dimensions and dynamics of debris-covered glaciers in kamchatka, russia |
publisher |
MDPI AG |
publishDate |
2018 |
url |
https://doi.org/10.3390/geosciences8060216 https://doaj.org/article/81f5988655e44ffbb25fdead7305ae03 |
long_lat |
ENVELOPE(160.000,160.000,56.000,56.000) |
geographic |
Kamchatka Peninsula |
geographic_facet |
Kamchatka Peninsula |
genre |
glacier Kamchatka Kamchatka Peninsula |
genre_facet |
glacier Kamchatka Kamchatka Peninsula |
op_source |
Geosciences, Vol 8, Iss 6, p 216 (2018) |
op_relation |
http://www.mdpi.com/2076-3263/8/6/216 https://doaj.org/toc/2076-3263 2076-3263 doi:10.3390/geosciences8060216 https://doaj.org/article/81f5988655e44ffbb25fdead7305ae03 |
op_doi |
https://doi.org/10.3390/geosciences8060216 |
container_title |
Geosciences |
container_volume |
8 |
container_issue |
6 |
container_start_page |
216 |
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1766010022029950976 |