Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems
Volcán Villarrica (39°25'12?S, 71°56'27?W; 2847 m a.s.l.) is an active ice-capped volcano located in the Chilean lake district. The surface energy balance and glacier frontal variations have been monitored for several years, using automatic weather stations and satellite imagery. In recent...
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ftunivdundeepure:oai:discovery.dundee.ac.uk:publications/0111f80a-737a-4de2-8b7f-e715f10810a3 2024-06-23T07:53:42+00:00 Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems Rivera, Andres Corripio, Javier G. Brock, Ben Clavero, Jorge Wendt, Jens 2008-12 https://discovery.dundee.ac.uk/en/publications/0111f80a-737a-4de2-8b7f-e715f10810a3 https://doi.org/10.3189/002214308787780076 eng eng https://discovery.dundee.ac.uk/en/publications/0111f80a-737a-4de2-8b7f-e715f10810a3 info:eu-repo/semantics/restrictedAccess Rivera , A , Corripio , J G , Brock , B , Clavero , J & Wendt , J 2008 , ' Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems ' , Journal of Glaciology , vol. 54 , no. 188 , pp. 920-930 . https://doi.org/10.3189/002214308787780076 GPS Ice cap Photography Remote sensing Satellite imagery Volcanic activity Chile Volcán Villarrica article 2008 ftunivdundeepure https://doi.org/10.3189/002214308787780076 2024-06-04T14:53:26Z Volcán Villarrica (39°25'12?S, 71°56'27?W; 2847 m a.s.l.) is an active ice-capped volcano located in the Chilean lake district. The surface energy balance and glacier frontal variations have been monitored for several years, using automatic weather stations and satellite imagery. In recent field campaigns, surface topography was measured using Javad GPS receivers. Daily changes in snow-, ice- and tephra-covered areas were recorded using an automatic digital camera installed on a rock outcrop. In spite of frequently damaging weather conditions, two series of consecutive images were obtained, in 2006 and 2007. These photographs were georeferenced to a resampled 90 m pixel size SRTM digital elevation model and the reflectance values normalized according to several geometric and atmospheric parameters. The resulting daily maps of surface albedo are used as input to a distributed glacier-melt model during a 12 day mid-summer period. The spatial pattern of cumulative melt is complex and controlled by the distribution of airfall and wind-blown tephra, with extremely high melt rates occurring downwind of the crater and exposed ash banks. The camera images are also used to visualize the pattern of glacier crevassing. The results demonstrate the value of terrestrial photography in understanding the energy and mass balance of the glacier, including the generation of meltwater, and the potential value of the technique for monitoring volcanic activity and potential hazards associated with ice-volcano interactions during eruptive activity. Article in Journal/Newspaper Ice cap Journal of Glaciology Discovery - University of Dundee Online Publications Journal of Glaciology 54 188 920 930 |
institution |
Open Polar |
collection |
Discovery - University of Dundee Online Publications |
op_collection_id |
ftunivdundeepure |
language |
English |
topic |
GPS Ice cap Photography Remote sensing Satellite imagery Volcanic activity Chile Volcán Villarrica |
spellingShingle |
GPS Ice cap Photography Remote sensing Satellite imagery Volcanic activity Chile Volcán Villarrica Rivera, Andres Corripio, Javier G. Brock, Ben Clavero, Jorge Wendt, Jens Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems |
topic_facet |
GPS Ice cap Photography Remote sensing Satellite imagery Volcanic activity Chile Volcán Villarrica |
description |
Volcán Villarrica (39°25'12?S, 71°56'27?W; 2847 m a.s.l.) is an active ice-capped volcano located in the Chilean lake district. The surface energy balance and glacier frontal variations have been monitored for several years, using automatic weather stations and satellite imagery. In recent field campaigns, surface topography was measured using Javad GPS receivers. Daily changes in snow-, ice- and tephra-covered areas were recorded using an automatic digital camera installed on a rock outcrop. In spite of frequently damaging weather conditions, two series of consecutive images were obtained, in 2006 and 2007. These photographs were georeferenced to a resampled 90 m pixel size SRTM digital elevation model and the reflectance values normalized according to several geometric and atmospheric parameters. The resulting daily maps of surface albedo are used as input to a distributed glacier-melt model during a 12 day mid-summer period. The spatial pattern of cumulative melt is complex and controlled by the distribution of airfall and wind-blown tephra, with extremely high melt rates occurring downwind of the crater and exposed ash banks. The camera images are also used to visualize the pattern of glacier crevassing. The results demonstrate the value of terrestrial photography in understanding the energy and mass balance of the glacier, including the generation of meltwater, and the potential value of the technique for monitoring volcanic activity and potential hazards associated with ice-volcano interactions during eruptive activity. |
format |
Article in Journal/Newspaper |
author |
Rivera, Andres Corripio, Javier G. Brock, Ben Clavero, Jorge Wendt, Jens |
author_facet |
Rivera, Andres Corripio, Javier G. Brock, Ben Clavero, Jorge Wendt, Jens |
author_sort |
Rivera, Andres |
title |
Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems |
title_short |
Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems |
title_full |
Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems |
title_fullStr |
Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems |
title_full_unstemmed |
Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems |
title_sort |
monitoring ice-capped active volćan villarrica, southern chile, using terrestrial photography combined with automatic weather stations and global positioning systems |
publishDate |
2008 |
url |
https://discovery.dundee.ac.uk/en/publications/0111f80a-737a-4de2-8b7f-e715f10810a3 https://doi.org/10.3189/002214308787780076 |
genre |
Ice cap Journal of Glaciology |
genre_facet |
Ice cap Journal of Glaciology |
op_source |
Rivera , A , Corripio , J G , Brock , B , Clavero , J & Wendt , J 2008 , ' Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems ' , Journal of Glaciology , vol. 54 , no. 188 , pp. 920-930 . https://doi.org/10.3189/002214308787780076 |
op_relation |
https://discovery.dundee.ac.uk/en/publications/0111f80a-737a-4de2-8b7f-e715f10810a3 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.3189/002214308787780076 |
container_title |
Journal of Glaciology |
container_volume |
54 |
container_issue |
188 |
container_start_page |
920 |
op_container_end_page |
930 |
_version_ |
1802645467261042688 |