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Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems

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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.

In: Journal of Glaciology, Vol. 54, No. 188, 12.2008, p. 920-930.

Research output: Contribution to journalArticle

Harvard

Rivera, A, Corripio, JG, 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., 10.3189/002214308787780076

APA

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, 54(188), 920-930. 10.3189/002214308787780076

Vancouver

Rivera A, Corripio JG, Brock B, Clavero J, Wendt J. Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems. Journal of Glaciology. 2008 Dec;54(188):920-930. Available from: 10.3189/002214308787780076

Author

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.

In: Journal of Glaciology, Vol. 54, No. 188, 12.2008, p. 920-930.

Research output: Contribution to journalArticle

Bibtex - Download

@article{0111f80a737a4de28b7fe715f10810a3,
title = "Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems",
keywords = "GPS, Ice cap, Photography, Remote sensing, Satellite imagery, Volcanic activity, Chile, Volcán Villarrica",
author = "Andres Rivera and Corripio, {Javier G.} and Ben Brock and Jorge Clavero and Jens Wendt",
note = "dc.publisher: International Glaciological Society",
year = "2008",
doi = "10.3189/002214308787780076",
volume = "54",
number = "188",
pages = "920--930",
journal = "Journal of Glaciology",
issn = "0022-1430",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems

A1 - Rivera,Andres

A1 - Corripio,Javier G.

A1 - Brock,Ben

A1 - Clavero,Jorge

A1 - Wendt,Jens

AU - Rivera,Andres

AU - Corripio,Javier G.

AU - Brock,Ben

AU - Clavero,Jorge

AU - Wendt,Jens

PY - 2008/12

Y1 - 2008/12

N2 - 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.

AB - 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.

KW - GPS

KW - Ice cap

KW - Photography

KW - Remote sensing

KW - Satellite imagery

KW - Volcanic activity

KW - Chile

KW - Volcán Villarrica

U2 - 10.3189/002214308787780076

DO - 10.3189/002214308787780076

M1 - Article

JO - Journal of Glaciology

JF - Journal of Glaciology

SN - 0022-1430

IS - 188

VL - 54

SP - 920

EP - 930

ER -

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