First ground penetrating radar survey on Monte Perdido glacier (Pyrenees)

  1. Luís Mariano del Río 1
  2. Juan Ignacio López-Moreno 2
  3. Ibai Rico 3
  4. Enrique Serrano-Cañadas 4
  5. Andrés Heras 1
  6. Juan José Tejado 5
  1. 1 Universidad de Extremadura
    info

    Universidad de Extremadura

    Badajoz, España

    ROR https://ror.org/0174shg90

  2. 2 Instituto Pirenaico de Ecología (CSIC), Zaragoza
  3. 3 Universidad del País Vasco/Euskal Herriko Unibertsitatea
    info

    Universidad del País Vasco/Euskal Herriko Unibertsitatea

    Lejona, España

    ROR https://ror.org/000xsnr85

  4. 4 Universidad de Valladolid
    info

    Universidad de Valladolid

    Valladolid, España

    ROR https://ror.org/01fvbaw18

  5. 5 Instituto Tecnológico de Rocas Ornamentales y Materiales de Construcción
    info

    Instituto Tecnológico de Rocas Ornamentales y Materiales de Construcción

    Cáceres, España

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Journal:
Topografía y cartografía: Revista del Ilustre Colegio Oficial de Ingenieros Técnicos en Topografía

ISSN: 0212-9280

Year of publication: 2016

Issue Title: XI Congreso Internacional de Geomática y Ciencias de la Tierra. Criosfera y Cambio Climático

Volume: 32

Issue: 170

Pages: 45-50

Type: Article

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Abstract

The project “The Monte Perdido Glacier: Monitoring the glacial dynamic and the associated cryospheric processes as indicators of global change” (National Park´s 2013 Fund) aims to study the recent dynamic and degradation of this ice mass, using geomatic and geophysical techniques in order to estimate thickness and potential volumetric variations. We present the first ground penetrating radar survey, carried out on the northwest section of the lower Monte Perdido Glacier. The survey was conducted along a 270 m transect, using three antennas of different frequencies -500, 200 and 50 MHz- that enabled us to study the glacier´s structure at various maximum depths and spatial resolutions. The results show a first section composed by several seasonal snow layers (2015-2016 winter and spring), a clear snow/ice transition layer, an ice layer and a final basal zone characterised by typical sub-glacial till sediments. We infer a maximum ice-depth of 25.2±1.6 m, constituting the first and unprecedented estimation of thickness on the Monte Perdido Glacier.

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