On the errors in the estimate of ice volumes from GPR data

• Javier Lapazaran ^[1] ; Jaime Otero ^[1] ; Francisco Navarro ^[1] ; Alba Martín-Español ^[2]
  1. [1] Universidad Politécnica de Madrid

     Universidad Politécnica de Madrid

     Madrid, España

     
  2. [2] University of Bristol

     University of Bristol

     Reino Unido

     
• Localización: Topografía y cartografía: Revista del Ilustre Colegio Oficial de Ingenieros Técnicos en Topografía, ISSN 0212-9280, Vol. 32, Nº 170, 2016 (Ejemplar dedicado a: XI Congreso Internacional de Geomática y Ciencias de la Tierra. Criosfera y Cambio Climático), págs. 91-92
• Idioma: inglés
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• Resumen

  • One of the most extended glaciological applications of the ground penetrating radar (GPR) is the ice-thickness assessment.

    Since the GPR-data distribution on the glacier is often irregular, it is usually necessary to build a digital elevation model (DEM) of the ice thickness. This type of DEM is often used to assess the glacier volume. To estimate the error of this volume calculation we need to know the error of the thickness values at the grid points of the DEM.

    Our error study divides the process of error calculation in three steps: the errors of the icethickness data; the errors at the DEM of ice thickness; and the errors in ice volume.