Memorias de investigación
Ponencias en congresos:
Ice volume estimates from ground-penetrating radar surveys, western Nordenskiöld Land glaciers, Svalbard
Año:2013
Áreas de investigación
  • Ciencias de la tierra
Datos
Descripción
As part of ongoing work within the SvalGlac project aimed to obtain a reliable estimate of the total ice volume of Svalbard glaciers and their potential contribution to sea level rise, in this contribution we present volume calculations, with detailed error estimates, for ten glaciers on western Nordenskiöld Land, central Spitsbergen, Svalbard. The volume estimates are based upon a dense net of GPR-retrieved ice thickness data collected over several field campaigns spanning the period 1999-2012, all of them except one within 2010-2012. The total area and volume of the ensemble are 113.38±0.09 km2 and 10.439±0.185 km3, respectively, while the individual areas, volumes and average ice thickness lie within 2.5-49.1 km2, 0.08-5.48 km3 and 29-108 m, respectively. The maximum recorded ice thickness, 265±15 m, corresponds to Fridtjovbreen, which has also the largest average thickness (108±1m). Available empirical formulae for Svalbard glaciers overestimate the total volume of these glaciers by 24% with respect to our calculation. On the basis of the pattern of scattering in the radargrams, we also analyse the hydrothermal structure of these glaciers. Nine out of ten are polythermal, while only one is entirely cold.
Internacional
Si
Nombre congreso
International Arctic Science Committee - Network on Arctic Glaciology, 2013 Annual Meeting
Tipo de participación
960
Lugar del congreso
Obergurgl, Austria
Revisores
Si
ISBN o ISSN
978-90-393-6003-3
DOI
Fecha inicio congreso
26/02/2013
Fecha fin congreso
28/02/2013
Desde la página
46
Hasta la página
46
Título de las actas
IASC Workshop on the dynamics and mass budget of Arctic glaciers - Abstracts and program. IASC Network on Arctic Glaciology
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Simulación Numérica en Ciencias e Ingeniería
  • Departamento: Matemática Aplicada a las Tecnologías de la Información