Karl Heinrich Adolf Reiss, Brustbild

Signatur des Originals: S 36/G01997

Karl Heinrich Adolf Reiss, Brustbild

Signatur des Originals: S 36/G01998

Adolf Friedrich von Schack, Brustbild

Signatur des Originals: S 36/G02144

Adolf von Henselt, Brustbild

Signatur des Originals: S 36/G03150

Adolf von Henselt, Brustbild

Signatur des Originals: S 36/G03151

Adolf von Henselt, Brustbild

Signatur des Originals: S 36/G03152

Adolf Friedrich Hesse, Brustbild

Signatur des Originals: S 36/G03169

Adolf Methfessel, Brustbild

Signatur des Originals: S 36/G03383

Adolf Friedrich Hesse, Hüftbild

Signatur des Originals: S 36/G04121

Radio-echo sounding and ice volume estimates of western Nordenskiöld Land glaciers, Svalbard

As part of ongoing work to obtain a reliable estimate of the total ice volume of Svalbard glaciers and their potential contribution to sea-level rise, we present here 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. On the basis of the pattern of scattering in theradargrams, we also analyse the hydrothermal structure of these glaciers.

Ice volume estimates from ground-penetrating radar surveys, western Nordenskiöld Land glaciers, Svalbard

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.

La luz que construye el tiempo y el espacio. Sobre la arquitectura de Adolf Appia.

La luz que construye el tiempo y el espacio. Sobre la arquitectura de Adolf Appia.