| Autor: |
Reinwarth, Oskar, Escher-Vetter, Heidi |
| Předmět: |
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| Zdroj: |
Geografiska Annaler Series A: Physical Geography; Dec99, Vol. 81 Issue 4, p743, 9p, 4 Graphs, 3 Maps |
| Abstrakt: |
The cumulative mass balance of the Vernagtferner for the period 1968/69, when separate mass balance computations for the three sections were started, until 1996/97 amounted to -8.7 m water equivalent (w.e.). The mass loss of the western Schwarzwand section as the part with the largest share of low elevation area was -13.3 m w.e., in contrast to the central Taschachjoch section which lost only -6.6 m w.e. The remaining eastern Brochkogel section with a loss of -8.5 m w.e. fits best the mass balance of the total Vernagtferner although its physiographic characteristics differ markedly from those of the entire glacier. The equilibrium line altitude (ELA) dependence on specific net mass balance (b) is slightly different for the three sections, whereas the dependence of the accumulation area-total area ratio (AAR) on b is characterized by nearly identical sensitivities. Moreover, AAR correlates better with b than ELA, therefore AAR is regarded as a more representative parameter for the Vernagtferner than ELA. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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