#IMC: September 14 - 18 2025

Snow cover, glacier size and melt; runoff variability from a medium size alpine glacier

Assigned Session: #AGM28: Generic Meeting Session

Abstract ID: 28.7676 | Accepted as Talk | Talk | 2025-02-28 10:00 - 10:15 | Ágnes‐Heller‐Haus/Small Lecture Room

Christoph Mayer (0)
Lambrecht, Astrid (1), Hofmeister, Florentin (1), Wendt, Anja (1), Siebers, Matthias (1)
Christoph Mayer (1)
Lambrecht, Astrid (1), Hofmeister, Florentin (1), Wendt, Anja (1), Siebers, Matthias (1)

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(1) Bavarian Academy of Sciences and Humanities, Alfons-Goppel Str. 11, 80539, Munich, DE

(1) Bavarian Academy of Sciences and Humanities, Alfons-Goppel Str. 11, 80539, Munich, DE

Categories: Climate Change, Glacial Hydrology
Keywords: glacier runoff, mass balance

Categories: Climate Change, Glacial Hydrology
Keywords: glacier runoff, mass balance

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Vernagtferner in the Ötztal Alps is a medium-sized alpine glacier with existing long-term observations of glaciological, meteorological and hydrological variables. The runoff characteristics and magnitudes have changed considerably since the first observations in the 1970s, not only because of the development towards more negative glacier mass balances, but also due to changes in the snow cover characteristics, as well as the glacier coverage in the basin. Extreme years concerning negative mass balance, like 2003 and 2022 seem to change the melt conditions fundamentally, also for the subsequent years. Here we present an analysis of the hydro-meteorological time series in comparison to fundamental glaciological variables, which help us to understand the characteristics of melt water production and runoff generation of this high-alpine catchment.

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Ágnes‐Heller‐Haus
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