Articles | Volume 15, issue 8
The Cryosphere, 15, 3699–3717, 2021
https://doi.org/10.5194/tc-15-3699-2021
The Cryosphere, 15, 3699–3717, 2021
https://doi.org/10.5194/tc-15-3699-2021
Research article
06 Aug 2021
Research article | 06 Aug 2021

Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria

Joschka Geissler et al.

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Short summary
The study demonstrates the potential of photogrammetry for analyzing glacier retreat with high spatial resolution. Twenty-three glaciers within the Ötztal Alps are analyzed. We compare photogrammetric and glaciologic mass balances of the Vernagtferner by using the ELA for our density assumption and an UAV survey for a temporal correction of the geodetic mass balances. The results reveal regions of anomalous mass balance and allow estimates of the imbalance between mass balances and ice dynamics.