Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria
We use high-resolution aerial photogrammetry to investigate glacier retreat in great spatial and temporal detail in the Ötztal Alps, a heavily glacierized area in Austria. Long-term in situ glaciological observations are available for this region as well as a multitemporal time series of digital aer...
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Online Access: | https://doi.org/10.5194/tc-15-3699-2021 https://tc.copernicus.org/articles/15/3699/2021/tc-15-3699-2021.pdf https://doaj.org/article/5f4ea9080cde4e17a4073f896edb3b15 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:5f4ea9080cde4e17a4073f896edb3b15 2023-05-15T18:32:16+02:00 Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria J. Geissler C. Mayer J. Jubanski U. Münzer F. Siegert 2021-08-01 https://doi.org/10.5194/tc-15-3699-2021 https://tc.copernicus.org/articles/15/3699/2021/tc-15-3699-2021.pdf https://doaj.org/article/5f4ea9080cde4e17a4073f896edb3b15 en eng Copernicus Publications doi:10.5194/tc-15-3699-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/3699/2021/tc-15-3699-2021.pdf https://doaj.org/article/5f4ea9080cde4e17a4073f896edb3b15 undefined The Cryosphere, Vol 15, Pp 3699-3717 (2021) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.5194/tc-15-3699-2021 2023-01-22T18:19:13Z We use high-resolution aerial photogrammetry to investigate glacier retreat in great spatial and temporal detail in the Ötztal Alps, a heavily glacierized area in Austria. Long-term in situ glaciological observations are available for this region as well as a multitemporal time series of digital aerial images with a spatial resolution of 0.2 m acquired over a period of 9 years. Digital surface models (DSMs) are generated for the years 2009, 2015, and 2018. Using these, glacier retreat, extent, and surface elevation changes of all 23 glaciers in the region, including the Vernagtferner, are analyzed. Due to different acquisition dates of the large-scale photogrammetric surveys and the glaciological data, a correction is successfully applied using a designated unmanned aerial vehicle (UAV) survey across a major part of the Vernagtferner. The correction allows a comparison of the mass balances from geodetic and glaciological techniques – both quantitatively and spatially. The results show a clear increase in glacier mass loss for all glaciers in the region, including the Vernagtferner, over the last decade. Local deviations and processes, such as the influence of debris cover, crevasses, and ice dynamics on the mass balance of the Vernagtferner, are quantified. Since those local processes are not captured with the glaciological method, they underline the benefits of complementary geodetic surveying. The availability of high-resolution multi-temporal digital aerial imagery for most of the glaciers in the Alps provides opportunities for a more comprehensive and detailed analysis of climate-change-induced glacier retreat and mass loss. Article in Journal/Newspaper The Cryosphere Unknown The Cryosphere 15 8 3699 3717 |
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English |
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geo envir |
spellingShingle |
geo envir J. Geissler C. Mayer J. Jubanski U. Münzer F. Siegert Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria |
topic_facet |
geo envir |
description |
We use high-resolution aerial photogrammetry to investigate glacier retreat in great spatial and temporal detail in the Ötztal Alps, a heavily glacierized area in Austria. Long-term in situ glaciological observations are available for this region as well as a multitemporal time series of digital aerial images with a spatial resolution of 0.2 m acquired over a period of 9 years. Digital surface models (DSMs) are generated for the years 2009, 2015, and 2018. Using these, glacier retreat, extent, and surface elevation changes of all 23 glaciers in the region, including the Vernagtferner, are analyzed. Due to different acquisition dates of the large-scale photogrammetric surveys and the glaciological data, a correction is successfully applied using a designated unmanned aerial vehicle (UAV) survey across a major part of the Vernagtferner. The correction allows a comparison of the mass balances from geodetic and glaciological techniques – both quantitatively and spatially. The results show a clear increase in glacier mass loss for all glaciers in the region, including the Vernagtferner, over the last decade. Local deviations and processes, such as the influence of debris cover, crevasses, and ice dynamics on the mass balance of the Vernagtferner, are quantified. Since those local processes are not captured with the glaciological method, they underline the benefits of complementary geodetic surveying. The availability of high-resolution multi-temporal digital aerial imagery for most of the glaciers in the Alps provides opportunities for a more comprehensive and detailed analysis of climate-change-induced glacier retreat and mass loss. |
format |
Article in Journal/Newspaper |
author |
J. Geissler C. Mayer J. Jubanski U. Münzer F. Siegert |
author_facet |
J. Geissler C. Mayer J. Jubanski U. Münzer F. Siegert |
author_sort |
J. Geissler |
title |
Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria |
title_short |
Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria |
title_full |
Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria |
title_fullStr |
Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria |
title_full_unstemmed |
Analyzing glacier retreat and mass balances using aerial and UAV photogrammetry in the Ötztal Alps, Austria |
title_sort |
analyzing glacier retreat and mass balances using aerial and uav photogrammetry in the ötztal alps, austria |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/tc-15-3699-2021 https://tc.copernicus.org/articles/15/3699/2021/tc-15-3699-2021.pdf https://doaj.org/article/5f4ea9080cde4e17a4073f896edb3b15 |
genre |
The Cryosphere |
genre_facet |
The Cryosphere |
op_source |
The Cryosphere, Vol 15, Pp 3699-3717 (2021) |
op_relation |
doi:10.5194/tc-15-3699-2021 1994-0416 1994-0424 https://tc.copernicus.org/articles/15/3699/2021/tc-15-3699-2021.pdf https://doaj.org/article/5f4ea9080cde4e17a4073f896edb3b15 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/tc-15-3699-2021 |
container_title |
The Cryosphere |
container_volume |
15 |
container_issue |
8 |
container_start_page |
3699 |
op_container_end_page |
3717 |
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