Monitoring the annual geodetic mass balance of Bordu and Sary-Tor glaciers using UAV data
The geodetic mass balance of a glacier corresponds to glacier-wide volume changes, converted to mass changes using density assumptions. It is typically calculated by differencing multi-temporal digital elevation models. In this study, we show how the annual geodetic mass balance of a glacier can be...
Published in: | Annals of Glaciology |
---|---|
Main Authors: | , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press
|
Subjects: | |
Online Access: | https://doi.org/10.1017/aog.2023.71 https://doaj.org/article/0f1fbd7fd15e43b2aad496338f2d8f5d |
id |
ftdoajarticles:oai:doaj.org/article:0f1fbd7fd15e43b2aad496338f2d8f5d |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:0f1fbd7fd15e43b2aad496338f2d8f5d 2023-12-03T10:09:47+01:00 Monitoring the annual geodetic mass balance of Bordu and Sary-Tor glaciers using UAV data Lander Van Tricht Chloë Marie Paice Oleg Rybak Victor Popovnin Rysbek Satylkanov Philippe Huybrechts https://doi.org/10.1017/aog.2023.71 https://doaj.org/article/0f1fbd7fd15e43b2aad496338f2d8f5d EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S026030552300071X/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2023.71 0260-3055 1727-5644 https://doaj.org/article/0f1fbd7fd15e43b2aad496338f2d8f5d Annals of Glaciology, Pp 1-10 glacier mapping glacier mass balance glacier monitoring glaciological instruments and methods mass-balance reconstruction Meteorology. Climatology QC851-999 article ftdoajarticles https://doi.org/10.1017/aog.2023.71 2023-11-05T01:37:16Z The geodetic mass balance of a glacier corresponds to glacier-wide volume changes, converted to mass changes using density assumptions. It is typically calculated by differencing multi-temporal digital elevation models. In this study, we show how the annual geodetic mass balance of a glacier can be derived from uncrewed aerial vehicle (UAV) data. The presented workflow is applied to two small- to medium-sized glaciers in the Kyrgyz Tien Shan (Central Asia): Bordu glacier and Sary-Tor glacier. The obtained geodetic mass balance is compared with the glaciological mass balance derived from a network of ablation stakes and snow pits. A previously calibrated mass-balance model is used to correct for the difference in acquisition dates. The results show that the determined geodetic mass balance matches closely with the glaciological mass balance. Besides, for both glaciers the geodetic mass balance does not seem to be particularly sensitive to the assumptions regarding volume-to-mass conversion. Therefore, our results demonstrate that UAVs can serve as a valuable instrument to quantify the annual geodetic mass balance and to validate the glaciological mass balance. The conventional glaciological mass-balance estimation often relies on interpolation and extrapolation methods, whereas UAVs offer the potential for direct data acquisition over the entire glacier surface. Article in Journal/Newspaper Annals of Glaciology Directory of Open Access Journals: DOAJ Articles Annals of Glaciology 1 10 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
glacier mapping glacier mass balance glacier monitoring glaciological instruments and methods mass-balance reconstruction Meteorology. Climatology QC851-999 |
spellingShingle |
glacier mapping glacier mass balance glacier monitoring glaciological instruments and methods mass-balance reconstruction Meteorology. Climatology QC851-999 Lander Van Tricht Chloë Marie Paice Oleg Rybak Victor Popovnin Rysbek Satylkanov Philippe Huybrechts Monitoring the annual geodetic mass balance of Bordu and Sary-Tor glaciers using UAV data |
topic_facet |
glacier mapping glacier mass balance glacier monitoring glaciological instruments and methods mass-balance reconstruction Meteorology. Climatology QC851-999 |
description |
The geodetic mass balance of a glacier corresponds to glacier-wide volume changes, converted to mass changes using density assumptions. It is typically calculated by differencing multi-temporal digital elevation models. In this study, we show how the annual geodetic mass balance of a glacier can be derived from uncrewed aerial vehicle (UAV) data. The presented workflow is applied to two small- to medium-sized glaciers in the Kyrgyz Tien Shan (Central Asia): Bordu glacier and Sary-Tor glacier. The obtained geodetic mass balance is compared with the glaciological mass balance derived from a network of ablation stakes and snow pits. A previously calibrated mass-balance model is used to correct for the difference in acquisition dates. The results show that the determined geodetic mass balance matches closely with the glaciological mass balance. Besides, for both glaciers the geodetic mass balance does not seem to be particularly sensitive to the assumptions regarding volume-to-mass conversion. Therefore, our results demonstrate that UAVs can serve as a valuable instrument to quantify the annual geodetic mass balance and to validate the glaciological mass balance. The conventional glaciological mass-balance estimation often relies on interpolation and extrapolation methods, whereas UAVs offer the potential for direct data acquisition over the entire glacier surface. |
format |
Article in Journal/Newspaper |
author |
Lander Van Tricht Chloë Marie Paice Oleg Rybak Victor Popovnin Rysbek Satylkanov Philippe Huybrechts |
author_facet |
Lander Van Tricht Chloë Marie Paice Oleg Rybak Victor Popovnin Rysbek Satylkanov Philippe Huybrechts |
author_sort |
Lander Van Tricht |
title |
Monitoring the annual geodetic mass balance of Bordu and Sary-Tor glaciers using UAV data |
title_short |
Monitoring the annual geodetic mass balance of Bordu and Sary-Tor glaciers using UAV data |
title_full |
Monitoring the annual geodetic mass balance of Bordu and Sary-Tor glaciers using UAV data |
title_fullStr |
Monitoring the annual geodetic mass balance of Bordu and Sary-Tor glaciers using UAV data |
title_full_unstemmed |
Monitoring the annual geodetic mass balance of Bordu and Sary-Tor glaciers using UAV data |
title_sort |
monitoring the annual geodetic mass balance of bordu and sary-tor glaciers using uav data |
publisher |
Cambridge University Press |
url |
https://doi.org/10.1017/aog.2023.71 https://doaj.org/article/0f1fbd7fd15e43b2aad496338f2d8f5d |
genre |
Annals of Glaciology |
genre_facet |
Annals of Glaciology |
op_source |
Annals of Glaciology, Pp 1-10 |
op_relation |
https://www.cambridge.org/core/product/identifier/S026030552300071X/type/journal_article https://doaj.org/toc/0260-3055 https://doaj.org/toc/1727-5644 doi:10.1017/aog.2023.71 0260-3055 1727-5644 https://doaj.org/article/0f1fbd7fd15e43b2aad496338f2d8f5d |
op_doi |
https://doi.org/10.1017/aog.2023.71 |
container_title |
Annals of Glaciology |
container_start_page |
1 |
op_container_end_page |
10 |
_version_ |
1784267812630429696 |