Tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of Tystigbreen in Norway
The number of glacial lakes has grown globally concurrently with the retreat of glaciers in the last few decades, increasing the risk of potentially hazardous glacial lake outburst floods (GLOFs) and posing a threat to downstream communities. Norway has several known ice-dammed lakes that produce re...
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ftdoajarticles:oai:doaj.org/article:cbd6f3f682824fc58acf5f95e8297b9e 2024-09-15T18:07:52+00:00 Tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of Tystigbreen in Norway Jogscha Miriam Abderhalden Kristine Katherine Bly Ronja Lappe Liss Marie Andreassen Irina Rogozhina https://doi.org/10.1017/jog.2024.13 https://doaj.org/article/cbd6f3f682824fc58acf5f95e8297b9e EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143024000133/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2024.13 0022-1430 1727-5652 https://doaj.org/article/cbd6f3f682824fc58acf5f95e8297b9e Journal of Glaciology, Pp 1-16 glacier hydrology glacier monitoring Jökulhlaups (GLOFs) mountain glaciers remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article ftdoajarticles https://doi.org/10.1017/jog.2024.13 2024-08-05T17:49:26Z The number of glacial lakes has grown globally concurrently with the retreat of glaciers in the last few decades, increasing the risk of potentially hazardous glacial lake outburst floods (GLOFs) and posing a threat to downstream communities. Norway has several known ice-dammed lakes that produce repeated GLOFs but as we show here, the existing GLOF database is incomplete and needs to be improved through continuous monitoring of glaciers and glacial lakes. This study examines the case of an ice cap in central Norway hosting at least four drainage-prone lakes. We reconstruct the sequence of lake drainage events through a combination of remote sensing, ground-truthing and citizen science while scrutinising the applicability of the PlanetScope imagery vs Sentinel-2 and Landsat-8 OLI products. As opposed to the Landsat imagery that often fails to resolve even the largest glacial lakes of Tystigbreen, both PlanetScope and Sentinel-2 are helpful in identifying previously unrecognised glacial lakes and undocumented drainage events. Our analysis suggests that a fusion of the two satellite products may be beneficial for automated tracking of glacial lake changes. We also demonstrate that local knowledge and systematic involvement of citizens in data collection have a potential to enrich GLOF databases. Article in Journal/Newspaper glacier Ice cap Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Journal of Glaciology 1 16 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
glacier hydrology glacier monitoring Jökulhlaups (GLOFs) mountain glaciers remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
glacier hydrology glacier monitoring Jökulhlaups (GLOFs) mountain glaciers remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Jogscha Miriam Abderhalden Kristine Katherine Bly Ronja Lappe Liss Marie Andreassen Irina Rogozhina Tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of Tystigbreen in Norway |
topic_facet |
glacier hydrology glacier monitoring Jökulhlaups (GLOFs) mountain glaciers remote sensing Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
The number of glacial lakes has grown globally concurrently with the retreat of glaciers in the last few decades, increasing the risk of potentially hazardous glacial lake outburst floods (GLOFs) and posing a threat to downstream communities. Norway has several known ice-dammed lakes that produce repeated GLOFs but as we show here, the existing GLOF database is incomplete and needs to be improved through continuous monitoring of glaciers and glacial lakes. This study examines the case of an ice cap in central Norway hosting at least four drainage-prone lakes. We reconstruct the sequence of lake drainage events through a combination of remote sensing, ground-truthing and citizen science while scrutinising the applicability of the PlanetScope imagery vs Sentinel-2 and Landsat-8 OLI products. As opposed to the Landsat imagery that often fails to resolve even the largest glacial lakes of Tystigbreen, both PlanetScope and Sentinel-2 are helpful in identifying previously unrecognised glacial lakes and undocumented drainage events. Our analysis suggests that a fusion of the two satellite products may be beneficial for automated tracking of glacial lake changes. We also demonstrate that local knowledge and systematic involvement of citizens in data collection have a potential to enrich GLOF databases. |
format |
Article in Journal/Newspaper |
author |
Jogscha Miriam Abderhalden Kristine Katherine Bly Ronja Lappe Liss Marie Andreassen Irina Rogozhina |
author_facet |
Jogscha Miriam Abderhalden Kristine Katherine Bly Ronja Lappe Liss Marie Andreassen Irina Rogozhina |
author_sort |
Jogscha Miriam Abderhalden |
title |
Tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of Tystigbreen in Norway |
title_short |
Tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of Tystigbreen in Norway |
title_full |
Tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of Tystigbreen in Norway |
title_fullStr |
Tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of Tystigbreen in Norway |
title_full_unstemmed |
Tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of Tystigbreen in Norway |
title_sort |
tracking rapid and slow ice-dammed lake changes through optical satellites and local knowledge: a case study of tystigbreen in norway |
publisher |
Cambridge University Press |
url |
https://doi.org/10.1017/jog.2024.13 https://doaj.org/article/cbd6f3f682824fc58acf5f95e8297b9e |
genre |
glacier Ice cap Journal of Glaciology |
genre_facet |
glacier Ice cap Journal of Glaciology |
op_source |
Journal of Glaciology, Pp 1-16 |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143024000133/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2024.13 0022-1430 1727-5652 https://doaj.org/article/cbd6f3f682824fc58acf5f95e8297b9e |
op_doi |
https://doi.org/10.1017/jog.2024.13 |
container_title |
Journal of Glaciology |
container_start_page |
1 |
op_container_end_page |
16 |
_version_ |
1810445227389878272 |