Supplementary data for: "Historical glacier change on Svalbard predicts doubling of mass loss by 2100"
Supplementary datasets for: Geyman, E.C., van Pelt, W., Maloof, A.C., Faste Aas, H., and Kohler, J., 2021. "Historical glacier change on Svalbard predicts doubling of mass loss by 2100." Nature. Abstract: The melting of glaciers and ice caps accounts for about one third of current sea leve...
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ftzenodo:oai:zenodo.org:5644415 2023-05-15T14:05:09+02:00 Supplementary data for: "Historical glacier change on Svalbard predicts doubling of mass loss by 2100" Emily Geyman Ward van Pelt Adam Maloof Harald Faste Aas Jack Kohler 2021-11-04 https://zenodo.org/record/5644415 https://doi.org/10.5281/zenodo.5644415 unknown doi:10.5281/zenodo.5644414 https://zenodo.org/record/5644415 https://doi.org/10.5281/zenodo.5644415 oai:zenodo.org:5644415 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode glaciers climate historical photogrammetry DEM Svalbard info:eu-repo/semantics/other dataset 2021 ftzenodo https://doi.org/10.5281/zenodo.564441510.5281/zenodo.5644414 2023-03-11T02:49:20Z Supplementary datasets for: Geyman, E.C., van Pelt, W., Maloof, A.C., Faste Aas, H., and Kohler, J., 2021. "Historical glacier change on Svalbard predicts doubling of mass loss by 2100." Nature. Abstract: The melting of glaciers and ice caps accounts for about one third of current sea level rise, exceeding the mass loss from the more voluminous Greenland or Antarctic Ice Sheets. The Arctic archipelago of Svalbard, which hosts spatial climate gradients that are larger than the expected temporal shifts over the next century, is a natural laboratory to constrain the climate sensitivity of glaciers and predict their response to future warming. Leveraging an archive of historical aerial images from 1936 and 1938, we use structure-from-motion (SfM) photogrammetry to reconstruct the 3D geometry of 1,594 glaciers across Svalbard. We compare these reconstructions to modern ice elevation data to derive the spatial pattern of mass balance over a >70-year timespan, allowing us to see through the noise of annual and decadal variability to quantify how variables such as temperature and precipitation control ice loss. We find a robust temperature dependence of melt rates, whereby a 1°C rise in mean summer temperature corresponds to a decrease in area-normalized mass balance of -0.28 m yr-1 of water equivalent. Finally, we design a space-for-time substitution to make first-order predictions of 21st century glacier change across Svalbard. Even in the most modest scenario (a ~1.4°C rise in mean summer temperature by 2100), we predict average glacier thinning rates in 2010-2100 of -0.67 m yr-1, approximately twice the 1936-2010 rates. Dataset description: This dataset contains the digital elevation models (DEMs), elevation change maps, point clouds, orthophotos, and vector outlines of glacier extents based on the Norwegian Polar Institute's collection of 5,507 high-oblique aerial images captured over Svalbard in 1936/1938. The photographs were analyzed through structure-from-motion (SfM) photogrammetry to generate 3D models. We ... Dataset Antarc* Antarctic Arctic Archipelago Arctic glacier glacier Greenland Svalbard Zenodo Arctic Antarctic Svalbard Greenland Van Pelt ENVELOPE(35.717,35.717,-71.250,-71.250) |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
glaciers climate historical photogrammetry DEM Svalbard |
spellingShingle |
glaciers climate historical photogrammetry DEM Svalbard Emily Geyman Ward van Pelt Adam Maloof Harald Faste Aas Jack Kohler Supplementary data for: "Historical glacier change on Svalbard predicts doubling of mass loss by 2100" |
topic_facet |
glaciers climate historical photogrammetry DEM Svalbard |
description |
Supplementary datasets for: Geyman, E.C., van Pelt, W., Maloof, A.C., Faste Aas, H., and Kohler, J., 2021. "Historical glacier change on Svalbard predicts doubling of mass loss by 2100." Nature. Abstract: The melting of glaciers and ice caps accounts for about one third of current sea level rise, exceeding the mass loss from the more voluminous Greenland or Antarctic Ice Sheets. The Arctic archipelago of Svalbard, which hosts spatial climate gradients that are larger than the expected temporal shifts over the next century, is a natural laboratory to constrain the climate sensitivity of glaciers and predict their response to future warming. Leveraging an archive of historical aerial images from 1936 and 1938, we use structure-from-motion (SfM) photogrammetry to reconstruct the 3D geometry of 1,594 glaciers across Svalbard. We compare these reconstructions to modern ice elevation data to derive the spatial pattern of mass balance over a >70-year timespan, allowing us to see through the noise of annual and decadal variability to quantify how variables such as temperature and precipitation control ice loss. We find a robust temperature dependence of melt rates, whereby a 1°C rise in mean summer temperature corresponds to a decrease in area-normalized mass balance of -0.28 m yr-1 of water equivalent. Finally, we design a space-for-time substitution to make first-order predictions of 21st century glacier change across Svalbard. Even in the most modest scenario (a ~1.4°C rise in mean summer temperature by 2100), we predict average glacier thinning rates in 2010-2100 of -0.67 m yr-1, approximately twice the 1936-2010 rates. Dataset description: This dataset contains the digital elevation models (DEMs), elevation change maps, point clouds, orthophotos, and vector outlines of glacier extents based on the Norwegian Polar Institute's collection of 5,507 high-oblique aerial images captured over Svalbard in 1936/1938. The photographs were analyzed through structure-from-motion (SfM) photogrammetry to generate 3D models. We ... |
format |
Dataset |
author |
Emily Geyman Ward van Pelt Adam Maloof Harald Faste Aas Jack Kohler |
author_facet |
Emily Geyman Ward van Pelt Adam Maloof Harald Faste Aas Jack Kohler |
author_sort |
Emily Geyman |
title |
Supplementary data for: "Historical glacier change on Svalbard predicts doubling of mass loss by 2100" |
title_short |
Supplementary data for: "Historical glacier change on Svalbard predicts doubling of mass loss by 2100" |
title_full |
Supplementary data for: "Historical glacier change on Svalbard predicts doubling of mass loss by 2100" |
title_fullStr |
Supplementary data for: "Historical glacier change on Svalbard predicts doubling of mass loss by 2100" |
title_full_unstemmed |
Supplementary data for: "Historical glacier change on Svalbard predicts doubling of mass loss by 2100" |
title_sort |
supplementary data for: "historical glacier change on svalbard predicts doubling of mass loss by 2100" |
publishDate |
2021 |
url |
https://zenodo.org/record/5644415 https://doi.org/10.5281/zenodo.5644415 |
long_lat |
ENVELOPE(35.717,35.717,-71.250,-71.250) |
geographic |
Arctic Antarctic Svalbard Greenland Van Pelt |
geographic_facet |
Arctic Antarctic Svalbard Greenland Van Pelt |
genre |
Antarc* Antarctic Arctic Archipelago Arctic glacier glacier Greenland Svalbard |
genre_facet |
Antarc* Antarctic Arctic Archipelago Arctic glacier glacier Greenland Svalbard |
op_relation |
doi:10.5281/zenodo.5644414 https://zenodo.org/record/5644415 https://doi.org/10.5281/zenodo.5644415 oai:zenodo.org:5644415 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.564441510.5281/zenodo.5644414 |
_version_ |
1766276826773061632 |