Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard
Svalbard tidewater glaciers are retreating, which will affect fjord circulation and ecosystems when glacier fronts become land-terminating. Knowledge of the subglacial topography and bathymetry under retreating glaciers is important to modelling future scenarios of fjord circulation and glacier dyna...
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ftdoajarticles:oai:doaj.org/article:9db04b01e18243fba6866f8c291ba936 2023-05-15T16:22:10+02:00 Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard K. Lindbäck J. Kohler R. Pettersson C. Nuth K. Langley A. Messerli D. Vallot K. Matsuoka O. Brandt 2018-10-01T00:00:00Z https://doi.org/10.5194/essd-10-1769-2018 https://doaj.org/article/9db04b01e18243fba6866f8c291ba936 EN eng Copernicus Publications https://www.earth-syst-sci-data.net/10/1769/2018/essd-10-1769-2018.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-10-1769-2018 1866-3508 1866-3516 https://doaj.org/article/9db04b01e18243fba6866f8c291ba936 Earth System Science Data, Vol 10, Pp 1769-1781 (2018) Environmental sciences GE1-350 Geology QE1-996.5 article 2018 ftdoajarticles https://doi.org/10.5194/essd-10-1769-2018 2022-12-31T12:09:13Z Svalbard tidewater glaciers are retreating, which will affect fjord circulation and ecosystems when glacier fronts become land-terminating. Knowledge of the subglacial topography and bathymetry under retreating glaciers is important to modelling future scenarios of fjord circulation and glacier dynamics. We present high-resolution (150 m gridded) digital elevation models of subglacial topography, ice thickness, and ice surface elevation of five tidewater glaciers in Kongsfjorden (1100 km 2 ), northwestern Spitsbergen, based on ∼ 1700 km airborne and ground-based ice-penetrating radar profiles. The digital elevation models (DEMs) cover the tidewater glaciers Blomstrandbreen, Conwaybreen, Kongsbreen, Kronebreen, and Kongsvegen and are merged with bathymetric and land DEMs for the non-glaciated areas. The large-scale subglacial topography of the study area is characterized by a series of troughs and highs. The minimum subglacial elevation is −180 m above sea level (a.s.l.), the maximum subglacial elevation is 1400 m a.s.l., and the maximum ice thickness is 740 m. Three of the glaciers, Kongsbreen, Kronebreen, and Kongsvegen, have the potential to retreat by ∼ 10 km before they become land-terminating. The compiled data set covers one of the most studied regions in Svalbard and is valuable for future studies of glacier dynamics, geology, hydrology, and fjord circulation. The data set is freely available at the Norwegian Polar Data Centre ( https://doi.org/10.21334/npolar.2017.702ca4a7 ). Article in Journal/Newspaper glacier Kongsfjord* Kongsfjorden Svalbard Tidewater Spitsbergen Directory of Open Access Journals: DOAJ Articles Svalbard Kronebreen ENVELOPE(13.333,13.333,78.833,78.833) Kongsvegen ENVELOPE(12.657,12.657,78.854,78.854) Kongsbreen ENVELOPE(12.475,12.475,78.984,78.984) Blomstrandbreen ENVELOPE(12.167,12.167,79.033,79.033) Conwaybreen ENVELOPE(12.600,12.600,79.033,79.033) Earth System Science Data 10 4 1769 1781 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental sciences GE1-350 Geology QE1-996.5 |
spellingShingle |
Environmental sciences GE1-350 Geology QE1-996.5 K. Lindbäck J. Kohler R. Pettersson C. Nuth K. Langley A. Messerli D. Vallot K. Matsuoka O. Brandt Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard |
topic_facet |
Environmental sciences GE1-350 Geology QE1-996.5 |
description |
Svalbard tidewater glaciers are retreating, which will affect fjord circulation and ecosystems when glacier fronts become land-terminating. Knowledge of the subglacial topography and bathymetry under retreating glaciers is important to modelling future scenarios of fjord circulation and glacier dynamics. We present high-resolution (150 m gridded) digital elevation models of subglacial topography, ice thickness, and ice surface elevation of five tidewater glaciers in Kongsfjorden (1100 km 2 ), northwestern Spitsbergen, based on ∼ 1700 km airborne and ground-based ice-penetrating radar profiles. The digital elevation models (DEMs) cover the tidewater glaciers Blomstrandbreen, Conwaybreen, Kongsbreen, Kronebreen, and Kongsvegen and are merged with bathymetric and land DEMs for the non-glaciated areas. The large-scale subglacial topography of the study area is characterized by a series of troughs and highs. The minimum subglacial elevation is −180 m above sea level (a.s.l.), the maximum subglacial elevation is 1400 m a.s.l., and the maximum ice thickness is 740 m. Three of the glaciers, Kongsbreen, Kronebreen, and Kongsvegen, have the potential to retreat by ∼ 10 km before they become land-terminating. The compiled data set covers one of the most studied regions in Svalbard and is valuable for future studies of glacier dynamics, geology, hydrology, and fjord circulation. The data set is freely available at the Norwegian Polar Data Centre ( https://doi.org/10.21334/npolar.2017.702ca4a7 ). |
format |
Article in Journal/Newspaper |
author |
K. Lindbäck J. Kohler R. Pettersson C. Nuth K. Langley A. Messerli D. Vallot K. Matsuoka O. Brandt |
author_facet |
K. Lindbäck J. Kohler R. Pettersson C. Nuth K. Langley A. Messerli D. Vallot K. Matsuoka O. Brandt |
author_sort |
K. Lindbäck |
title |
Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard |
title_short |
Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard |
title_full |
Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard |
title_fullStr |
Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard |
title_full_unstemmed |
Subglacial topography, ice thickness, and bathymetry of Kongsfjorden, northwestern Svalbard |
title_sort |
subglacial topography, ice thickness, and bathymetry of kongsfjorden, northwestern svalbard |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/essd-10-1769-2018 https://doaj.org/article/9db04b01e18243fba6866f8c291ba936 |
long_lat |
ENVELOPE(13.333,13.333,78.833,78.833) ENVELOPE(12.657,12.657,78.854,78.854) ENVELOPE(12.475,12.475,78.984,78.984) ENVELOPE(12.167,12.167,79.033,79.033) ENVELOPE(12.600,12.600,79.033,79.033) |
geographic |
Svalbard Kronebreen Kongsvegen Kongsbreen Blomstrandbreen Conwaybreen |
geographic_facet |
Svalbard Kronebreen Kongsvegen Kongsbreen Blomstrandbreen Conwaybreen |
genre |
glacier Kongsfjord* Kongsfjorden Svalbard Tidewater Spitsbergen |
genre_facet |
glacier Kongsfjord* Kongsfjorden Svalbard Tidewater Spitsbergen |
op_source |
Earth System Science Data, Vol 10, Pp 1769-1781 (2018) |
op_relation |
https://www.earth-syst-sci-data.net/10/1769/2018/essd-10-1769-2018.pdf https://doaj.org/toc/1866-3508 https://doaj.org/toc/1866-3516 doi:10.5194/essd-10-1769-2018 1866-3508 1866-3516 https://doaj.org/article/9db04b01e18243fba6866f8c291ba936 |
op_doi |
https://doi.org/10.5194/essd-10-1769-2018 |
container_title |
Earth System Science Data |
container_volume |
10 |
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4 |
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1769 |
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1781 |
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1766010133527134208 |