Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream
The North East Greenland Ice Stream (NEGIS) is one of the largest ice streams, reaching far inland and draining 12% of the interior Greenland ice mass towards the ocean. Ice flow dynamics and subglacial properties of large parts of the NEGIS are not well studied or understood but are necessary to im...
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ftawi:oai:epic.awi.de:50856 2024-09-15T18:04:13+00:00 Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream Franke, Steven Jansen, Daniela Binder, Tobias Dörr, Nils Helm, Veit Paden, John Steinhage, Daniel Eisen, Olaf 2019-11 application/pdf https://epic.awi.de/id/eprint/50856/ https://epic.awi.de/id/eprint/50856/1/EGRIP_SC_2019_NEGIS_Bedrock_Steven_Franke.pdf https://hdl.handle.net/10013/epic.7abf3e41-342e-4b9d-9453-2c8b59235881 unknown https://epic.awi.de/id/eprint/50856/1/EGRIP_SC_2019_NEGIS_Bedrock_Steven_Franke.pdf Franke, S. orcid:0000-0001-8462-4379 , Jansen, D. orcid:0000-0002-4412-5820 , Binder, T. , Dörr, N. , Helm, V. orcid:0000-0001-7788-9328 , Paden, J. , Steinhage, D. orcid:0000-0003-4737-9751 and Eisen, O. orcid:0000-0002-6380-962X (2019) Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream , EastGRIP Steering Committee Meeting, Copenhagen, Denmark., Copenhagen, Denmark, November 2019 - unspecified . hdl:10013/epic.7abf3e41-342e-4b9d-9453-2c8b59235881 EPIC3EastGRIP Steering Committee Meeting, Copenhagen, Denmark., Copenhagen, Denmark, 2019-11 Conference notRev 2019 ftawi 2024-06-24T04:23:24Z The North East Greenland Ice Stream (NEGIS) is one of the largest ice streams, reaching far inland and draining 12% of the interior Greenland ice mass towards the ocean. Ice flow dynamics and subglacial properties of large parts of the NEGIS are not well studied or understood but are necessary to improve the accuracy of sea-level projections. Here,we present a record of more than 8000km of radar survey lines of radio echo sounding data covering an area of 24 000km^2 centred on the drill site for the East Greenland Ice-core Project (EGRIP) in the central part of the NEGIS. The acquisition system was a multichannel ultra-wideband radar mounted on AWI’s Polar6 aircraft. Our data yield a newdetailedmodel of ice-thickness distribution and basal topography in the region. Subglacial bedrock structures and reflection patterns indicate traces of the activity of the NEGIS such as elongated structures in ice flow direction and features indicating erosion and deposition of sediments. Conference Object East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
The North East Greenland Ice Stream (NEGIS) is one of the largest ice streams, reaching far inland and draining 12% of the interior Greenland ice mass towards the ocean. Ice flow dynamics and subglacial properties of large parts of the NEGIS are not well studied or understood but are necessary to improve the accuracy of sea-level projections. Here,we present a record of more than 8000km of radar survey lines of radio echo sounding data covering an area of 24 000km^2 centred on the drill site for the East Greenland Ice-core Project (EGRIP) in the central part of the NEGIS. The acquisition system was a multichannel ultra-wideband radar mounted on AWI’s Polar6 aircraft. Our data yield a newdetailedmodel of ice-thickness distribution and basal topography in the region. Subglacial bedrock structures and reflection patterns indicate traces of the activity of the NEGIS such as elongated structures in ice flow direction and features indicating erosion and deposition of sediments. |
format |
Conference Object |
author |
Franke, Steven Jansen, Daniela Binder, Tobias Dörr, Nils Helm, Veit Paden, John Steinhage, Daniel Eisen, Olaf |
spellingShingle |
Franke, Steven Jansen, Daniela Binder, Tobias Dörr, Nils Helm, Veit Paden, John Steinhage, Daniel Eisen, Olaf Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream |
author_facet |
Franke, Steven Jansen, Daniela Binder, Tobias Dörr, Nils Helm, Veit Paden, John Steinhage, Daniel Eisen, Olaf |
author_sort |
Franke, Steven |
title |
Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream |
title_short |
Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream |
title_full |
Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream |
title_fullStr |
Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream |
title_full_unstemmed |
Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream |
title_sort |
bedrock topography and subglacial landforms of the north east greenland ice stream |
publishDate |
2019 |
url |
https://epic.awi.de/id/eprint/50856/ https://epic.awi.de/id/eprint/50856/1/EGRIP_SC_2019_NEGIS_Bedrock_Steven_Franke.pdf https://hdl.handle.net/10013/epic.7abf3e41-342e-4b9d-9453-2c8b59235881 |
genre |
East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core |
genre_facet |
East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core |
op_source |
EPIC3EastGRIP Steering Committee Meeting, Copenhagen, Denmark., Copenhagen, Denmark, 2019-11 |
op_relation |
https://epic.awi.de/id/eprint/50856/1/EGRIP_SC_2019_NEGIS_Bedrock_Steven_Franke.pdf Franke, S. orcid:0000-0001-8462-4379 , Jansen, D. orcid:0000-0002-4412-5820 , Binder, T. , Dörr, N. , Helm, V. orcid:0000-0001-7788-9328 , Paden, J. , Steinhage, D. orcid:0000-0003-4737-9751 and Eisen, O. orcid:0000-0002-6380-962X (2019) Bedrock Topography and Subglacial Landforms of the North East Greenland Ice Stream , EastGRIP Steering Committee Meeting, Copenhagen, Denmark., Copenhagen, Denmark, November 2019 - unspecified . hdl:10013/epic.7abf3e41-342e-4b9d-9453-2c8b59235881 |
_version_ |
1810441701290934272 |