Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream
We present a high-resolution airborne radar data set (EGRIP-NOR-2018) for the onset region of the Northeast Greenland Ice Stream (NEGIS). The radar data were acquired in May 2018 with the Alfred Wegener Institute's multichannel ultra-wideband (UWB) radar mounted on the Polar 6 aircraft. Radar p...
Published in: | Earth System Science Data |
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Main Authors: | , , , , , , , , , , , , |
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Language: | English |
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2022
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Online Access: | https://curis.ku.dk/portal/da/publications/airborne-ultrawideband-radar-sounding-over-the-shear-margins-and-along-flow-lines-at-the-onset-region-of-the-northeast-greenland-ice-stream(5919d892-30de-4b39-8fb5-28be6a18727e).html https://doi.org/10.5194/essd-14-763-2022 https://curis.ku.dk/ws/files/302386905/essd_14_763_2022.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/5919d892-30de-4b39-8fb5-28be6a18727e 2024-06-09T07:40:48+00:00 Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream Franke, Steven Jansen, Daniela Binder, Tobias Paden, John D. Doerr, Nils Gerber, Tamara A. Miller, Heinrich Dahl-Jensen, Dorthe Helm, Veit Steinhage, Daniel Weikusat, Ilka Wilhelms, Frank Eisen, Olaf 2022-02-21 application/pdf https://curis.ku.dk/portal/da/publications/airborne-ultrawideband-radar-sounding-over-the-shear-margins-and-along-flow-lines-at-the-onset-region-of-the-northeast-greenland-ice-stream(5919d892-30de-4b39-8fb5-28be6a18727e).html https://doi.org/10.5194/essd-14-763-2022 https://curis.ku.dk/ws/files/302386905/essd_14_763_2022.pdf eng eng info:eu-repo/semantics/openAccess Franke , S , Jansen , D , Binder , T , Paden , J D , Doerr , N , Gerber , T A , Miller , H , Dahl-Jensen , D , Helm , V , Steinhage , D , Weikusat , I , Wilhelms , F & Eisen , O 2022 , ' Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream ' , Earth System Science Data , vol. 14 , no. 2 , pp. 763-779 . https://doi.org/10.5194/essd-14-763-2022 GROUND-PENETRATING RADAR DRONNING MAUD LAND INTERNAL LAYERS ACCUMULATION PATTERN WEST ANTARCTICA CORE SITE SHEET DOME THICKNESS DYNAMICS article 2022 ftcopenhagenunip https://doi.org/10.5194/essd-14-763-2022 2024-05-16T11:29:23Z We present a high-resolution airborne radar data set (EGRIP-NOR-2018) for the onset region of the Northeast Greenland Ice Stream (NEGIS). The radar data were acquired in May 2018 with the Alfred Wegener Institute's multichannel ultra-wideband (UWB) radar mounted on the Polar 6 aircraft. Radar profiles cover an area of similar to 24 000 km(2) and extend over the well-defined shear margins of the NEGIS. The survey area is centered at the location of the drill site of the East Greenland Ice-Core Project (EastGRIP), and several radar lines intersect at this location. The survey layout was designed to (i) map the stratigraphic signature of the shear margins with radar profiles aligned perpendicular to ice flow, (ii) trace the radar stratigraphy along several flow lines, and (iii) provide spatial coverage of ice thickness and basal properties. While we are able to resolve radar reflections in the deep stratigraphy, we cannot fully resolve the steeply inclined reflections at the tightly folded shear margins in the lower part of the ice column. The NEGIS is causing the most significant discrepancies between numerically modeled and observed ice surface velocities. Given the high likelihood of future climate and ocean warming, this extensive data set of new high-resolution radar data in combination with the EastGRIP ice core will be a key contribution to understand the past and future dynamics of the NEGIS. The EGRIP-NOR-2018 radar data products can be obtained from the PANGAEA data publisher (https://doi.pangaea.de/10.1594/PANGAEA. 928569; Franke et al., 2021a). Article in Journal/Newspaper Antarc* Antarctica Dronning Maud Land East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core West Antarctica University of Copenhagen: Research Dronning Maud Land Greenland West Antarctica Earth System Science Data 14 2 763 779 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
GROUND-PENETRATING RADAR DRONNING MAUD LAND INTERNAL LAYERS ACCUMULATION PATTERN WEST ANTARCTICA CORE SITE SHEET DOME THICKNESS DYNAMICS |
spellingShingle |
GROUND-PENETRATING RADAR DRONNING MAUD LAND INTERNAL LAYERS ACCUMULATION PATTERN WEST ANTARCTICA CORE SITE SHEET DOME THICKNESS DYNAMICS Franke, Steven Jansen, Daniela Binder, Tobias Paden, John D. Doerr, Nils Gerber, Tamara A. Miller, Heinrich Dahl-Jensen, Dorthe Helm, Veit Steinhage, Daniel Weikusat, Ilka Wilhelms, Frank Eisen, Olaf Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream |
topic_facet |
GROUND-PENETRATING RADAR DRONNING MAUD LAND INTERNAL LAYERS ACCUMULATION PATTERN WEST ANTARCTICA CORE SITE SHEET DOME THICKNESS DYNAMICS |
description |
We present a high-resolution airborne radar data set (EGRIP-NOR-2018) for the onset region of the Northeast Greenland Ice Stream (NEGIS). The radar data were acquired in May 2018 with the Alfred Wegener Institute's multichannel ultra-wideband (UWB) radar mounted on the Polar 6 aircraft. Radar profiles cover an area of similar to 24 000 km(2) and extend over the well-defined shear margins of the NEGIS. The survey area is centered at the location of the drill site of the East Greenland Ice-Core Project (EastGRIP), and several radar lines intersect at this location. The survey layout was designed to (i) map the stratigraphic signature of the shear margins with radar profiles aligned perpendicular to ice flow, (ii) trace the radar stratigraphy along several flow lines, and (iii) provide spatial coverage of ice thickness and basal properties. While we are able to resolve radar reflections in the deep stratigraphy, we cannot fully resolve the steeply inclined reflections at the tightly folded shear margins in the lower part of the ice column. The NEGIS is causing the most significant discrepancies between numerically modeled and observed ice surface velocities. Given the high likelihood of future climate and ocean warming, this extensive data set of new high-resolution radar data in combination with the EastGRIP ice core will be a key contribution to understand the past and future dynamics of the NEGIS. The EGRIP-NOR-2018 radar data products can be obtained from the PANGAEA data publisher (https://doi.pangaea.de/10.1594/PANGAEA. 928569; Franke et al., 2021a). |
format |
Article in Journal/Newspaper |
author |
Franke, Steven Jansen, Daniela Binder, Tobias Paden, John D. Doerr, Nils Gerber, Tamara A. Miller, Heinrich Dahl-Jensen, Dorthe Helm, Veit Steinhage, Daniel Weikusat, Ilka Wilhelms, Frank Eisen, Olaf |
author_facet |
Franke, Steven Jansen, Daniela Binder, Tobias Paden, John D. Doerr, Nils Gerber, Tamara A. Miller, Heinrich Dahl-Jensen, Dorthe Helm, Veit Steinhage, Daniel Weikusat, Ilka Wilhelms, Frank Eisen, Olaf |
author_sort |
Franke, Steven |
title |
Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream |
title_short |
Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream |
title_full |
Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream |
title_fullStr |
Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream |
title_full_unstemmed |
Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream |
title_sort |
airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the northeast greenland ice stream |
publishDate |
2022 |
url |
https://curis.ku.dk/portal/da/publications/airborne-ultrawideband-radar-sounding-over-the-shear-margins-and-along-flow-lines-at-the-onset-region-of-the-northeast-greenland-ice-stream(5919d892-30de-4b39-8fb5-28be6a18727e).html https://doi.org/10.5194/essd-14-763-2022 https://curis.ku.dk/ws/files/302386905/essd_14_763_2022.pdf |
geographic |
Dronning Maud Land Greenland West Antarctica |
geographic_facet |
Dronning Maud Land Greenland West Antarctica |
genre |
Antarc* Antarctica Dronning Maud Land East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core West Antarctica |
genre_facet |
Antarc* Antarctica Dronning Maud Land East Greenland East Greenland Ice-core Project Greenland Greenland ice core Greenland Ice core Project ice core West Antarctica |
op_source |
Franke , S , Jansen , D , Binder , T , Paden , J D , Doerr , N , Gerber , T A , Miller , H , Dahl-Jensen , D , Helm , V , Steinhage , D , Weikusat , I , Wilhelms , F & Eisen , O 2022 , ' Airborne ultra-wideband radar sounding over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream ' , Earth System Science Data , vol. 14 , no. 2 , pp. 763-779 . https://doi.org/10.5194/essd-14-763-2022 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/essd-14-763-2022 |
container_title |
Earth System Science Data |
container_volume |
14 |
container_issue |
2 |
container_start_page |
763 |
op_container_end_page |
779 |
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1801369196749127680 |