PANGAEA_988413 ARK 2018: AWI airborne ultra-wideband radar data at and upstream of 79°N Glacier, northeast Greenland Ice Sheet (RESURV 79 Project) Humbert, Angelika; Binder, Tobias; Steinhage, Daniel; Helm, Veit ARK 2018: AWI airborne ultra-wideband radar data at and upstream of 79°N Glacier, northeast Greenland Ice Sheet (RESURV 79 Project) 2026-02-25 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.988413 Investigator Angelika Humbert Angelika.Humbert@awi.de Earth Science Season Event label Profile ID Instrument Radar product netCDF file netCDF file (File Size) GIS file Image geoscientificInformation 79°N Glacier 79 North Glacier Aircraft AWI UWB Greenland ice sheet P6_211_RESURV79_2018_1804110401 P6_211_RESURV79_2018_1804130501 P6_211_RESURV79_2018_1804140601 P6_211_RESURV79_2018_1804150701 P6_211_RESURV79_2018_1804170801 P6_211_RESURV79_2018_1804180901 P6_211_RESURV79_2018_1804201001 P6_211_RESURV79_2018_1804221101 P6_211_RESURV79_2018_1804270101 P6-211_RESURV79_2018 Polar 6 radio-echo sounding subglacial channel subglacial discharge Ultra-wideband radar (UWB), MCoRDS 5 POLAR 6 2018-04-11 2018-04-27 Complete 81.596 81.596813 -16.665768 -16.659 unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

Leobener Str.

Bremen Bremen 28359 Germany online 2140 data points text/tab-separated-values Eisen, Olaf; Steinhage, Daniel; Franke, Steven; Helm, Veit; Binder, Tobias; Drews, Reinhard; Eagles, Graeme; Humbert, Angelika; Jansen, Daniela; Jokat, Wilfried; Lambrecht, Astrid; Mieth, Matthias; Riedel, Sven; Miller, Heinrich (2024): Collection of datasets from AWI's radio-echo sounding systems on ice sheets and glaciers [dataset bibliography]. PANGAEA, https://doi.org/10.1594/PANGAEA.972094 Franke, Steven; Steinhage, Daniel; Helm, Veit; Binder, Tobias; Nixdorf, Uwe; Miller, Heinrich; Humbert, Angelika; Jansen, Daniela; Eagles, Graeme; Eisermann, Hannes; Jokat, Wilfried; Ruppel, Antonia; Drews, Reinhard; Zuhr, Alexandra; Driemel, Amelie; Walter, Andreas; Konopatzky, Peter; Heß, Robin; Haas, Antonie; Koppe, Roland; Andreas, Pascal H; Eisen, Olaf (2026): Review article: 30 years of airborne radar surveys on the Antarctic and Greenland ice sheets by the Alfred Wegener Institute. The Cryosphere, 20(4), 2485-2530, https://doi.org/10.5194/tc-20-2485-2026 Zeising, Ole; Neckel, Niklas; Dörr, Nils; Helm, Veit; Steinhage, Daniel; Timmermann, Ralph; Humbert, Angelika (2024): Extreme melting at Greenland's largest floating ice tongue. The Cryosphere, 18, 1333-1357, https://doi.org/10.5194/tc-18-1333-2024 O2A Registry: Metadata for radar system Ultra-wideband ice radar at current Version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, https://registry.o2a-data.de/items/6809

This dataset contains airborne radar data acquired using the AWIs multi-channel ultra-wideband radar system (AWI UWB) during the Arctic season of 2018. The profiles extend across the Northeast Greenland Ice Sheet at and upstream of the 79°N Glacier (Nioghalvfjerdsbræ). The data are available as netCDF files (including waveforms and metadata), KML files of the profile line locations, and quicklook images of the radargrams. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.988413"! ** Project: RESURV 79 (Re-survey of the 79° Glacier (2018)) Region: Downstream and upstream region of the 79° N Glacier catchment Owner / PI: Angelika Humbert (angelika.humbert@awi.de) Email address of the provider: angelika.humbert@awi.de daniel.steinhage@awi.de veit.helm@awi.de Instrument used: AWI UWB (MCoRDS 5) Data products: CSARP_standard (SAR focussed), CSARP_qlook (unfocussed) Data product documentation: https://data.cresis.ku.edu/data/rds/rds_readme.pdf Method of navigation : GPS data was acquired by four NovAtel DL-V3 GPS receivers operating at 20Hz -- The netCDF files contain the following variables: altitude: Platform altitude (WGS84) in meters bed_elevation: Bed elevation for each trace (without applying a firn correction and permitivity of ice: 3.15) in meters bed_pick: picked Bed location for each trace, expressed as twt in seconds from time zero data: Radar data (Values in dBm after DC conversion) data_agc: Scaled radar data using automatic gain control (AGC) distance: Along-track distance in meters ice_thickness: Ice thickness for each trace (without applying a firn correction and permitivity of ice: 3.15) in meters lat: Latitude in decimal degrees (WGS84) lon: Longitude in decimal degrees (WGS84) range: Range between sensor and surface in meters spacing: Along-track trace to trace spacing in meters surface: Surface elevation derived from radar (WGS84) in meters surface_pick: Picked surface reflection in two-way travel time in seconds time: Seconds of day twt: Two-way travel time (twt) in seconds -- Note that the surface picks were quality-checked for the standard product. For the qlook product only an auto-tracked surface pick is available.

https://doi.org/10.17815/jlsrf-2-153 POLAR 6 https://doi.org/10.5065/D6H70CW6 netCDF file https://doi.org/10.5065/D6H70CW6 netCDF file (File Size) https://doi.org/10.5194/tc-18-1333-2024 Extreme melting at Greenland's largest floating ice tongue https://doi.org/10.5194/tc-20-2485-2026 Review article: 30 years of airborne radar surveys on the Antarctic and Greenland ice sheets by the Alfred Wegener Institute https://doi.pangaea.de/10.1594/PANGAEA.972094 Collection of datasets from AWI's radio-echo sounding systems on ice sheets and glaciers https://registry.o2a-data.de/items/6809 Metadata for radar system Ultra-wideband ice radar at current Version https://www.awi.de/en/about-us/organisation/staff/single-view/angelika-humbert.html DIF 9.4 2026-02-25 2026-05-15