10.1594/PANGAEA.988413Humbert, AngelikaAngelikaHumbert0000-0002-0244-8760Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenBinder, TobiasTobiasBinder0000-0002-9826-8835Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenSteinhage, DanielDanielSteinhageAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenHelm, VeitVeitHelm0000-0001-7788-9328Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenPANGAEA202679°N Glacier79 North GlacierAWI UWBGreenland ice sheetPolar 6radio-echo soundingsubglacial channelsubglacial dischargeSeasonEvent labelProfile IDInstrumentRadar productnetCDF filenetCDF file (File Size)GIS fileImageAircraftUltra-wideband radar (UWB), MCoRDS 5P6-211_RESURV79_2018POLAR 62018-04-11T09:46:42/2018-04-27T00:00:01Dataset10.1594/PANGAEA.97209410.5194/tc-20-2485-202610.5194/tc-18-1333-2024https://registry.o2a-data.de/items/68092140 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalThis 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.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.-16.665768-16.65981.59681.596813North Greenland SeaAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhavenhttps://doi.org/10.13039/501100003207AWI_PA_02095P6-211_RESURV79_2018