10.1594/PANGAEA.995574Steinhage, DanielDanielSteinhageAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenHelm, VeitVeitHelm0000-0001-7788-9328Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, BremerhavenPANGAEA2026AWI EMRGreenland ice sheetPolar 2radio-echo soundingSeasonProfile IDInstrumentRadar productnetCDF filenetCDF file (File Size)GIS fileImageAircraftIce Thickness Radar radio-echo sounding RES [Nixdorf et al. 1999]Aeromag_1995POLAR 21995-06-20T13:53:45/1995-07-10T18:35:23Dataset10.1594/PANGAEA.97209410.5194/tc-20-2485-202610.3189/172756499781821346https://registry.o2a-data.de/items/6794147 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalThis dataset contains airborne radar data acquired using the AWI EMR system (Nixdorf et al., 1999) during the Arctic season of 1995. The profiles extend in a grid in the northeasternmost part of the Greenland Ice Sheet. 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 PI: Daniel Steinhage (AWI)
Contact persons for AWI Radio-echo sounding data: Daniel Steinhage (daniel.steinhage@awi.de), Veit Helm (veit.helm@awi.de), Olaf Eisen (olaf.eisen@awi.de)
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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
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The KML files are in EPSG:4326, and the quicklook images show the AGC product of the radargram.-30.20433-14.0114780.25978982.49411