Citation:

PANGAEA.987233 (DOI registration in progress)

Name: ARK 2018: AWI airborne ultra-wideband microwave radar data at and upstream of 79°N Glacier, northeast Greenland Ice Sheet (RESURV 79 Project)
Published: 2025-12-08
License: https://creativecommons.org/licenses/by/4.0/
Keywords: 79°N Glacier; 79 North Glacier; AWI UWBM; Greenland ice sheet; Polar 6; radio-echo sounding

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Published: 2025-12-08

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Abstract:

This dataset contains airborne radar data acquired using the AWI ultra-wideband microwave radar (UWBM) during the Arctic season of 2018. The profiles extend across the Greenland Ice Sheet over and upstream of 79°N Glacier (Nioghalvfjerdsbræ; northeast Greenland). Furthermore, one flight extends over sea ice northeast 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. For every profile we provide four radar products (img_01, img_02, img_03, img_04), which correspond to the four polarizations (VV, VH, HH, HV).

Keyword(s):

79°N Glacier; 79 North Glacier; AWI UWBM; Greenland ice sheet; Polar 6; radio-echo sounding

Related to:

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

Humbert, Angelika; Schröder, Ludwig; Schultz, Timm; Müller, Ralf; Neckel, Niklas; Helm, Veit; Zindler, Robin; Eleftheriadis, Konstantinos; Salzano, Roberto; Salvatori, Rosamaria (2020): Dark Glacier Surface of Greenland’s Largest Floating Tongue Governed by High Local Deposition of Dust. Remote Sensing, 12(22), 3793, https://doi.org/10.3390/rs12223793

Additional metadata:

O2A Registry: Metadata for radar system Ultra -wideband microwave snow radar at current version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, hdl:10013/sensor.4c8fd7e7-f49c-48f0-9595-8aff8c4d2112

Funding:

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PA_02095: P6-211_RESURV79_2018

Coverage:

Median Latitude: 76.699424 * Median Longitude: -11.081789 * South-bound Latitude: 53.050013 * West-bound Longitude: -16.665768 * North-bound Latitude: 81.596818 * East-bound Longitude: 15.501109

Date/Time Start: 2018-03-29T13:02:26 * Date/Time End: 2018-04-23T14:45:28

Event(s):

P6_211_RESURV79_2018_1803290101 * Latitude Start: 53.050554 * Longitude Start: 8.783705 * Latitude End: 53.052678 * Longitude End: 8.781607 * Date/Time Start: 2018-03-29T13:02:26 * Date/Time End: 2018-03-29T15:23:26 * Location: North Sea * Campaign: (RESURV79, FINEGIS) * Basis: POLAR 6 * Method/Device: Aircraft (AC)

P6_211_RESURV79_2018_1804040201 * Latitude Start: 53.050013 * Longitude Start: 8.784863 * Latitude End: 53.052683 * Longitude End: 8.781572 * Date/Time Start: 2018-04-04T08:02:57 * Date/Time End: 2018-04-04T10:26:58 * Location: North Sea * Campaign: (RESURV79, FINEGIS) * Basis: POLAR 6 * Method/Device: Aircraft (AC)

P6_211_RESURV79_2018_1804100301 * Latitude Start: 78.245918 * Longitude Start: 15.501109 * Latitude End: 81.596199 * Longitude End: -16.659362 * Date/Time Start: 2018-04-10T06:52:57 * Date/Time End: 2018-04-10T10:37:54 * Location: North Greenland Sea * Campaign: (RESURV79, FINEGIS) * Basis: POLAR 6 * Method/Device: Aircraft (AC)

Comment:

Project: RESURV 79 (Re-survey of the 79° Glacier)

Region: 79°N Glacier (Nioghalvfjerdsbræ)

Data Owner/Correspondence:

Angelika Humbert (Alfred Wegener Institut Bremerhaven, Germany), Contact: angelika.humbert@awi.de

Daniel Steinhage (Alfred Wegener Institut Bremerhaven, Germany), Contact: daniel.steinhage@awi.de

Veit Helm (Alfred Wegener Institut Bremerhaven, Germany), Contact: veit.helm@awi.de

Instrument used: AWI UWBM

Data products: CSARP_qlook (unfocussed)

Method of navigation : GPS data was acquired by four NovAtel DL-V3 GPS receivers operating at 20Hz

The four radar products correspond to the following polarizations:

img_01 = VV

img_02 = VH (V receiver, H transmit)

img_03 = HH

img_04 = HV (H receiver, V transmit)

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

Parameter(s):

#	Name	Short Name	Principal Investigator	Method/Device	Comment
1	Season	Season	Humbert, Angelika
2	Event label	Event	Humbert, Angelika
3	Profile ID	Profile ID	Humbert, Angelika
4	Instrument	Instrument	Humbert, Angelika
5	Radar product	Radar prod	Humbert, Angelika
6	netCDF file	netCDF	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	qlook img_01
7	netCDF file	netCDF	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	qlook img02
8	netCDF file	netCDF	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	qlook img03
9	netCDF file	netCDF	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	qlook img04
10	GIS file	GIS	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	KML Files, qlook
11	Image	IMAGE	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	Quicklooks, qlook img01
12	Image	IMAGE	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	Quicklooks, qlook img02
13	Image	IMAGE	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	Quicklooks, qlook img03
14	Image	IMAGE	Humbert, Angelika	Airborne ultra-wideband microwave radar (UWBM)	Quicklooks, qlook img04

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

4342 data points

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