Citation:

PANGAEA.987347

Name: ANT 2015/16: AWI airborne Radio-Echo Sounding data western DML over the Maud Belt and Ekström Ice Shelf (GEA-V-FMA project)
Published: 2025-11-11
License: https://creativecommons.org/licenses/by/4.0/
Keywords: AWI EMR; DML; Dronning Maud Land; Ekström Isen; Maud Belt; Polar 5; radio-echo sounding

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Published: 2025-11-11 • DOI registered: 2025-12-10

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Abstract:

This dataset contains airborne radar data acquired using the AWI EMR system (Nixdorf et al., 1999) during the Arctic season of 2015. The profiles extend western DML over the Maud Belt and Ekström Ice Shelf to investigate the geodynamic evolution of East Antarctica, the Forster magnetic anomaly (GEA-V-FMA). The data are available as netCDF files (including waveforms and metadata), KML files of the profile line locations, and quicklook images of the radargrams.

Keyword(s):

AWI EMR; DML; Dronning Maud Land; Ekström Isen; Maud Belt; Polar 5; 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

Nixdorf, Uwe; Steinhage, Daniel; Meyer, Uwe F; Hempel, L; Jenett, Martin; Wachs, P; Miller, Heinrich (1999): The newly developed airborne radio-echo sounding system of the AWI as a glaciological tool. Annals of Glaciology, 29, 231-238, https://doi.org/10.3189/172756499781821346

Additional metadata:

O2A Registry: Metadata for radar system Ice Thickness Radar 150 MHz at current version. Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research, https://registry.o2a-data.de/items/6794

Funding:

Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PA_02077: P5-200_ANT_2015_2016, GEA-V-FMA

Coverage:

Median Latitude: -62.450690 * Median Longitude: -6.058398 * South-bound Latitude: -71.717889 * West-bound Longitude: -8.282642 * North-bound Latitude: 53.503692 * East-bound Longitude: 11.642147

Date/Time Start: 2015-09-24T09:49:38 * Date/Time End: 2016-01-04T12:59:20

Event(s):

P5_200_ANT_2015_2016_1509240101 * Latitude Start: 53.503692 * Longitude Start: 8.570948 * Latitude End: 53.503555 * Longitude End: 8.571269 * Date/Time Start: 2015-09-24T09:49:38 * Date/Time End: 2015-09-24T11:42:37 * Campaign: (GEA-V-FMA, P5-ANT_GEA_2015_2016) * Basis: POLAR 5 * Method/Device: Aircraft (AC) * Comment: Certification flight

P5_200_ANT_2015_2016_1512140201 * Latitude Start: -70.669046 * Longitude Start: -8.282642 * Latitude End: -70.669076 * Longitude End: -8.281962 * Date/Time Start: 2015-12-14T09:22:15 * Date/Time End: 2015-12-14T10:51:13 * Location: Antarctica * Campaign: (GEA-V-FMA, P5-ANT_GEA_2015_2016) * Basis: POLAR 5 * Method/Device: Aircraft (AC)

P5_200_ANT_2015_2016_1512150301 * Latitude Start: -70.669077 * Longitude Start: -8.281964 * Latitude End: -70.669083 * Longitude End: -8.281950 * Date/Time Start: 2015-12-15T08:43:50 * Date/Time End: 2015-12-15T09:57:48 * Location: Antarctica * Campaign: (GEA-V-FMA, P5-ANT_GEA_2015_2016) * Basis: POLAR 5 * Method/Device: Aircraft (AC)

Comment:

Project PI: Graeme Eagles (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)

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

The KML files are in EPSG:4326, and the quicklook images show the AGC product of the radargram.

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Season	Season		Eagles, Graeme
2	Profile ID	Profile ID		Eagles, Graeme
3	Instrument	Instrument		Eagles, Graeme
4	Radar product	Radar prod		Eagles, Graeme
5	netCDF file	netCDF		Eagles, Graeme	Ice Thickness Radar radio-echo sounding RES [Nixdorf et al. 1999]
6	netCDF file (File Size)	netCDF (Size)	Bytes	Eagles, Graeme	Ice Thickness Radar radio-echo sounding RES [Nixdorf et al. 1999]
7	GIS file	GIS		Eagles, Graeme	Ice Thickness Radar radio-echo sounding RES [Nixdorf et al. 1999]	KML Files
8	Image	IMAGE		Eagles, Graeme	Ice Thickness Radar radio-echo sounding RES [Nixdorf et al. 1999]	Quicklook

License:

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

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

133 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

All files referred to in data matrix can be downloaded in one go as ZIP or TAR. Be careful: This download can be very large! To protect our systems from misuse, we require to sign up for an user account before downloading.

1 Season	2 Profile ID	3 Instrument	4 Radar prod	5 netCDF	6 netCDF (Size) [Bytes]	7 GIS	8 IMAGE
ANT 2016/16	20162002	EMR	600 ns pulse	20162002_stp7.nc	144.6 MBytes	20162002_stp7.kml	20162002_stp7.jpg
ANT 2016/16	20162003	EMR	600 ns pulse	20162003_stp7.nc	465.6 MBytes	20162003_stp7.kml	20162003_stp7.jpg
ANT 2016/16	20162004	EMR	600 ns pulse	20162004_stp7.nc	618.5 MBytes	20162004_stp7.kml	20162004_stp7.jpg
ANT 2016/16	20162005	EMR	600 ns pulse	20162005_stp7.nc	496.4 MBytes	20162005_stp7.kml	20162005_stp7.jpg
ANT 2016/16	20162006	EMR	600 ns pulse	20162006_stp7.nc	159 MBytes	20162006_stp7.kml	20162006_stp7.jpg
ANT 2016/16	20162007	EMR	600 ns pulse	20162007_stp7.nc	542.1 MBytes	20162007_stp7.kml	20162007_stp7.jpg
ANT 2016/16	20162008	EMR	600 ns pulse	20162008_stp7.nc	371.6 MBytes	20162008_stp7.kml	20162008_stp7.jpg
ANT 2016/16	20162009	EMR	600 ns pulse	20162009_stp7.nc	2.6 MBytes	20162009_stp7.kml	20162009_stp7.jpg
ANT 2016/16	20162010	EMR	600 ns pulse	20162010_stp7.nc	169 MBytes	20162010_stp7.kml	20162010_stp7.jpg
ANT 2016/16	20162011	EMR	600 ns pulse	20162011_stp7.nc	193.5 MBytes	20162011_stp7.kml	20162011_stp7.jpg
ANT 2016/16	20162012	EMR	600 ns pulse	20162012_stp7.nc	34.1 MBytes	20162012_stp7.kml	20162012_stp7.jpg
ANT 2016/16	20162013	EMR	600 ns pulse	20162013_stp7.nc	21.8 MBytes	20162013_stp7.kml	20162013_stp7.jpg
ANT 2016/16	20162014	EMR	600 ns pulse	20162014_stp7.nc	126.1 MBytes	20162014_stp7.kml	20162014_stp7.jpg
ANT 2016/16	20162015	EMR	600 ns pulse	20162015_stp7.nc	21.2 MBytes	20162015_stp7.kml	20162015_stp7.jpg
ANT 2016/16	20162016	EMR	600 ns pulse	20162016_stp7.nc	187.2 MBytes	20162016_stp7.kml	20162016_stp7.jpg
ANT 2016/16	20162017	EMR	600 ns pulse	20162017_stp7.nc	652 MBytes	20162017_stp7.kml	20162017_stp7.jpg
ANT 2016/16	20162018	EMR	600 ns pulse	20162018_stp7.nc	476.6 MBytes	20162018_stp7.kml	20162018_stp7.jpg
ANT 2016/16	20162019	EMR	600 ns pulse	20162019_stp7.nc	574.6 MBytes	20162019_stp7.kml	20162019_stp7.jpg
ANT 2016/16	20162020	EMR	600 ns pulse	20162020_stp7.nc	623.1 MBytes	20162020_stp7.kml	20162020_stp7.jpg