Haas, Christian; Hames, Oceane; Helm, Veit; Franke, Steven; Jutila, Arttu (2025): ANT 2022/23: AWI airborne ultra-wideband microwave radar data over Atka Bay's iceberg-laden landfast sea ice, Dronning Maud Land, East Antarctica (ANTSI Project) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.981151
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Published: 2025-10-27 • DOI registered: 2025-11-17
Abstract:
This dataset contains airborne radar data acquired using the AWI ultra-wideband microwave radar (UWBM) during the Antarctic season of 2022/23 (December 5th, 2022). The profiles extend across Atka Bay's snow-covered landfast sea ice in western Dronning Maud Land, East Antarctica. UWBM data was acquired to study snow drifts around icebergs and their radar signatures with a quad-polarized high-resolution radar system. 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):
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
Franke, Steven; Helm, Veit; Hames, Oceane; Haas, Christian (2025): Snow depth and snow-base backscatter intensity from AWI's airborne UWBM quad-polarized radar over Atka Bay (December 2022; ANTSI Project) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.987055
Helm, Veit; Franke, Steven; Haas, Christian; Hames, Oceane (2025): AWI airborne laserscanner (ALS) data products over Atka Bay landfast sea ice (East Antarctica) during the ANTSI campaign acquired on December 5, 2022 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.982610
Jutila, Arttu; King, Joshua; Paden, John D; Ricker, Robert; Hendricks, Stefan; Polashenski, Chris; Helm, Veit; Binder, Tobias; Haas, Christian (2022): High-Resolution Snow Depth on Arctic Sea Ice From Low-Altitude Airborne Microwave Radar Data. IEEE Transactions on Geoscience and Remote Sensing, 60, 1-16, https://doi.org/10.1109/TGRS.2021.3063756
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_02135: ANTSI - Antarctic Sea Ice: Thickness, Melt Ponding, and Ice Shelf Interaction
Coverage:
Median Latitude: -70.659097 * Median Longitude: -8.287374 * South-bound Latitude: -70.659202 * West-bound Longitude: -8.287413 * North-bound Latitude: -70.658992 * East-bound Longitude: -8.287334
Date/Time Start: 2022-12-05T09:07:24 * Date/Time End: 2022-12-05T15:44:23
Event(s):
P5_238_ANTSI_2022_2212051101 * Latitude Start: -70.658992 * Longitude Start: -8.287334 * Latitude End: -70.659202 * Longitude End: -8.287413 * Date/Time Start: 2022-12-05T09:07:24 * Date/Time End: 2022-12-05T15:44:23 * Campaign: P5-238_ANTSI_2022 (ANTSI, MEP, Kottas-Aero) * Basis: POLAR 5 * Method/Device: Aircraft (AC)
Comment:
AWI Flight Campaign: P5-238_ANTSI_2022
Project: ANTSI (ANTarctic Sea Ice and platelet ice survey)
Region: Atka Bay's landfast sea ice, Dronning Maud Land, East Antarctica
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Data Owner/Correspondence:
Christian Haas (Alfred Wegener Institut Bremerhaven, Germany), Contact: christian.haas@awi.de
Veit Helm (Alfred Wegener Institut Bremerhaven, Germany), Contact: veit.helm@awi.de
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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
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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)
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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
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Season | Season | Haas, Christian | |||
| 2 | Event label | Event | Haas, Christian | |||
| 3 | Profile ID | Profile ID | Haas, Christian | |||
| 4 | Radar product | Radar prod | Haas, Christian | |||
| 5 | netCDF file | netCDF | Haas, Christian | Airborne ultra-wideband microwave radar (UWBM) | qlook img01 | |
| 6 | netCDF file | netCDF | Haas, Christian | Airborne ultra-wideband microwave radar (UWBM) | qlook img02 | |
| 7 | netCDF file | netCDF | Haas, Christian | Airborne ultra-wideband microwave radar (UWBM) | qlook img03 | |
| 8 | netCDF file | netCDF | Haas, Christian | Airborne ultra-wideband microwave radar (UWBM) | qlook img04 | |
| 9 | GIS file | GIS | Haas, Christian | Airborne ultra-wideband microwave radar (UWBM) | KML Files, qlook | |
| 10 | Image | IMAGE | Haas, Christian | Airborne ultra-wideband microwave radar (UWBM) | Quicklooks, qlook img01 | |
| 11 | Image | IMAGE | Haas, Christian | Airborne ultra-wideband microwave radar (UWBM) | Quicklooks, qlook img02 | |
| 12 | Image | IMAGE | Haas, Christian | Airborne ultra-wideband microwave radar (UWBM) | Quicklooks, qlook img03 | |
| 13 | Image | IMAGE | Haas, Christian | 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:
452 data points