Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Steinhage Daniel Daniel.Steinhage@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/daniel-steinhage.html Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Eisen Olaf olaf.eisen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/olaf-eisen.html 0000-0002-6380-962X Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Zuhr Alexandra alexandra.zuhr@uni-tuebingen.de 0000-0002-3861-365X University of Tübingen https://ror.org/03a1kwz48 Bodart Julien A 0000-0002-8237-0675 University of Bern UNIBE https://ror.org/02k7v4d05 Sutter Johannes sutter@climate.unibe.ch 0000-0002-3357-2633 University of Bern UNIBE https://ror.org/02k7v4d05 2026 ANT 2023/24: AWI airborne ultra-wideband radar data between Sør Rondane Mountains and the eastern DML ice divide (CHARISO Project) dataset https://doi.org/10.1594/PANGAEA.990049 2026-02-06T11:03:31 In the Antarctic austral summer season of 2023/24 AWI ultra-wideband (UWB) data was acquired across prominent ice-streams draining parts of the DML region as part of the CHARISO (Swiss (CH) Antarctic Research Initiative - ISOchrones in East Antarctic outflow regions) project, providing an opportunity to trace isochrones there and compare their pattern with modelled isochrones from ice-sheet modelling. The data were further used to extend the layering across existing AWI DML lines in the upper section near the ice divide, and over the main ice divide to link up specific isochrones with the EDML and Dome Fuji ice cores and were recorded in a frequency range between 180-210 MHz. The data are available for both data products (qlook: unfocused; standard: SAR focused) as netCDF files (including waveforms and metadata), KML files of the profile line locations, and quicklook images of the radargrams. Eisen Olaf olaf.eisen@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/olaf-eisen.html 0000-0002-6380-962X Steinhage Daniel Daniel.Steinhage@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/daniel-steinhage.html Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Binder Tobias tobias.binder@awi.de 0000-0002-9826-8835 Drews Reinhard reinhard.drews@uni-tuebingen.de 0000-0002-2328-294X Eagles Graeme graeme.eagles@awi.de 0000-0001-5325-0810 Humbert Angelika Angelika.Humbert@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/angelika-humbert.html 0000-0002-0244-8760 Jansen Daniela Daniela.Jansen@awi.de 0000-0002-4412-5820 Jokat Wilfried wilfried.jokat@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/wilfried-jokat.html 0000-0002-7793-5854 Lambrecht Astrid astrid.lambrecht@badw.de Mieth Matthias Riedel Sven Miller Heinrich Heinrich.Miller@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/heinrich-miller.html 0000-0003-1015-2828 2024 Collection of datasets from AWI's radio-echo sounding systems on ice sheets and glaciers dataset bibliography https://doi.org/10.1594/PANGAEA.972094 O2A Registry Metadata for radar system Ultra-wideband ice radar at current Version other Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research https://registry.o2a-data.de/items/6809 Bodart Julien A 0000-0002-8237-0675 Sutter Johannes sutter@climate.unibe.ch 0000-0002-3357-2633 2025 Dated radar Internal Reflection Horizons (IRHs) from Dronning Maud Land (East Antarctica) for ice-sheet model calibration (Version V1) dataset Zenodo https://doi.org/10.5281/ZENODO.17348976 23.298721 23.29891 -71.949031 -71.948998 23.298783750000002 -71.9490125 2023-12-03T07:05:13 2023-12-04T11:45:46 Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://doi.org/10.13039/501100003207 AWI_PA_02145 P6-244_ANT_23_24, CHARISO, P6-255_ANT_2024_2025 P6_244_ANT_23_24_2312031001 Flight 10 -71.949031 23.298777 2023-12-03T07:05:13 -71.948998 23.29891 2023-12-03T11:35:12 P6-244_ANT_23_24 P6-244_ANT_23_24 2023-11-20T00:00:00 2023-11-20 2023-12-16T00:00:00 2023-12-16 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Steinhage, Daniel Steinhage, Daniel POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_244_ANT_23_24_2312041201 Flight 12 -71.949011 23.298721 2023-12-04T07:09:47 -71.94901 23.298727 2023-12-04T11:45:46 P6-244_ANT_23_24 P6-244_ANT_23_24 2023-11-20T00:00:00 2023-11-20 2023-12-16T00:00:00 2023-12-16 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Steinhage, Daniel Steinhage, Daniel POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC 350 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Project: CHARISO (Isochrones in East Antarctic outflow regions; Swiss Antarctic Research Initiative) Region: Antarctica, Dronning Maud Land, South of Sør Rondane Mountains Owner / PI: Olaf Eisen (AWI) CHARISO PI: Johannes Sutter (Uni Bern - johannes.sutter@unibe.ch) Email address of the provider: olaf.eisen@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. Season Season Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Season Event label Event Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Event Profile ID Profile ID Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Profile ID Instrument Instrument Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Instrument Radar product Radar prod Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Radar prod netCDF file netCDF https://doi.org/10.5065/D6H70CW6 Ultra-wideband radar (UWB), MCoRDS 5 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 standard netCDF (standard) netCDF file (File Size) netCDF (Size) Bytes https://doi.org/10.5065/D6H70CW6 Ultra-wideband radar (UWB), MCoRDS 5 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 standard netCDF (Size) [Bytes] (standard) netCDF file netCDF https://doi.org/10.5065/D6H70CW6 Ultra-wideband radar (UWB), MCoRDS 5 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 qlook netCDF (qlook) GIS file GIS Ultra-wideband radar (UWB), MCoRDS 5 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 KML Files, standard GIS (KML Files, standard) GIS file GIS Ultra-wideband radar (UWB), MCoRDS 5 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 KML Files, qlook GIS (KML Files, qlook) Image IMAGE Ultra-wideband radar (UWB), MCoRDS 5 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Quicklook, standard IMAGE (Quicklook, standard) Image IMAGE Ultra-wideband radar (UWB), MCoRDS 5 Helm Veit Veit.Helm@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/veit-helm.html 0000-0001-7788-9328 Quicklook, qlook IMAGE (Quicklook, qlook) CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable AWI UWB Dronning Maud Land East Antarctica ice divide Ice Sheet Internal Reflection Horizon Polar 6 radio-echo sounding Sør Rondane Mountains author104825 author107101 author26346 author27488 author30625 author33194 author36179 author36180 author36716 author36717 author40917 author53726 author56843 author62 author68961 author699 author72169 author78245 award3904 basis4987 campaign3382924 campaign50331 curlevel30 event3155869 event3155871 funder32 geocode1599 geocode1600 geocode1601 inst20077 inst21275 inst32 license21 method10713 method14390 param150836 param16118 param513666 param516439 param541163 param54969 param87498 pi36717 ref122315 ref137720 refds972094 term48502 term50638 term51493 term51910 term51911 term52317 term52462 term69042 term75801