Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 University of Tübingen https://ror.org/03a1kwz48 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 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 Zuhr Alexandra alexandra.zuhr@uni-tuebingen.de 0000-0002-3861-365X University of Tübingen https://ror.org/03a1kwz48 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 2025 Internal Reflection Horizon (IRH) in western Dronning Maud Land, East Antarctica (IRH age = 91.0 ka) dataset https://doi.org/10.1594/PANGAEA.973290 2025-01-16T08:53:41 https://doi.org/10.1594/PANGAEA.973266 We present internal reflection horizons (IRHs) from airborne radar data in western Dronning Maud Land, East Antarctica. The IRHs were dated at the EDML ice core and IRH ages range between 4.8 and 91.0 ka before present. Radar data were collected with the AWI EMR and UWB radar systems in period between summer seasons 1996/97 and 2023/24. O2A Registry Metadata for radar system Ice Thickness Radar 150 MHz at current version other Alfred Wegener Institut Helmholtz Centre for Polar and Marine Research https://registry.o2a-data.de/items/6794 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 -2.1044207 40.3696289 -78.7893448 -73.0761032 6.888224416636942 -75.37556023936659 2008-01-16T12:09:47 2023-12-11T20:15:30 AntArchitecture Internal structure of ice sheets - SCAR Action Group https://scar.org/science/cross/antarchitecture SPP1158 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas https://gepris.dfg.de/gepris/projekt/5472008 Fachbereich Biologie, Universität Rostock http://www.uni-rostock.de https://ror.org/03zdwsf69 German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 506043073 DANGER DML - Deciphering the evolution of an East Antarctic drainage system over the last glacial cycle in western Dronning Maud Land https://gepris.dfg.de/gepris/projekt/506043073 German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 522419679 Is Dronning Maud Land mitigating sea level rise in the 21st century? Quantifying the anthropogenically induced change in snow accumulation in East Antarctica https://gepris.dfg.de/gepris/projekt/522419679 German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 5472008 Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas https://gepris.dfg.de/gepris/projekt/5472008 DoCo_2007/08_06 -69.027306 40.089062 2008-01-16T12:09:47 -69.431107 76.340141 2008-01-16T16:52:30 Antarctica, East DoCo_2007/08 Steinhage, Daniel 2007-09-26 2008-01-22 POLAR 5 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_204_ANT_GEA_2016_2017_1612030703 -70.824006 11.642864 2016-12-03T14:05:06 -70.823966 11.642672 2016-12-03T19:07:05 Antarctica P6-204_ANT_GEA_2016_2017 Geodynamic Evolution of East Antarctica, the Forster Magnetic Anomaly Eagles, Graeme 2016-09-23 2016-12-19 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_204_ANT_GEA_2016_2017_1612040901 -70.824005 11.642926 2016-12-04T14:05:21 -75.001097 0.05886 2016-12-04T16:24:19 Antarctica P6-204_ANT_GEA_2016_2017 Geodynamic Evolution of East Antarctica, the Forster Magnetic Anomaly Eagles, Graeme 2016-09-23 2016-12-19 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_204_ANT_GEA_2016_2017_1612051001 -75.001011 0.061936 2016-12-05T09:18:13 -70.823985 11.642832 2016-12-05T13:46:12 Antarctica P6-204_ANT_GEA_2016_2017 Geodynamic Evolution of East Antarctica, the Forster Magnetic Anomaly Eagles, Graeme 2016-09-23 2016-12-19 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_215_UWB_2018_1812220301 -71.955397 2.472649 2018-12-22T09:12:50 -75.001112 0.061624 2018-12-22T13:18:49 P6-215_UWB_2018 JuRaS, CHIRP Jansen, Daniela 2018-12-04 2019-01-07 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_215_UWB_2018_1812240401 -71.955404 2.472615 2018-12-24T10:11:58 -71.955424 2.472269 2018-12-24T13:41:55 P6-215_UWB_2018 JuRaS, CHIRP Jansen, Daniela 2018-12-04 2019-01-07 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_215_UWB_2018_1812260501 -71.955418 2.472312 2018-12-26T08:36:41 -71.95543 2.472169 2018-12-26T12:40:40 P6-215_UWB_2018 JuRaS, CHIRP Jansen, Daniela 2018-12-04 2019-01-07 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_215_UWB_2018_1812260602 -71.955432 2.472197 2018-12-26T14:45:10 -71.955405 2.472296 2018-12-26T19:13:10 P6-215_UWB_2018 JuRaS, CHIRP Jansen, Daniela 2018-12-04 2019-01-07 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_215_UWB_2018_1812270701 -71.955414 2.472301 2018-12-27T09:55:25 -75.001119 0.0588 2018-12-27T13:51:24 P6-215_UWB_2018 JuRaS, CHIRP Jansen, Daniela 2018-12-04 2019-01-07 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_215_UWB_2018_1812270802 -75.001133 0.061633 2018-12-27T15:06:49 -71.955501 2.472737 2018-12-27T17:48:48 P6-215_UWB_2018 JuRaS, CHIRP Jansen, Daniela 2018-12-04 2019-01-07 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_244_ANT_23_24_2311290701 Flight 7 -71.955823 2.474283 2023-11-29T09:28:44 -71.955822 2.474345 2023-11-29T14:03:45 P6-244_ANT_23_24 Steinhage, Daniel 2023-11-20 2023-12-16 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_244_ANT_23_24_2312111501 Flight 15 -71.955671 2.474806 2023-12-11T09:56:31 -75.001053 0.060699 2023-12-11T14:27:31 P6-244_ANT_23_24 Steinhage, Daniel 2023-11-20 2023-12-16 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC P6_244_ANT_23_24_2312111602 Flight 16 -75.001001 0.061876 2023-12-11T15:54:31 -71.955648 2.474805 2023-12-11T20:15:30 P6-244_ANT_23_24 Steinhage, Daniel 2023-11-20 2023-12-16 POLAR 6 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC WEGAS_2010/11_33 -75.000941 0.064135 2011-01-05T10:37:06 -83.335141 20.283475 2011-01-05T14:27:05 Antarctica, East WEGAS_2010/11 WEGAS, GEA, SRG Steinhage, Daniel 2010-12-18 2011-01-24 POLAR 5 https://doi.org/10.17815/jlsrf-2-153 Aircraft AC 2509800 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Season Season Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 Season Profile ID Profile ID Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 radar profile ID Profile ID Paradigm ID Paradigm ID Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 radar profile ID in the Paradigm system (AWI radar archive and tracing software) Paradigm ID Device type Device Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 one of the following radar products: EMR short-pulse, UWB narrowband or UWB wideband Device Trace Number Trace Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 Trace LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 Longitude LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 Latitude Internal reflection horizon, age IRH age ka age http://purl.obolibrary.org/obo/PATO_0000011 Time T http://dbpedia.org/resource/Time Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 IRH age [ka] Internal reflection horizon, age, uncertainty IRH age unc ka age http://purl.obolibrary.org/obo/PATO_0000011 Time T http://dbpedia.org/resource/Time Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 estimated uncertainty at the respective IRH depth IRH age unc [ka] Two-way traveltime to internal reflection horizon TWT IRH s Time T http://dbpedia.org/resource/Time Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 TWT IRH [s] Two-way traveltime to ice surface TWT surface s Time T http://dbpedia.org/resource/Time Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 TWT surface [s] Two-way traveltime to ice base TWT ice base s Time T http://dbpedia.org/resource/Time Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 TWT ice base [s] Depth of internal reflection horizon, below ice surface Depth IRH m depth http://purl.obolibrary.org/obo/PATO_0001595 Length L http://dbpedia.org/resource/Length Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 twt-to-depth conversion with a dielectric constant of 3.15 and a firn correction of 13 meters; see Franke et al., 2024 Depth IRH [m] Depth of internal reflection horizon, below ice surface, uncertainty Depth IRH unc m depth http://purl.obolibrary.org/obo/PATO_0001595 Length L http://dbpedia.org/resource/Length Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 uncertainty at each IRH depth, based on the radar system resolution, error of 1% in the dielectric permittivity and the uncertainty of the firn correction Depth IRH unc [m] Surface elevation Surf elev m Length L http://dbpedia.org/resource/Length Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 from the REMA product (Howat et al., 2019) Surf elev [m] Ice base depth Ice base depth m Length L http://dbpedia.org/resource/Length Franke Steven steven.franke@uni-tuebingen.de 0000-0001-8462-4379 below ice surface (twt-to-depth conversion with a dielectric constant of 3.15 and a firn correction of 13 meters; see Franke et al., 2024) Ice base depth [m] citable Airborne Radar Antarctic Ice Sheet AWI EMR AWI UWB Dronning Maud Land EDML Internal Reflection Horizon radio-echo sounding author104825 author26346 author27488 author36717 author72169 author78245 award2731 award3398 award5 basis4670 basis4987 campaign34137 campaign44363 campaign45675 campaign46349 campaign50331 event2829395 event2829734 event2880967 event2880968 event2880969 event2904009 event2904010 event2904011 event2904012 event2904013 event2904014 event3155866 event3155874 event3155875 funder20472 geocode1599 geocode1600 geocode1601 inst21275 inst32 inst480 license21 method10713 param190755 param26099 param515553 param515719 param515720 param529079 param534257 param534258 param534259 param536708 param536709 param54969 param78085 param87498 pi72169 project4201 project4965 ref122315 ref130079 term1073131 term1073135 term20856 term26743 term43863 term43975 term51812 term51910 term52317 term52462 term52913 term67303 term69042 term71527