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  • 20201001; 20201002; 20201003; 20201004; 20201005; 20201006; 20201007; 20201008; 20201009; 20201010; 20201011; 20201012; Antarctica; ANT-Land_2019_BE-OI; AWI Antarctic Land Expedition; BE-OI; Beyond EPICA - Oldest Ice; Calculated; Depth of bedrock, below ice surface; Distance; Dome C; Dome C, Antarctica; Event label; Internal Reflection Horizon; LATITUDE; LDC-VHF; LDC-VHF_20201001; LDC-VHF_20201002; LDC-VHF_20201003; LDC-VHF_20201004; LDC-VHF_20201005; LDC-VHF_20201006; LDC-VHF_20201007; LDC-VHF_20201008; LDC-VHF_20201009; LDC-VHF_20201010; LDC-VHF_20201011; LDC-VHF_20201012; Line; Little Dome C - Very High Frequency multichannel coherent radar depth sounder; LONGITUDE; radio echo sounding; Two-way traveltime  (1)
  • BE-OI; Beyond EPICA - Oldest Ice  (1)
  • PANGAEA  (2)
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Keywords
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  • PANGAEA  (2)
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  • 1
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    Unknown
    Bedrock at Little Dome C, Antarctica (2023)
    PANGAEA
    Details
    Publication Date: 2023-12-20
    Description: This dataset of radio-echo sounding internal reflecting horizons (IRH) which were traced across the radar surveys conducted in the 2019/20 Antarctic summer season at Little Come C, in the Dome C region of the East Antarctic Plateau. The data set is associated to publication: Chung, A., et al. (2023). The data were collected during a radar survey conducted in the Antarctic field seasons of 2019-20 using the Little Dome C - Very High Frequency (LDC-VHF) multichannel coherent radar depth sounder developed through a collaboration of The University of Alabama (UA), the University of Copenhagen (CPH) and the Alfred Wegener Institute (AWI). The survey covered Patches A and B of Little Dome C (Lilien et al., 2021), in order to select the exact drill site for the Beyond EPICA Oldest Ice drilling project. The datasets consists of 12 transects systematically covering Patches A and B with parallel lines, over an area of approximately 5×8 km^2. The dataset contains 19 IRHs, the basal unit horizon and the ice-bed interface which were manually traced by Ailsa Chung, using the seismic environment of the Echos software from Paradigm Geophysical. A single file for each IRH is provided in a text file, tab separated format with both depth and two-way travel time. The conversion to depth done using c = 0.1685 m/μs and firn correction of 10 m. The IRHs are provided at approximately 3.5 m spacial resolution.
    Keywords: 20201001; 20201002; 20201003; 20201004; 20201005; 20201006; 20201007; 20201008; 20201009; 20201010; 20201011; 20201012; Antarctica; ANT-Land_2019_BE-OI; AWI Antarctic Land Expedition; BE-OI; Beyond EPICA - Oldest Ice; Calculated; Depth of bedrock, below ice surface; Distance; Dome C; Dome C, Antarctica; Event label; Internal Reflection Horizon; LATITUDE; LDC-VHF; LDC-VHF_20201001; LDC-VHF_20201002; LDC-VHF_20201003; LDC-VHF_20201004; LDC-VHF_20201005; LDC-VHF_20201006; LDC-VHF_20201007; LDC-VHF_20201008; LDC-VHF_20201009; LDC-VHF_20201010; LDC-VHF_20201011; LDC-VHF_20201012; Line; Little Dome C - Very High Frequency multichannel coherent radar depth sounder; LONGITUDE; radio echo sounding; Two-way traveltime
    Type: Dataset
    Format: text/tab-separated-values, 208972 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Modelled age-depth profiles of two ice core drill sites on Little Dome C, Antarctica (2024)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: We used a 1D numerical model constrained by radar horizons to find the age-depth profiles at two locations on Little Dome C (LDC), Antarctica - the European Beyond EPICA - Oldest Ice project drill site (BELDC; 75.29917 °S, 122.44516 °E) and the Australian Million Year Ice Core project drill site (MYIC; 75.34132 °S, 122.52059 °E). Further details on the model can be found in the associated publication (Chung et al., 2023; The Cryosphere). The model was constrained by two different sets of radar horizons. 1. The radar survey conducted over the Dome C region conducted by the British Antarctic Survey over the 2016-17 and 2017-18 Antarctic field seasons using the sledge-borne DEep LOoking Radio Echo Sounder (DELORES; Mulvaney et al., 2023). 2. The radar survey conducted during the 2019-20 Antarctic field season in a collaboration between the University of Alabama (UA), the University of Copenhagen (CPH) and the Alfred Wegener Institute (AWI), using the Little Dome C-Very High Frequency radar system (LDC-VHF; Chung et al., 2023; PANGAEA). Applying the 1D model to the two radar datasets at the two ice core location result in the four predicted age-depth profiles that we present here: BELDC_DELORES, BELDC_LDC-VHF, MYIC_DELORES and MYIC_LDC-VHF. The age-depth profiles, extend to the deepest point where modelled age density 〈 20 ka/m - the threshold for which a paleoclimatic signal can reasonably be extracted.
    Keywords: BE-OI; Beyond EPICA - Oldest Ice
    Type: Dataset
    Format: application/zip, 4 datasets
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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