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  • 20201001; 20201003; 20201004; 20201005; 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 basal unit, below ice surface; Distance; Dome C; Dome C, Antarctica; Event label; Internal Reflection Horizon; LATITUDE; LDC-VHF; LDC-VHF_20201001; LDC-VHF_20201003; LDC-VHF_20201004; LDC-VHF_20201005; 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)
  • 79°N Glacier; 79NG-EC, HTRES; AC; Airborne laser scanning; Aircraft; Binary Object; Binary Object (File Size); File content; Greenland; Greenland ice sheet; ice thickness; Nioghalvfjerdsbraeen Glacier; Nioghalvfjerdsfjorden Glacier; P5_227_NG21_2021_2107300401; P5-227_NG21_2021; POLAR 5; Surface Elevation; Ultra-wideband radar (UWB), MCoRDS 5; UWB  (1)
  • 2020-2024  (2)
Document type
Keywords
Publisher
Years
  • 2020-2024  (2)
Year
  • 1
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    Unknown
    Ice surface elevation and ice thickness at 79°N Glacier, Greenland from airborne measurements in July 2021 (2023)
    PANGAEA
    Details
    Publication Date: 2024-05-17
    Description: We conducted airborne laser scanner and airborne radar measurements at the 79°N Glacier (Nioghalvfjerdsbræ) in Northeast Greenland in July 2021. Here, we provide ice surface elevation and ice thickness maps of the grounding line area based on 12 across-ice flow sections separated by 1 to 2.5 km. For ice thickness determination, we used AWI's Ultra-wideband (UWB, MCoRDS 5) airborne radar. The ice thickness was derived from the two-way travel time difference between the surface and the basal reflection, transformed to a thickness using a propagation velocity for the electromagnetic wave of 168.914 m μs⁻¹. The surface elevation and ice thickness were interpolated along flowlines of the ice and gridded to a regular grid with 25 m spacing. This dataset provides the latest ice geometry of the rapidly changing ice thickness at the grounding line of 79°N Glacier. The airborne data were acquired as part of AWI's 79NG-EC campaign with AWI's polar aircraft Polar5.
    Keywords: 79°N Glacier; 79NG-EC, HTRES; AC; Airborne laser scanning; Aircraft; Binary Object; Binary Object (File Size); File content; Greenland; Greenland ice sheet; ice thickness; Nioghalvfjerdsbraeen Glacier; Nioghalvfjerdsfjorden Glacier; P5_227_NG21_2021_2107300401; P5-227_NG21_2021; POLAR 5; Surface Elevation; Ultra-wideband radar (UWB), MCoRDS 5; UWB
    Type: Dataset
    Format: text/tab-separated-values, 2 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Basal unit at Little Dome C, Antarctica (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    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; 20201003; 20201004; 20201005; 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 basal unit, below ice surface; Distance; Dome C; Dome C, Antarctica; Event label; Internal Reflection Horizon; LATITUDE; LDC-VHF; LDC-VHF_20201001; LDC-VHF_20201003; LDC-VHF_20201004; LDC-VHF_20201005; 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, 160688 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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