Internal reflecting horizon 9 at Little Dome C, Antarctica


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.

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Creator Chung, Ailsa (ORCID: 0000-0003-3822-845X); Parrenin, Frédéric ORCID logo; Steinhage, Daniel; Mulvaney, Rob; Martín, Carlos; Cavitte, Marie G P ORCID logo; Lilien, David A ORCID logo; Helm, Veit ORCID logo; Taylor, Drew ORCID logo; Gogineni, Prasad; Ritz, Catherine ORCID logo; Frezzotti, Massimo ORCID logo; O'Neill, Charles; Miller, Heinrich ORCID logo; Dahl-Jensen, Dorthe ORCID logo; Eisen, Olaf (ORCID: 0000-0002-6380-962X)
Publisher PANGAEA
Publication Year 2023
Funding Reference Horizon 2020 Crossref Funder ID 730258 doi:10.3030/730258 Beyond EPICA - Oldest Ice
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 208912 data points
Discipline Earth System Research
Spatial Coverage (122.384W, -75.348S, 123.359E, -75.102N); Dome C, Antarctica
Temporal Coverage Begin 2019-11-30T08:28:21Z
Temporal Coverage End 2019-12-04T07:53:33Z