Mulvaney, Robert; Frezzotti, Massimo; Ritz, Catherine; Martín, Carlos; Rix, Julius; Chung, Ailsa (2023): Internal reflecting horizon 18 in the Dome C region of Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.963519, In: Mulvaney, R et al. (2023): Internal reflecting horizons in the Dome C region of Antarctica [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.963470
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Abstract:
This dataset consists of radar IRHs (internal reflecting horizons) which were traced across ice-penetrating radar surveys conducted between 2016 and 2018 over the Dome C region of the East Antarctic Plateau. The dataset is associated with the publication Chung et al. (2023). The data was collected during two radar surveys conducted in the Antarctic field seasons of 2016-17 and 2017-18 using the sledge-borne DEep LOoking Radio Echo Sounder (DELORES) from the British Antarctic Survey (BAS). The surveys covered two areas around Dome C which were identified as potential drill sites for the Beyond EPICA Oldest Ice drilling project - Little Dome C (LDC) and North Patch (NP). The LDC area is covered by a dense network of 116 radar transects, mostly organised as a grid, with denser data acquisition in areas of particular interest. At NP a grid of 21 radar transects were collected, covering an area of approximately 5×5 km^2. In this radar dataset, 20 IRHs and the ice-bed interface were manually traced, using the Petrel E&P Software Platform by Schlumberger. A single file for each IRH is provided in a .txt file, tab separated format with both two-way travel time and depth. The conversion done using c = 0.1685 m/us and firn correction of 10 m. The 20 IRHs are provided at 5 m along-track resolution.
Related to:
Bazin, Lucie; Landais, Amaëlle; Lemieux-Dudon, Bénédicte; Toyé Mahamadou Kele, H; Veres, Daniel; Parrenin, Frédéric; Martinerie, Patricia; Ritz, Catherine; Capron, Emilie; Lipenkov, Vladimir Ya; Loutre, Marie-France; Raynaud, Dominique; Vinther, Bo Møllesøe; Svensson, Anders M; Rasmussen, Sune Olander; Severi, Mirko; Blunier, Thomas; Leuenberger, Markus Christian; Fischer, Hubertus; Masson-Delmotte, Valerie; Chappellaz, Jérôme A; Wolff, Eric William (2013): An optimized multi-proxy, multi-site Antarctic ice and gas orbital chronology (AICC2012): 120-800 ka. Climate of the Past, 9(4), 1715-1731, https://doi.org/10.5194/cp-9-1715-2013
Chung, Ailsa; Parrenin, Frédéric; Steinhage, Daniel; Mulvaney, Robert; Martín, Carlos; Cavitte, Marie G P; Lilien, David A; Helm, Veit; Taylor, Drew; Gogineni, Prasad; Ritz, Catherine; Frezzotti, Massimo; O'Neill, Charles; Miller, Heinrich; Dahl-Jensen, Dorthe; Eisen, Olaf (2023): Stagnant ice and age modelling in the Dome C region, Antarctica. The Cryosphere, 17(8), 3461-3483, https://doi.org/10.5194/tc-17-3461-2023
Project(s):
Beyond EPICA - Oldest Ice (BE-OI)
Funding:
Horizon 2020 (H2020), grant/award no. 955750: Research and training network on understanding Deep icE corE Proxies to Infer past antarctiC climatE dynamics (DEEPICE)
Coverage:
Median Latitude: -75.295363 * Median Longitude: 122.688975 * South-bound Latitude: -75.484448 * West-bound Longitude: 122.160732 * North-bound Latitude: -75.026225 * East-bound Longitude: 123.792035
Date/Time Start: 2016-12-14T03:46:04 * Date/Time End: 2017-12-27T10:10:19
Event(s):
2H25E-H25B * Latitude Start: -75.356985 * Longitude Start: 122.209300 * Latitude End: -75.313292 * Longitude End: 122.423553 * Date/Time Start: 2016-12-22T02:26:58 * Date/Time End: 2016-12-22T02:57:00 * Location: Dome C, Antarctica * Campaign: DELORES_BAS(2016-17) (DEep LOoking Radio Echo Sounder) * Basis: Sampling on land * Method/Device: Sledge-borne DEep LOoking Radio Echo Sounder (DELORES)
2H30E-H30B * Latitude Start: -75.346908 * Longitude Start: 122.181042 * Latitude End: -75.304878 * Longitude End: 122.395882 * Date/Time Start: 2017-01-05T02:29:34 * Date/Time End: 2017-01-05T02:58:40 * Location: Dome C, Antarctica * Campaign: DELORES_BAS(2016-17) (DEep LOoking Radio Echo Sounder) * Basis: Sampling on land * Method/Device: Sledge-borne DEep LOoking Radio Echo Sounder (DELORES)
2V02E-RAID * Latitude Start: -75.274729 * Longitude Start: 122.285312 * Latitude End: -75.307435 * Longitude End: 122.293444 * Date/Time Start: 2017-01-06T09:38:48 * Date/Time End: 2017-01-06T09:53:55 * Location: Dome C, Antarctica * Campaign: DELORES_BAS(2017-18) (DEep LOoking Radio Echo Sounder) * Basis: Sampling on land * Method/Device: Sledge-borne DEep LOoking Radio Echo Sounder (DELORES)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Mulvaney, Robert | Line, name of radar transect | ||
| 2 | LONGITUDE | Longitude | Mulvaney, Robert | Geocode – EPSG: 4326 | ||
| 3 | LATITUDE | Latitude | Mulvaney, Robert | Geocode – EPSG: 4326 | ||
| 4 | Distance | Distance | km | Mulvaney, Robert | ||
| 5 | Depth of internal reflection horizon, below ice surface | Depth IRH | m | Mulvaney, Robert | Calculated | conversion from TWT using c = 0.1685 m/μs and firn correction of 10 m |
| 6 | Two-way traveltime | TWT | ns | Mulvaney, Robert | Sledge-borne DEep LOoking Radio Echo Sounder (DELORES) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
712239 data points
Download Data
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