Bay, Ryan C; Tosi, Delia: Laser dust logging of the EPICA Dome C borehole [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967134 (dataset in review)
Abstract:
We deployed a laser dust logger in the EPICA Dome C Ice Core (EDC) borehole in order to obtain a detailed record of dust and ash in order to study the particulate stratigraphy, volcanology, glaciology and climatology at the site. The Dust Logger device is described in detail elsewhere, most recently here: Journal of Glaciology, Volume 59, Issue 218 (2013) pp. 1117 - 1128, DOI: https://doi.org/10.3189/2013JoG13J068. Because the borehole fluid was turbid at the time of the log, the resolution of the instrument was much lower (>10 cm) than the nominal 2-3 mm thickness of the laser line. The instrument is lowered into the borehole and retrieved using a surface logging winch over the course of several hours. Data are acquired at the surface in real time using telemetry with the logger over the deployment cable. A small correction has been applied to compensate for the temperature dependence of the laser brightness.
Supplement to:
Ng, Jessica; Severinghaus, Jeffrey P; Bay, Ryan C; Tosi, Delia (in review): Evaluating marine dust records as templates for optical dating of Oldest Ice. https://doi.org/10.5194/egusphere-2023-1342
References:
The IceCube Collaboration (2013): South Pole glacial climate reconstruction from multi-borehole laser particulate stratigraphy. Journal of Glaciology, 59(218), 1117-1128, https://doi.org/10.3189/2013JoG13J068
Project(s):
Funding:
Fifth Framework Programme (FP5), grant/award no. EVK2-CT-2000-00077: European Project for Ice Coring in Antarctica
Fourth Framework Programme (FP4), grant/award no. ENV4980702: European Project for Ice Coring in Antarctica
Coverage:
Latitude: -75.100000 * Longitude: 123.350000
Date/Time Start: 1993-01-01T00:00:00 * Date/Time End: 2004-12-31T00:00:00
Minimum DEPTH, ice/snow: 1250.0019 m * Maximum DEPTH, ice/snow: 3215.9670 m
Event(s):
EDC (EPICA Dome C) * Latitude: -75.100000 * Longitude: 123.350000 * Date/Time Start: 1993-01-01T00:00:00 * Date/Time End: 2004-12-31T00:00:00 * Elevation: 3233.0 m * Recovery: 3300 m * Location: Dome C, Antarctica * Campaign: Dome C * Method/Device: Ice drill (ICEDRILL) * Comment: Drill site is 56 km from the site of a previous Dome C core that provided records extending into the last glacial period, and 560 km from the site of the Vostok cores. The completion of the Dome C core was delayed when the first drilling became stuck at 788 m in 1999 (EDC96).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, ice/snow | Depth ice/snow | m | Bay, Ryan C | Downhole logging | Geocode |
| 2 | Backscatter intensity signal | Backsc | arbitrary units | Bay, Ryan C | Dust logger |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
817079 data points
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