Maffezzoli, Niccolò; Risebrobakken, Bjørg; Miles, Martin W; Vallelonga, Paul T; Berben, Sarah M P; Scoto, Federico; Edwards, Ross; Kjær, Helle Astrid; Sadatzki, Henrik; Saiz-Lopez, Alfonso; Turetta, Clara; Barbante, Carlo; Vinther, Bo Møllesøe; Spolaor, Andrea (2022): GISP2 ice core Holocene sodium concentration record [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.940684
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Abstract:
This repository contains GISP2 ice core (Summit, Greenland) sodium concentrations of the upper ca. 1600 meter section of the core, corresponding to the ca. 11,000 years of the Holocene. The time series is smoothed using a 100-yr Gaussian kernel. The raw data are from O'Brien et al., 1995: Complexity of Holocene Climate as Reconstructed from a Greenland Ice Core.
Related to:
Maffezzoli, Niccolò; Risebrobakken, Bjørg; Miles, Martin W; Vallelonga, Paul T; Berben, Sarah M P; Scoto, Federico; Edwards, Ross; Kjær, Helle Astrid; Sadatzki, Henrik; Saiz-Lopez, Alfonso; Turetta, Clara; Barbante, Carlo; Vinther, Bo Møllesøe; Spolaor, Andrea (2021): Sea ice in the northern North Atlantic through the Holocene: Evidence from ice cores and marine sediment records. Quaternary Science Reviews, 273, 107249, https://doi.org/10.1016/j.quascirev.2021.107249
Maffezzoli, Niccolò; Risebrobakken, Bjørg; Miles, Martin W; Vallelonga, Paul T; Berben, Sarah M P; Scoto, Federico; Edwards, Ross; Kjær, Helle Astrid; Sadatzki, Henrik; Saiz-Lopez, Alfonso; Turetta, Clara; Barbante, Carlo; Vinther, Bo Møllesøe; Spolaor, Andrea (2022): RECAP ice core Holocene record of δ¹⁸O. PANGAEA, https://doi.org/10.1594/PANGAEA.940687
Maffezzoli, Niccolò; Risebrobakken, Bjørg; Miles, Martin W; Vallelonga, Paul T; Berben, Sarah M P; Scoto, Federico; Edwards, Ross; Kjær, Helle Astrid; Sadatzki, Henrik; Saiz-Lopez, Alfonso; Turetta, Clara; Barbante, Carlo; Vinther, Bo Møllesøe; Spolaor, Andrea (2022): RECAP ice core Holocene records of Br, Na, nssBr, Brenr, I, Ca, Cl, Mg. PANGAEA, https://doi.org/10.1594/PANGAEA.940686
Maffezzoli, Niccolò; Vallelonga, Paul T; Edwards, Ross; Saiz-Lopez, Alfonso; Turetta, Clara; Kjær, Helle Astrid; Barbante, Carlo; Vinther, Bo Møllesøe; Spolaor, Andrea (2020): Holocene (Br, Na in 100-yr resolution) and Glacial (Br, Cl, Na, ssNa, Ca, Mg in 55-cm resolution) ICPMS concentrations of RECAP ice core. PANGAEA, https://doi.org/10.1594/PANGAEA.911836
Further details:
O'Brien, S M; Mayewski, Paul Andrew; Meeker, L D; Meese, D A; Twickler, Mark S; Whitlow, Sallie I (1995): Complexity of Holocene climate as reconstructed from a Greenland ice core. Science, 270(5244), 1962-1964, https://doi.org/10.1126/science.270.5244.1962
Project(s):
Funding:
European Research Council (ERC), grant/award no. 610055: Arctic Sea Ice and Greenland Ice Sheet Sensitivity
Coverage:
Latitude: 72.588000 * Longitude: -38.457000
Minimum Elevation: 0.0 m * Maximum Elevation: 3203.0 m
Event(s):
GISP2-D * Latitude: 72.588000 * Longitude: -38.457000 * Elevation Start: 3203.0 m * Elevation End: 0.0 m * Campaign: GISP * Basis: Sampling/drilling ice * Method/Device: Drilling/drill rig (DRILL) * Comment: The length of the 3-km borehole at the GISP2 site was measured by two completely independent geophysical logging systems, the University of Copenhagen system (UCPH) and the U.S. Geological Survey's temperature system (USGS). Both systems utilized steel logging cables. The depth calibration factor for the UCPH system was determined from the measured length of the GRIP ice core while the USGS system was calibrated using a fiberglass tape measure with a low coefficient of thermal expansion. The accuracy of the depth measurements for both systems is estimated to be 2-3 m at a depth of 3 km. Inclination/azimuth measurements from the UCPH logger have been used to calculate the true vertical depth of the borehole from the measured total slant length. UCPH/true vertical depth (m):3047.8 slant length (m):3056.5 USGS/true vertical depth (m):3047.9, slant length (m):3056.6
Comment:
Note: smoothed curves are calculated using a 100-yr gaussian kernel.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Age, relative, number of years | Age | a | Maffezzoli, Niccolò | Age of the GISP ice sample expressed in years before 2000, b2k. | |
| 2 | Sodium | Na+ | µg/kg | Maffezzoli, Niccolò | smoothed | Data from O'Brien et al. (1995). |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
9628 data points
Download Data
View dataset as HTML (shows only first 2000 rows)