Sigl, Michael; Bigler, Matthias; Fischer, Hubertus (2023): NGRIP ice-core volcanic sulfate concentration and deposition from 79.14 to 80.48 ka BP [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.960984
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Abstract:
We present continuous records of 1 cm resolved sulfate concentrations, insoluble particle number and mass concentration, and liquid conductivity using a Continuous Flow Analysis (CFA) system (Bigler et al., 2002; Bigler et al., 2011; Erhardt et al., 2022) from the North Greenland Ice Core Project (NGRIP; 75.10°N, 42.33°W; 2941 m a.s.l.) and estimated volcanic sulfate mass depositions for the time period 79.14 and 80.48 ka BP on the GICC05modelext chronology, transferred to the AICC2012 chronology (Veres et al., 2013; Seierstad et al., 2014) using a common volcanic marker in EPICA Dome C ice core dated 79.51 ka BP. The reconstruction is based on sulfate measurements employing high-resolution continuous flow analysis. Volcanic eruptions are detected when annual sulfate concentrations exceeded the background concentrations + 4 times the median of the absolute deviation. Background concentrations are estimated using a 181-point running median. Volcanic sulfate deposition rates are calculated by subtracting the background concentrations from total sulfate concentrations using thinning corrected estimates of mean ice accumulation rates at the ice-core site.
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References:
Bigler, Matthias; Svensson, Anders M; Kettner, E; Vallelonga, Paul T; Nielsen, Maibritt; Steffensen, Jørgen Peder (2011): Optimization of High-Resolution Continuous Flow Analysis for Transient Climate Signals in Ice Cores. Environmental Science & Technology, 45(10), 4483-4489, https://doi.org/10.1021/es200118j
Bigler, Matthias; Wagenbach, Dietmar; Fischer, Hubertus; Kipfstuhl, Sepp; Miller, Heinrich; Sommer, Stefan; Stauffer, Bernhard (2002): Sulphate record from a northeast Greenland ice core over the last 1200 years based on continuous flow analysis. Annals of Glaciology, 35, 250-256, https://doi.org/10.3189/172756402781817158
Erhardt, Tobias; Bigler, Matthias; Federer, Urs; Gfeller, Gideon; Leuenberger, Daiana; Stowasser, Olivia; Röthlisberger, Regine; Schüpbach, Simon; Ruth, Urs; Twarloh, Birthe; Wegner, Anna; Goto-Azuma, Kumiko; Kuramoto, Takayuki; Kjær, Helle Astrid; Vallelonga, Paul T; Siggaard-Andersen, Marie-Louise; Hansson, Margareta E; Benton, Ailsa K; Fleet, Louise G; Mulvaney, Rob; Thomas, Elizabeth R; Abram, Nerilie J; Stocker, Thomas F; Fischer, Hubertus (2022): High-resolution aerosol concentration data from the Greenland NorthGRIP and NEEM deep ice cores. Earth System Science Data, 14(3), 1215-1231, https://doi.org/10.5194/essd-14-1215-2022
Seierstad, Inger K; Abbott, Peter M; Bigler, Matthias; Blunier, Thomas; Bourne, Anna J; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Johnsen, Sigfús Jóhann; Pedersen, Desirée S; Popp, Trevor J; Rasmussen, Sune Olander; Severinghaus, Jeffrey P; Svensson, Anders M; Vinther, Bo Møllesøe (2014): Consistently dated records from the Greenland GRIP, GISP2 and NGRIP ice cores for the past 104 ka reveal regional millennial-scale δ18O gradients with possible Heinrich event imprint. Quaternary Science Reviews, 106, 29-46, https://doi.org/10.1016/j.quascirev.2014.10.032
Veres, Daniel; Bazin, Lucie; Landais, Amaëlle; Toyé Mahamadou Kele, H; Lemieux-Dudon, Bénédicte; Parrenin, Frédéric; Martinerie, Patricia; Blayo, Eric; Blunier, Thomas; Capron, Emilie; Chappellaz, Jérôme A; Rasmussen, Sune Olander; Severi, Mirko; Svensson, Anders M; Vinther, Bo Møllesøe; Wolff, Eric William (2013): The Antarctic ice core chronology (AICC2012): an optimized multi-parameter and multi-site dating approach for the last 120 thousand years. Climate of the Past, 9(4), 1733-1748, https://doi.org/10.5194/cp-9-1733-2013
Funding:
European Research Council (ERC), grant/award no. 820047: Timing of Holocene volcanic eruptions and their radiative aerosol forcing (THERA)
Coverage:
Latitude: 75.100000 * Longitude: -42.320000
Date/Time Start: 1996-07-01T00:00:00 * Date/Time End: 1996-07-01T00:00:00
Minimum DEPTH, ice/snow: 2608.51 m * Maximum DEPTH, ice/snow: 2625.07 m
Event(s):
NGRIP (NorthGRIP) * Latitude: 75.100000 * Longitude: -42.320000 * Date/Time: 1996-07-01T00:00:00 * Elevation: 2917.0 m * Location: Greenland * Campaign: NGRIP * Basis: Sampling/drilling ice * Method/Device: Ice drill (ICEDRILL)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, ice/snow | Depth ice/snow | m | Sigl, Michael | Geocode | |
| 2 | AGE | Age | ka BP | Sigl, Michael | Geocode – GICC05modelext Age | |
| 3 | AGE | Age | ka BP | Sigl, Michael | Geocode – AICC2012 Age | |
| 4 | Accumulation rate in ice equivalent per year | Acc rate ice per year | m/a | Sigl, Michael | Corrected | thinning corrected |
| 5 | Sulfate | [SO4]2- | µg/kg | Sigl, Michael | Continuous Flow Analysis (CFA) | |
| 6 | Sulfate, background | Bkg [SO4]2- | µg/kg | Sigl, Michael | Calculated, running median | 181-point reduced running median |
| 7 | Sulfate, volcanic | Volc [SO4]2- volc | µg/kg | Sigl, Michael | Calculated | |
| 8 | Deposition of sulfate, volcanic | Volc [SO4]2- depos | kg/km2 | Sigl, Michael | Calculated | |
| 9 | Deposition of sulfate, volcanic, cumulative | Volc [SO4]2- depos cum | kg/m2 | Sigl, Michael | Calculated | provided for the start of volcanic sulfate deposition |
| 10 | Conductivity, electrolytic | EC | µS/cm | Sigl, Michael | Continuous Flow Analysis (CFA) | |
| 11 | Dust, insoluble | Dust insol | µg/kg | Sigl, Michael | Continuous Flow Analysis (CFA) | Insoluble particle mass concentration |
| 12 | Dust, insoluble | Dust insol | #/ml | Sigl, Michael | Continuous Flow Analysis (CFA) | Insoluble particle number concentration |
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:
12921 data points
Download Data
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