Sigl, Michael; Severi, Mirko (2023): EDML ice-core volcanic sulfate concentration and deposition from 78.97 to 79.97 ka BP [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962785
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Abstract:
We present continuous records of ca. 2 cm resolved sulfate concentrations using a Continuous Flow Analysis (CFA) system (Röthlisberger et al., 2000; Severi et al., 2007; Wegner et al., 2015) from the EPICA Dronning Maud Land (EDML; 75.00°S, 00.07°E; 2892 m a.s.l.) ice core and estimated volcanic sulfate mass depositions for the time period 78.97 to 79.97 ka BP on the AICC2012 chronology (Veres et al., 2013) using a common volcanic marker in EDC dated 79.51 ka BP. The reconstruction is based on sulfate measurements employing high-resolution continuous flow analysis coupled to Fast Ion Chromatography. Volcanic eruptions are detected when annual sulfur concentrations exceeded the background concentrations + 4 times the median of the absolute deviation. Background concentrations are estimated using a 101-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.
Keyword(s):
Related to:
References:
Röthlisberger, Regine; Bigler, Matthias; Hutterli, Manuel A; Sommer, Stefan; Stauffer, Bernhard; Junghans, Hans G; Wagenbach, Dietmar (2000): Technique for Continuous High-Resolution Analysis of Trace Substances in Firn and Ice Cores. Environmental Science & Technology, 34(2), 338-342, https://doi.org/10.1021/es9907055
Severi, Mirko; Becagli, Silvia; Castellano, Emiliano; Morganti, Andrea; Traversi, Rita; Udisti, Roberto; Ruth, Urs; Fischer, Hubertus; Huybrechts, Philippe; Wolff, Eric William; Parrenin, Frédéric; Kaufmann, Patrik R; Lambert, Fabrice; Steffensen, Jørgen Peder (2007): Synchronisation of the EDML and EDC ice cores for the last 52 kyr by volcanic signature matching. Climate of the Past, 3, 367-374, https://doi.org/10.5194/cp-3-367-2007
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
Wegner, Anna; Fischer, Hubertus; Delmonte, Barbara; Petit, Jean Robert; Erhardt, Tobias; Ruth, Urs; Svensson, Anders M; Vinther, Bo Møllesøe; Miller, Heinrich (2015): The role of seasonality of mineral dust concentration and size on glacial/interglacial dust changes in the EPICA Dronning Maud Land ice core. Journal of Geophysical Research: Atmospheres, 120(19), 9916-9931, https://doi.org/10.1002/2015JD023608
Funding:
European Research Council (ERC), grant/award no. 820047: Timing of Holocene volcanic eruptions and their radiative aerosol forcing (THERA)
Coverage:
Latitude: -75.002500 * Longitude: 0.068400
Date/Time Start: 2001-01-10T00:00:00 * Date/Time End: 2006-01-17T00:00:00
Minimum DEPTH, ice/snow: 1942.390 m * Maximum DEPTH, ice/snow: 1956.161 m
Event(s):
EDML (EPICA Dronning Maud Land, DML28C01_00) * Latitude: -75.002500 * Longitude: 0.068400 * Date/Time Start: 2001-01-10T00:00:00 * Date/Time End: 2006-01-17T00:00:00 * Elevation: 2891.7 m * Recovery: 2774.15 m * Campaign: EPICA-Campaigns * Basis: Kohnen Station * Method/Device: EPICA drill (EDRILL) * Comment: Elevation is given with reference to WGS84
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 – AICC2012 Age, synchronized with EDC at 79.512 ka BP | |
| 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 | 101-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 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
3615 data points
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