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 10.1594/pangaea.960984
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Spreadsheet (NGRIP ice core sulfate 79.14 to 80.48 ka BP)
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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.
Item Type: |
Dataset |
|---|---|
Division/Institute: |
08 Faculty of Science > Physics Institute > Climate and Environmental Physics 04 Faculty of Medicine > Faculty Institutions > Office of the Dean, Faculty of Medicine 10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR) 08 Faculty of Science > Physics Institute |
UniBE Contributor: |
Sigl, Michael, Fischer, Hubertus |
Subjects: |
500 Science > 530 Physics 600 Technology > 610 Medicine & health 500 Science > 540 Chemistry 500 Science > 550 Earth sciences & geology |
Publisher: |
PANGAEA |
Funders: |
[18] European Research Council |
Projects: |
[1314] Timing of Holocene volcanic eruptions and their radiative aerosol forcing |
Language: |
English |
Submitter: |
Michael Sigl |
Date Deposited: |
21 Aug 2024 10:09 |
Last Modified: |
21 Aug 2024 10:09 |
Publisher DOI: |
10.1594/pangaea.960984 |
BORIS DOI: |
10.48350/199871 |
URI: |
https://boris.unibe.ch/id/eprint/199871 |
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