Sulfur isotopes of sulfate measurements from a Greenland ice core (1850-2006)
Anthropogenic sulfate aerosols are estimated to have offset sixty percent of greenhouse-gas-induced warming in the Arctic, a region warming four times faster than the rest of the world. However, sulfate radiative forcing estimates remain uncertain because the relative contributions from anthropogeni...
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Arctic Data Center
2023
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Online Access: | https://doi.org/10.18739/A26T0GX7K |
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dataone:doi:10.18739/A26T0GX7K 2024-06-03T18:46:38+00:00 Sulfur isotopes of sulfate measurements from a Greenland ice core (1850-2006) Ursula Jongebloed Becky Alexander Jihong Cole-Dai Andrew Schauer Carleigh Larrick Shohei Hattori Sara Salimi Shana Edouard Lei Geng Summit, Greenland ENVELOPE(-38.62,-38.62,72.58,72.58) BEGINDATE: 1850-01-01T00:00:00Z ENDDATE: 2006-01-01T00:00:00Z 2023-05-11T00:00:00Z https://doi.org/10.18739/A26T0GX7K unknown Arctic Data Center ice core sulfur sulfate isotope anthropogenic pollution Dataset 2023 dataone:urn:node:ARCTIC https://doi.org/10.18739/A26T0GX7K 2024-06-03T18:19:30Z Anthropogenic sulfate aerosols are estimated to have offset sixty percent of greenhouse-gas-induced warming in the Arctic, a region warming four times faster than the rest of the world. However, sulfate radiative forcing estimates remain uncertain because the relative contributions from anthropogenic versus natural sources to total sulfate aerosols are unknown. Here we measure sulfur isotopes of sulfate in a Summit, Greenland ice core from 1850 to 2006 CE to quantify the contribution of anthropogenic sulfur emissions to ice core sulfate. We use a Keeling Plot to determine the anthropogenic sulfur isotopic signature (δ34Santhro = +2.9 0.3 ‰), and compare this result to a compilation of sulfur isotope measurements of oil and coal. Using δ34Santhro, we quantify anthropogenic sulfate concentration separated from natural sulfate. Anthropogenic sulfate concentration increases to 68 ± 7% of non-sea-salt sulfate (65.1 ± 20.2 µg kg-1) during peak anthropogenic emissions from 1960 to 1990 and decreases to 45 ± 11% of non-sea-salt sulfate (25.4 ± 12.8 µg kg-1) from 1996 to 2006. These observations provide the first long-term record of anthropogenic sulfate distinguished from natural sources (e.g., volcanoes, dimethyl sulfide), and can be used to evaluate model characterization of anthropogenic sulfate aerosol fraction and radiative forcing over the industrial era. These data include sulfur isotopes of sulfate measurements from a Greenland ice core from 1850-2006. The preindustrial dataset (1200-1850) is uploaded to the Arctic data center here: doi:10.18739/A2N873162 Dataset Arctic Greenland Greenland ice core ice core Arctic Data Center (via DataONE) Arctic Greenland ENVELOPE(-38.62,-38.62,72.58,72.58) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
ice core sulfur sulfate isotope anthropogenic pollution |
spellingShingle |
ice core sulfur sulfate isotope anthropogenic pollution Ursula Jongebloed Becky Alexander Jihong Cole-Dai Andrew Schauer Carleigh Larrick Shohei Hattori Sara Salimi Shana Edouard Lei Geng Sulfur isotopes of sulfate measurements from a Greenland ice core (1850-2006) |
topic_facet |
ice core sulfur sulfate isotope anthropogenic pollution |
description |
Anthropogenic sulfate aerosols are estimated to have offset sixty percent of greenhouse-gas-induced warming in the Arctic, a region warming four times faster than the rest of the world. However, sulfate radiative forcing estimates remain uncertain because the relative contributions from anthropogenic versus natural sources to total sulfate aerosols are unknown. Here we measure sulfur isotopes of sulfate in a Summit, Greenland ice core from 1850 to 2006 CE to quantify the contribution of anthropogenic sulfur emissions to ice core sulfate. We use a Keeling Plot to determine the anthropogenic sulfur isotopic signature (δ34Santhro = +2.9 0.3 ‰), and compare this result to a compilation of sulfur isotope measurements of oil and coal. Using δ34Santhro, we quantify anthropogenic sulfate concentration separated from natural sulfate. Anthropogenic sulfate concentration increases to 68 ± 7% of non-sea-salt sulfate (65.1 ± 20.2 µg kg-1) during peak anthropogenic emissions from 1960 to 1990 and decreases to 45 ± 11% of non-sea-salt sulfate (25.4 ± 12.8 µg kg-1) from 1996 to 2006. These observations provide the first long-term record of anthropogenic sulfate distinguished from natural sources (e.g., volcanoes, dimethyl sulfide), and can be used to evaluate model characterization of anthropogenic sulfate aerosol fraction and radiative forcing over the industrial era. These data include sulfur isotopes of sulfate measurements from a Greenland ice core from 1850-2006. The preindustrial dataset (1200-1850) is uploaded to the Arctic data center here: doi:10.18739/A2N873162 |
format |
Dataset |
author |
Ursula Jongebloed Becky Alexander Jihong Cole-Dai Andrew Schauer Carleigh Larrick Shohei Hattori Sara Salimi Shana Edouard Lei Geng |
author_facet |
Ursula Jongebloed Becky Alexander Jihong Cole-Dai Andrew Schauer Carleigh Larrick Shohei Hattori Sara Salimi Shana Edouard Lei Geng |
author_sort |
Ursula Jongebloed |
title |
Sulfur isotopes of sulfate measurements from a Greenland ice core (1850-2006) |
title_short |
Sulfur isotopes of sulfate measurements from a Greenland ice core (1850-2006) |
title_full |
Sulfur isotopes of sulfate measurements from a Greenland ice core (1850-2006) |
title_fullStr |
Sulfur isotopes of sulfate measurements from a Greenland ice core (1850-2006) |
title_full_unstemmed |
Sulfur isotopes of sulfate measurements from a Greenland ice core (1850-2006) |
title_sort |
sulfur isotopes of sulfate measurements from a greenland ice core (1850-2006) |
publisher |
Arctic Data Center |
publishDate |
2023 |
url |
https://doi.org/10.18739/A26T0GX7K |
op_coverage |
Summit, Greenland ENVELOPE(-38.62,-38.62,72.58,72.58) BEGINDATE: 1850-01-01T00:00:00Z ENDDATE: 2006-01-01T00:00:00Z |
long_lat |
ENVELOPE(-38.62,-38.62,72.58,72.58) |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Greenland ice core ice core |
genre_facet |
Arctic Greenland Greenland ice core ice core |
op_doi |
https://doi.org/10.18739/A26T0GX7K |
_version_ |
1800868935694811136 |