D4i Greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 CE)
The D4 ice core was recovered in 2003 from a high elevation, cold site in the dry snow region of the Greenland ice sheet (71.4°N, 43.9°W, 2730 m asl, 41 cm water equivalent per year annual accumulation rate). Initial collection and previous analyses of the core have been reported earlier (e.g., McCo...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.960977 2024-09-15T17:51:51+00:00 D4i Greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 CE) Sigl, Michael McConnell, Joseph R LATITUDE: 71.400000 * LONGITUDE: -43.900000 * MINIMUM DEPTH, ice/snow: 66.270 m * MAXIMUM DEPTH, ice/snow: 145.418 m 2023 text/tab-separated-values, 9868 data points https://doi.pangaea.de/10.1594/PANGAEA.960977 https://doi.org/10.1594/PANGAEA.960977 en eng PANGAEA Fang, Shih-Wei; Sigl, Michael; Toohey, Matthew; Jungclaus, Johann H; Zanchettin, Davide; Timmreck, Claudia (in review): The role of small to moderate volcanic eruptions in the early 19th century climate. Sigl, Michael; McConnell, Joseph R; Toohey, Matthew (2023): Volcanic stratospheric sulfur injection between 1733 and 1895 CE based on the eVolv2k-plus-D4i ice-core eruption catalogue [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.960975 Bowen, H J M (1979): Environmental chemistry of the elements. Academic Press: London, New York McConnell, Joseph R; Edwards, Ross; Kok, Gregory L; Flanner, Mark G; Zender, Charles S; Saltzman, Eric S; Banta, J Ryan; Pasteris, Daniel R; Carter, Megan M; Kahl, Jonathan D W (2007): 20th-Century Industrial Black Carbon Emissions Altered Arctic Climate Forcing. Science, 317(5843), 1381-1384, https://doi.org/10.1126/science.1144856 https://doi.pangaea.de/10.1594/PANGAEA.960977 https://doi.org/10.1594/PANGAEA.960977 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess aerosol Age D4 Deposition of sulfate volcanic DEPTH ice/snow Greenland Ice core ICEDRILL Ice drill Laki sulfate Sulfur non-sea-salt background excess Tambora volcanic eruption volcanism dataset 2023 ftpangaea https://doi.org/10.1594/PANGAEA.96097710.1594/PANGAEA.96097510.1126/science.1144856 2024-08-21T00:02:27Z The D4 ice core was recovered in 2003 from a high elevation, cold site in the dry snow region of the Greenland ice sheet (71.4°N, 43.9°W, 2730 m asl, 41 cm water equivalent per year annual accumulation rate). Initial collection and previous analyses of the core have been reported earlier (e.g., McConnell et al., 2007). New longitudinal samples of ~32 by ~32 mm were cut (D4i) from contiguous sections of the remaining D4 core archived in a commercial storage facility in Reno. The samples from near and below the pore close-off depth (66-145 m depth; dating 1733-1900 CE) were analyzed continuously using a state-of-the-art ice core analytical system. https://icecores.org/inventory/d4 . Mean monthly D4i non-sea-salt sulfur concentrations corrected for sea-salt sulfur contribution based on [Na], assuming a S/Na mass ratio of seawater of 0.084 [Bowen, 1979]. Estimated mean monthly D4i median pre-industrial (1733-1875 CE) sulfur background concentrations after excluding volcanic events identified as monthly values exceeding the median concentrations plus two times the interquartile range (Q3 minus Q1). D4i Excess-sulfur concentrations defined as non-sea-salt sulfur concentrations minus sulfur background concentrations; negative values set to 0; using monthly resolved excess-sulfur, we estimated long-term trends with a 61-yr running median (RM); we attributed a volcanic origin to values exceeding a threshold of the RM + 4 x MAD (median of absolute deviation); we multiplied each monthly excess-sulfur concentration value exceeding the detection treshold with 0.41 water equivalent per year / 12 (i.e., assuming constant snowfall rate throughout the year) to derive monthly volcanic sulfate deposition at the D4 site. Dataset Arctic Greenland Greenland ice core ice core Ice Sheet PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-43.900000,-43.900000,71.400000,71.400000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
aerosol Age D4 Deposition of sulfate volcanic DEPTH ice/snow Greenland Ice core ICEDRILL Ice drill Laki sulfate Sulfur non-sea-salt background excess Tambora volcanic eruption volcanism |
spellingShingle |
aerosol Age D4 Deposition of sulfate volcanic DEPTH ice/snow Greenland Ice core ICEDRILL Ice drill Laki sulfate Sulfur non-sea-salt background excess Tambora volcanic eruption volcanism Sigl, Michael McConnell, Joseph R D4i Greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 CE) |
topic_facet |
aerosol Age D4 Deposition of sulfate volcanic DEPTH ice/snow Greenland Ice core ICEDRILL Ice drill Laki sulfate Sulfur non-sea-salt background excess Tambora volcanic eruption volcanism |
description |
The D4 ice core was recovered in 2003 from a high elevation, cold site in the dry snow region of the Greenland ice sheet (71.4°N, 43.9°W, 2730 m asl, 41 cm water equivalent per year annual accumulation rate). Initial collection and previous analyses of the core have been reported earlier (e.g., McConnell et al., 2007). New longitudinal samples of ~32 by ~32 mm were cut (D4i) from contiguous sections of the remaining D4 core archived in a commercial storage facility in Reno. The samples from near and below the pore close-off depth (66-145 m depth; dating 1733-1900 CE) were analyzed continuously using a state-of-the-art ice core analytical system. https://icecores.org/inventory/d4 . Mean monthly D4i non-sea-salt sulfur concentrations corrected for sea-salt sulfur contribution based on [Na], assuming a S/Na mass ratio of seawater of 0.084 [Bowen, 1979]. Estimated mean monthly D4i median pre-industrial (1733-1875 CE) sulfur background concentrations after excluding volcanic events identified as monthly values exceeding the median concentrations plus two times the interquartile range (Q3 minus Q1). D4i Excess-sulfur concentrations defined as non-sea-salt sulfur concentrations minus sulfur background concentrations; negative values set to 0; using monthly resolved excess-sulfur, we estimated long-term trends with a 61-yr running median (RM); we attributed a volcanic origin to values exceeding a threshold of the RM + 4 x MAD (median of absolute deviation); we multiplied each monthly excess-sulfur concentration value exceeding the detection treshold with 0.41 water equivalent per year / 12 (i.e., assuming constant snowfall rate throughout the year) to derive monthly volcanic sulfate deposition at the D4 site. |
format |
Dataset |
author |
Sigl, Michael McConnell, Joseph R |
author_facet |
Sigl, Michael McConnell, Joseph R |
author_sort |
Sigl, Michael |
title |
D4i Greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 CE) |
title_short |
D4i Greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 CE) |
title_full |
D4i Greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 CE) |
title_fullStr |
D4i Greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 CE) |
title_full_unstemmed |
D4i Greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 CE) |
title_sort |
d4i greenland ice-core non-sea-salt sulfur concentrations and calculated volcanic sulfate deposition (1733-1900 ce) |
publisher |
PANGAEA |
publishDate |
2023 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.960977 https://doi.org/10.1594/PANGAEA.960977 |
op_coverage |
LATITUDE: 71.400000 * LONGITUDE: -43.900000 * MINIMUM DEPTH, ice/snow: 66.270 m * MAXIMUM DEPTH, ice/snow: 145.418 m |
long_lat |
ENVELOPE(-43.900000,-43.900000,71.400000,71.400000) |
genre |
Arctic Greenland Greenland ice core ice core Ice Sheet |
genre_facet |
Arctic Greenland Greenland ice core ice core Ice Sheet |
op_relation |
Fang, Shih-Wei; Sigl, Michael; Toohey, Matthew; Jungclaus, Johann H; Zanchettin, Davide; Timmreck, Claudia (in review): The role of small to moderate volcanic eruptions in the early 19th century climate. Sigl, Michael; McConnell, Joseph R; Toohey, Matthew (2023): Volcanic stratospheric sulfur injection between 1733 and 1895 CE based on the eVolv2k-plus-D4i ice-core eruption catalogue [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.960975 Bowen, H J M (1979): Environmental chemistry of the elements. Academic Press: London, New York McConnell, Joseph R; Edwards, Ross; Kok, Gregory L; Flanner, Mark G; Zender, Charles S; Saltzman, Eric S; Banta, J Ryan; Pasteris, Daniel R; Carter, Megan M; Kahl, Jonathan D W (2007): 20th-Century Industrial Black Carbon Emissions Altered Arctic Climate Forcing. Science, 317(5843), 1381-1384, https://doi.org/10.1126/science.1144856 https://doi.pangaea.de/10.1594/PANGAEA.960977 https://doi.org/10.1594/PANGAEA.960977 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.96097710.1594/PANGAEA.96097510.1126/science.1144856 |
_version_ |
1810293867401969664 |