Methanesulfonate in the south central Greenland 20D ice core, 1767-1984
The concentration of methanesulfonic acid (MSA) was determined in a shallow south central Greenland ice core (20D). This study provides a high-resolution record of the DMS-derived biogenic sulfur in Greenland precipitation over the past 200 years. The mean concentration of MSA is 3.30 ppb (σ = 2.38...
Main Author: | |
---|---|
Format: | Dataset |
Language: | unknown |
Published: |
Arctic Data Center
2017
|
Subjects: | |
Online Access: | https://doi.org/10.18739/A2TZ7X |
id |
dataone:doi:10.18739/A2TZ7X |
---|---|
record_format |
openpolar |
spelling |
dataone:doi:10.18739/A2TZ7X 2024-06-03T18:46:51+00:00 Methanesulfonate in the south central Greenland 20D ice core, 1767-1984 Eric Saltzman south central Greenland ENVELOPE(-44.8667,-44.8667,65.01,65.01) BEGINDATE: 1767-01-01T00:00:00Z ENDDATE: 1984-01-01T00:00:00Z 2017-09-27T00:00:00Z https://doi.org/10.18739/A2TZ7X unknown Arctic Data Center ice core ice core chemistry ice core ions Dataset 2017 dataone:urn:node:ARCTIC https://doi.org/10.18739/A2TZ7X 2024-06-03T18:10:33Z The concentration of methanesulfonic acid (MSA) was determined in a shallow south central Greenland ice core (20D). This study provides a high-resolution record of the DMS-derived biogenic sulfur in Greenland precipitation over the past 200 years. The mean concentration of MSA is 3.30 ppb (σ = 2.38 ppb, n = 1134). The general trend of MSA is an increase from 3.01 to 4.10 ppb between 1767 and 1900, followed by a steady decrease to 2.34 ppb at the present time. This trend is in marked contrast to that of non-sea-salt sulfate which increases dramatically after 1900 due to the input of anthropogenic sulfur. The MSA fraction ((MSA / (MSA +nss sulfate)) * 100) ranges from a mean of 15% in preindustrial ice to less than 5% in recent ice. These MSA fractions suggest that approximately 15 to 40% of the sulfur in recent Greenland ice is of biological origin. It is suggested that there is a significant low- latitude component to the biogenic sulfur in the core and that variations in the MSA fraction reflect changes in the relative strengths of low- and high-latitude inputs. The data show no evidence for a strong dependence of dimethyl sulfide (DMS) emissions on sea surface temperature during the last century. There is also no indication that the yield of MSA from DMS oxidation has been altered by increased NO x levels over the North Atlantic during this period. Details of the methods, data, and interpretation are given in: Whung, P.Y., E.S. Saltzman, M.J. Spencer, N. Gundestrup, and P.A. Mayewski, 1994. A two hundred year record of biogenic sulfur in a South Greenland ice core (20D). J. Geophys. Res., 99, 1147-1156. Whung, Pai-Yei, "A study of methanesulfonic acid in ice cores" (1991). Dissertations from ProQuest. 2946. http://scholarlyrepository.miami.edu/dissertations/2946 Dataset Greenland Greenland ice core ice core North Atlantic Arctic Data Center (via DataONE) Greenland ENVELOPE(-44.8667,-44.8667,65.01,65.01) |
institution |
Open Polar |
collection |
Arctic Data Center (via DataONE) |
op_collection_id |
dataone:urn:node:ARCTIC |
language |
unknown |
topic |
ice core ice core chemistry ice core ions |
spellingShingle |
ice core ice core chemistry ice core ions Eric Saltzman Methanesulfonate in the south central Greenland 20D ice core, 1767-1984 |
topic_facet |
ice core ice core chemistry ice core ions |
description |
The concentration of methanesulfonic acid (MSA) was determined in a shallow south central Greenland ice core (20D). This study provides a high-resolution record of the DMS-derived biogenic sulfur in Greenland precipitation over the past 200 years. The mean concentration of MSA is 3.30 ppb (σ = 2.38 ppb, n = 1134). The general trend of MSA is an increase from 3.01 to 4.10 ppb between 1767 and 1900, followed by a steady decrease to 2.34 ppb at the present time. This trend is in marked contrast to that of non-sea-salt sulfate which increases dramatically after 1900 due to the input of anthropogenic sulfur. The MSA fraction ((MSA / (MSA +nss sulfate)) * 100) ranges from a mean of 15% in preindustrial ice to less than 5% in recent ice. These MSA fractions suggest that approximately 15 to 40% of the sulfur in recent Greenland ice is of biological origin. It is suggested that there is a significant low- latitude component to the biogenic sulfur in the core and that variations in the MSA fraction reflect changes in the relative strengths of low- and high-latitude inputs. The data show no evidence for a strong dependence of dimethyl sulfide (DMS) emissions on sea surface temperature during the last century. There is also no indication that the yield of MSA from DMS oxidation has been altered by increased NO x levels over the North Atlantic during this period. Details of the methods, data, and interpretation are given in: Whung, P.Y., E.S. Saltzman, M.J. Spencer, N. Gundestrup, and P.A. Mayewski, 1994. A two hundred year record of biogenic sulfur in a South Greenland ice core (20D). J. Geophys. Res., 99, 1147-1156. Whung, Pai-Yei, "A study of methanesulfonic acid in ice cores" (1991). Dissertations from ProQuest. 2946. http://scholarlyrepository.miami.edu/dissertations/2946 |
format |
Dataset |
author |
Eric Saltzman |
author_facet |
Eric Saltzman |
author_sort |
Eric Saltzman |
title |
Methanesulfonate in the south central Greenland 20D ice core, 1767-1984 |
title_short |
Methanesulfonate in the south central Greenland 20D ice core, 1767-1984 |
title_full |
Methanesulfonate in the south central Greenland 20D ice core, 1767-1984 |
title_fullStr |
Methanesulfonate in the south central Greenland 20D ice core, 1767-1984 |
title_full_unstemmed |
Methanesulfonate in the south central Greenland 20D ice core, 1767-1984 |
title_sort |
methanesulfonate in the south central greenland 20d ice core, 1767-1984 |
publisher |
Arctic Data Center |
publishDate |
2017 |
url |
https://doi.org/10.18739/A2TZ7X |
op_coverage |
south central Greenland ENVELOPE(-44.8667,-44.8667,65.01,65.01) BEGINDATE: 1767-01-01T00:00:00Z ENDDATE: 1984-01-01T00:00:00Z |
long_lat |
ENVELOPE(-44.8667,-44.8667,65.01,65.01) |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Greenland ice core ice core North Atlantic |
genre_facet |
Greenland Greenland ice core ice core North Atlantic |
op_doi |
https://doi.org/10.18739/A2TZ7X |
_version_ |
1800872161875853312 |