Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning
This study presents vanillic acid and para-hydroxybenzoic acid levels in an Arctic ice core from Lomonosovfonna, Svalbard covering the past 800 years. These aromatic acids are likely derived from lignin combustion in wildfires and long-range aerosol transport. Vanillic and para-hydroxybenzoic acid a...
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ftcopernicus:oai:publications.copernicus.org:cp62178 2023-05-15T14:54:49+02:00 Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning Grieman, Mackenzie M. Aydin, Murat Isaksson, Elisabeth Schwikowski, Margit Saltzman, Eric S. 2018-09-27 application/pdf https://doi.org/10.5194/cp-14-637-2018 https://cp.copernicus.org/articles/14/637/2018/ eng eng doi:10.5194/cp-14-637-2018 https://cp.copernicus.org/articles/14/637/2018/ eISSN: 1814-9332 Text 2018 ftcopernicus https://doi.org/10.5194/cp-14-637-2018 2020-07-20T16:23:18Z This study presents vanillic acid and para-hydroxybenzoic acid levels in an Arctic ice core from Lomonosovfonna, Svalbard covering the past 800 years. These aromatic acids are likely derived from lignin combustion in wildfires and long-range aerosol transport. Vanillic and para-hydroxybenzoic acid are present throughout the ice core, confirming that these compounds are preserved on millennial timescales. Vanillic and para-hydroxybenzoic acid concentrations in the Lomonosovfonna ice core ranged from below the limits of detection to 0.2 and 0.07 ppb, respectively (1 ppb = 1000 ng L −1 ). Vanillic acid levels are high (maximum of 0.1 ppb) from 1200 to 1400 CE, then gradually decline into the twentieth century. The largest peak in the vanillic acid in the record occurs from 2000 to 2008 CE. In the para-hydrobenzoic acid record, there are three centennial-scale peaks around 1300, 1550, and 1650 CE superimposed on a long-term decline in the baseline levels throughout the record. Ten-day air mass back trajectories for a decade of fire seasons (March–November, 2006–2015) indicate that Siberia and Europe are the principle modern source regions for wildfire emissions reaching the Lomonosovfonna site. The Lomonosovfonna data are similar to those from the Eurasian Arctic Akademii Nauk ice core during the early part of the record (1220–1400 CE), but the two ice cores diverge markedly after 1400 CE. This coincides with a shift in North Atlantic climate marked by a change of the North Atlantic Oscillation from a positive to a more negative state. Text Arctic ice core North Atlantic North Atlantic oscillation Svalbard Siberia Copernicus Publications: E-Journals Arctic Lomonosovfonna ENVELOPE(17.663,17.663,78.774,78.774) Svalbard Climate of the Past 14 5 637 651 |
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Open Polar |
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Copernicus Publications: E-Journals |
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ftcopernicus |
language |
English |
description |
This study presents vanillic acid and para-hydroxybenzoic acid levels in an Arctic ice core from Lomonosovfonna, Svalbard covering the past 800 years. These aromatic acids are likely derived from lignin combustion in wildfires and long-range aerosol transport. Vanillic and para-hydroxybenzoic acid are present throughout the ice core, confirming that these compounds are preserved on millennial timescales. Vanillic and para-hydroxybenzoic acid concentrations in the Lomonosovfonna ice core ranged from below the limits of detection to 0.2 and 0.07 ppb, respectively (1 ppb = 1000 ng L −1 ). Vanillic acid levels are high (maximum of 0.1 ppb) from 1200 to 1400 CE, then gradually decline into the twentieth century. The largest peak in the vanillic acid in the record occurs from 2000 to 2008 CE. In the para-hydrobenzoic acid record, there are three centennial-scale peaks around 1300, 1550, and 1650 CE superimposed on a long-term decline in the baseline levels throughout the record. Ten-day air mass back trajectories for a decade of fire seasons (March–November, 2006–2015) indicate that Siberia and Europe are the principle modern source regions for wildfire emissions reaching the Lomonosovfonna site. The Lomonosovfonna data are similar to those from the Eurasian Arctic Akademii Nauk ice core during the early part of the record (1220–1400 CE), but the two ice cores diverge markedly after 1400 CE. This coincides with a shift in North Atlantic climate marked by a change of the North Atlantic Oscillation from a positive to a more negative state. |
format |
Text |
author |
Grieman, Mackenzie M. Aydin, Murat Isaksson, Elisabeth Schwikowski, Margit Saltzman, Eric S. |
spellingShingle |
Grieman, Mackenzie M. Aydin, Murat Isaksson, Elisabeth Schwikowski, Margit Saltzman, Eric S. Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning |
author_facet |
Grieman, Mackenzie M. Aydin, Murat Isaksson, Elisabeth Schwikowski, Margit Saltzman, Eric S. |
author_sort |
Grieman, Mackenzie M. |
title |
Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning |
title_short |
Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning |
title_full |
Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning |
title_fullStr |
Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning |
title_full_unstemmed |
Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning |
title_sort |
aromatic acids in an arctic ice core from svalbard: a proxy record of biomass burning |
publishDate |
2018 |
url |
https://doi.org/10.5194/cp-14-637-2018 https://cp.copernicus.org/articles/14/637/2018/ |
long_lat |
ENVELOPE(17.663,17.663,78.774,78.774) |
geographic |
Arctic Lomonosovfonna Svalbard |
geographic_facet |
Arctic Lomonosovfonna Svalbard |
genre |
Arctic ice core North Atlantic North Atlantic oscillation Svalbard Siberia |
genre_facet |
Arctic ice core North Atlantic North Atlantic oscillation Svalbard Siberia |
op_source |
eISSN: 1814-9332 |
op_relation |
doi:10.5194/cp-14-637-2018 https://cp.copernicus.org/articles/14/637/2018/ |
op_doi |
https://doi.org/10.5194/cp-14-637-2018 |
container_title |
Climate of the Past |
container_volume |
14 |
container_issue |
5 |
container_start_page |
637 |
op_container_end_page |
651 |
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1766326564433166336 |