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 aci...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2018-05-01
|
| Series: | Climate of the Past |
| Online Access: | https://www.clim-past.net/14/637/2018/cp-14-637-2018.pdf |
| _version_ | 1829518480495345664 |
|---|---|
| author | M. M. Grieman M. Aydin E. Isaksson M. Schwikowski E. S. Saltzman |
| author_facet | M. M. Grieman M. Aydin E. Isaksson M. Schwikowski E. S. Saltzman |
| author_sort | M. M. Grieman |
| collection | DOAJ |
| 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<sup>−1</sup>). 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. |
| first_indexed | 2024-12-16T14:22:44Z |
| format | Article |
| id | doaj.art-91cfabeecef6436e95548c38f76fb8f8 |
| institution | Directory Open Access Journal |
| issn | 1814-9324 1814-9332 |
| language | English |
| last_indexed | 2024-12-16T14:22:44Z |
| publishDate | 2018-05-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Climate of the Past |
| spelling | doaj.art-91cfabeecef6436e95548c38f76fb8f82022-12-21T22:28:28ZengCopernicus PublicationsClimate of the Past1814-93241814-93322018-05-011463765110.5194/cp-14-637-2018Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burningM. M. Grieman0M. Aydin1E. Isaksson2M. Schwikowski3E. S. Saltzman4Department of Earth System Science, University of California, Irvine, Irvine, California 92697-3100, USADepartment of Earth System Science, University of California, Irvine, Irvine, California 92697-3100, USANorwegian Polar Institute Fram Centre 9296, Tromsø, NorwayPaul Scherrer Institute, Villigen, Switzerland and Oeschger Centre for Climate Change Research, University of Bern, Bern, SwitzerlandDepartment of Earth System Science, University of California, Irvine, Irvine, California 92697-3100, USAThis 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<sup>−1</sup>). 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.https://www.clim-past.net/14/637/2018/cp-14-637-2018.pdf |
| spellingShingle | M. M. Grieman M. Aydin E. Isaksson M. Schwikowski E. S. Saltzman Aromatic acids in an Arctic ice core from Svalbard: a proxy record of biomass burning Climate of the Past |
| title | 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_short | 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 |
| url | https://www.clim-past.net/14/637/2018/cp-14-637-2018.pdf |
| work_keys_str_mv | AT mmgrieman aromaticacidsinanarcticicecorefromsvalbardaproxyrecordofbiomassburning AT maydin aromaticacidsinanarcticicecorefromsvalbardaproxyrecordofbiomassburning AT eisaksson aromaticacidsinanarcticicecorefromsvalbardaproxyrecordofbiomassburning AT mschwikowski aromaticacidsinanarcticicecorefromsvalbardaproxyrecordofbiomassburning AT essaltzman aromaticacidsinanarcticicecorefromsvalbardaproxyrecordofbiomassburning |