Aromatic acids in a Eurasian Arctic ice core: a 2600-year proxy record of biomass burning
Wildfires and their emissions have significant impacts on ecosystems, climate, atmospheric chemistry, and carbon cycling. Well-dated proxy records are needed to study the long-term climatic controls on biomass burning and the associated climate feedbacks. There is a particular lack of information ab...
Published in: | Climate of the Past |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2017
|
Subjects: | |
Online Access: | https://doi.org/10.5194/cp-13-395-2017 https://doaj.org/article/6da1236303324e50b7e680239baa4e53 |
id |
ftdoajarticles:oai:doaj.org/article:6da1236303324e50b7e680239baa4e53 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:6da1236303324e50b7e680239baa4e53 2023-05-15T15:02:06+02:00 Aromatic acids in a Eurasian Arctic ice core: a 2600-year proxy record of biomass burning M. M. Grieman M. Aydin D. Fritzsche J. R. McConnell T. Opel M. Sigl E. S. Saltzman 2017-04-01T00:00:00Z https://doi.org/10.5194/cp-13-395-2017 https://doaj.org/article/6da1236303324e50b7e680239baa4e53 EN eng Copernicus Publications http://www.clim-past.net/13/395/2017/cp-13-395-2017.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 1814-9324 1814-9332 doi:10.5194/cp-13-395-2017 https://doaj.org/article/6da1236303324e50b7e680239baa4e53 Climate of the Past, Vol 13, Iss 4, Pp 395-410 (2017) Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 article 2017 ftdoajarticles https://doi.org/10.5194/cp-13-395-2017 2022-12-31T02:44:48Z Wildfires and their emissions have significant impacts on ecosystems, climate, atmospheric chemistry, and carbon cycling. Well-dated proxy records are needed to study the long-term climatic controls on biomass burning and the associated climate feedbacks. There is a particular lack of information about long-term biomass burning variations in Siberia, the largest forested area in the Northern Hemisphere. In this study we report analyses of aromatic acids (vanillic and para -hydroxybenzoic acids) over the past 2600 years in the Eurasian Arctic Akademii Nauk ice core. These compounds are aerosol-borne, semi-volatile organic compounds derived from lignin combustion. The analyses were made using ion chromatography with electrospray mass spectrometric detection. The levels of these aromatic acids ranged from below the detection limit (0.01 to 0.05 ppb; 1 ppb = 1000 ng L −1 ) to about 1 ppb, with roughly 30 % of the samples above the detection limit. In the preindustrial late Holocene, highly elevated aromatic acid levels are observed during three distinct periods (650–300 BCE, 340–660 CE, and 1460–1660 CE). The timing of the two most recent periods coincides with the episodic pulsing of ice-rafted debris in the North Atlantic known as Bond events and a weakened Asian monsoon, suggesting a link between fires and large-scale climate variability on millennial timescales. Aromatic acid levels also are elevated during the onset of the industrial period from 1780 to 1860 CE, but with a different ratio of vanillic and para -hydroxybenzoic acid than is observed during the preindustrial period. This study provides the first millennial-scale record of aromatic acids. This study clearly demonstrates that coherent aromatic acid signals are recorded in polar ice cores that can be used as proxies for past trends in biomass burning. Article in Journal/Newspaper Arctic ice core North Atlantic Siberia Directory of Open Access Journals: DOAJ Articles Arctic Climate of the Past 13 4 395 410 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
spellingShingle |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 M. M. Grieman M. Aydin D. Fritzsche J. R. McConnell T. Opel M. Sigl E. S. Saltzman Aromatic acids in a Eurasian Arctic ice core: a 2600-year proxy record of biomass burning |
topic_facet |
Environmental pollution TD172-193.5 Environmental protection TD169-171.8 Environmental sciences GE1-350 |
description |
Wildfires and their emissions have significant impacts on ecosystems, climate, atmospheric chemistry, and carbon cycling. Well-dated proxy records are needed to study the long-term climatic controls on biomass burning and the associated climate feedbacks. There is a particular lack of information about long-term biomass burning variations in Siberia, the largest forested area in the Northern Hemisphere. In this study we report analyses of aromatic acids (vanillic and para -hydroxybenzoic acids) over the past 2600 years in the Eurasian Arctic Akademii Nauk ice core. These compounds are aerosol-borne, semi-volatile organic compounds derived from lignin combustion. The analyses were made using ion chromatography with electrospray mass spectrometric detection. The levels of these aromatic acids ranged from below the detection limit (0.01 to 0.05 ppb; 1 ppb = 1000 ng L −1 ) to about 1 ppb, with roughly 30 % of the samples above the detection limit. In the preindustrial late Holocene, highly elevated aromatic acid levels are observed during three distinct periods (650–300 BCE, 340–660 CE, and 1460–1660 CE). The timing of the two most recent periods coincides with the episodic pulsing of ice-rafted debris in the North Atlantic known as Bond events and a weakened Asian monsoon, suggesting a link between fires and large-scale climate variability on millennial timescales. Aromatic acid levels also are elevated during the onset of the industrial period from 1780 to 1860 CE, but with a different ratio of vanillic and para -hydroxybenzoic acid than is observed during the preindustrial period. This study provides the first millennial-scale record of aromatic acids. This study clearly demonstrates that coherent aromatic acid signals are recorded in polar ice cores that can be used as proxies for past trends in biomass burning. |
format |
Article in Journal/Newspaper |
author |
M. M. Grieman M. Aydin D. Fritzsche J. R. McConnell T. Opel M. Sigl E. S. Saltzman |
author_facet |
M. M. Grieman M. Aydin D. Fritzsche J. R. McConnell T. Opel M. Sigl E. S. Saltzman |
author_sort |
M. M. Grieman |
title |
Aromatic acids in a Eurasian Arctic ice core: a 2600-year proxy record of biomass burning |
title_short |
Aromatic acids in a Eurasian Arctic ice core: a 2600-year proxy record of biomass burning |
title_full |
Aromatic acids in a Eurasian Arctic ice core: a 2600-year proxy record of biomass burning |
title_fullStr |
Aromatic acids in a Eurasian Arctic ice core: a 2600-year proxy record of biomass burning |
title_full_unstemmed |
Aromatic acids in a Eurasian Arctic ice core: a 2600-year proxy record of biomass burning |
title_sort |
aromatic acids in a eurasian arctic ice core: a 2600-year proxy record of biomass burning |
publisher |
Copernicus Publications |
publishDate |
2017 |
url |
https://doi.org/10.5194/cp-13-395-2017 https://doaj.org/article/6da1236303324e50b7e680239baa4e53 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic ice core North Atlantic Siberia |
genre_facet |
Arctic ice core North Atlantic Siberia |
op_source |
Climate of the Past, Vol 13, Iss 4, Pp 395-410 (2017) |
op_relation |
http://www.clim-past.net/13/395/2017/cp-13-395-2017.pdf https://doaj.org/toc/1814-9324 https://doaj.org/toc/1814-9332 1814-9324 1814-9332 doi:10.5194/cp-13-395-2017 https://doaj.org/article/6da1236303324e50b7e680239baa4e53 |
op_doi |
https://doi.org/10.5194/cp-13-395-2017 |
container_title |
Climate of the Past |
container_volume |
13 |
container_issue |
4 |
container_start_page |
395 |
op_container_end_page |
410 |
_version_ |
1766334085586747392 |