Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing

Biomass burning influences global atmospheric chemistry by releasing greenhouse gases and climate-forcing aerosols. There is controversy about the magnitude and timing of Holocene changes in biomass burning emissions from millennial to centennial timescales and, in particular, about the possible imp...

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Published in:Climate of the Past
Main Authors: Segato, Delia, Villoslada Hidalgo, Maria Del Carmen, Edwards, Ross, Barbaro, Elena, Vallelonga, Paul, Kjær, Helle Astrid, Simonsen, Marius, Vinther, Bo, Maffezzoli, Niccolò, Zangrando, Roberta, Turetta, Clara, Battistel, Dario, Vésteinsson, Orri, Barbante, Carlo, Spolaor, Andrea
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2021
Subjects:
geo
Online Access:https://doi.org/10.5194/cp-17-1533-2021
https://cp.copernicus.org/articles/17/1533/2021/
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spelling fttriple:oai:gotriple.eu:SXUL4cuB86ep_hDEM51Ou 2023-05-15T16:29:26+02:00 Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing Segato, Delia Villoslada Hidalgo, Maria Del Carmen Edwards, Ross Barbaro, Elena Vallelonga, Paul Kjær, Helle Astrid Simonsen, Marius Vinther, Bo Maffezzoli, Niccolò Zangrando, Roberta Turetta, Clara Battistel, Dario Vésteinsson, Orri Barbante, Carlo Spolaor, Andrea 2021-07-20 https://doi.org/10.5194/cp-17-1533-2021 https://cp.copernicus.org/articles/17/1533/2021/ en eng Copernicus Publications doi:10.5194/cp-17-1533-2021 10670/1.mtcgd1 1814-9324 1814-9332 https://cp.copernicus.org/articles/17/1533/2021/ undefined Geographica Helvetica - geography eISSN: 1814-9332 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2021 fttriple https://doi.org/10.5194/cp-17-1533-2021 2023-01-22T17:52:50Z Biomass burning influences global atmospheric chemistry by releasing greenhouse gases and climate-forcing aerosols. There is controversy about the magnitude and timing of Holocene changes in biomass burning emissions from millennial to centennial timescales and, in particular, about the possible impact of ancient civilizations. Here we present a 5 kyr record of fire activity proxies levoglucosan, black carbon, and ammonium measured in the RECAP (Renland ice cap) ice core, drilled in coastal eastern Greenland, and therefore affected by processes occurring in the high North Atlantic region. Levoglucosan and ammonium fluxes are high from 5 to 4.5 kyr BP (thousand years before 2000 CE) followed by an abrupt decline, possibly due to monotonic decline in Northern Hemisphere summer insolation. Levoglucosan and black carbon show an abrupt decline at 1.1 kyr BP, suggesting a decline in the wildfire regime in Iceland due to the extensive land clearing caused by Viking colonizers. All fire proxies reach a minimum during the second half of the last century, after which levoglucosan and ammonium fluxes increase again, in particular over the last 200 years. We find that the fire regime reconstructed from RECAP fluxes seems mainly related to climatic changes; however over the last millennium human activities might have influenced wildfire frequency/occurrence substantially. Article in Journal/Newspaper Greenland Ice cap ice core Iceland North Atlantic Unknown Greenland Renland ENVELOPE(-26.750,-26.750,71.200,71.200) Climate of the Past 17 4 1533 1545
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic envir
geo
spellingShingle envir
geo
Segato, Delia
Villoslada Hidalgo, Maria Del Carmen
Edwards, Ross
Barbaro, Elena
Vallelonga, Paul
Kjær, Helle Astrid
Simonsen, Marius
Vinther, Bo
Maffezzoli, Niccolò
Zangrando, Roberta
Turetta, Clara
Battistel, Dario
Vésteinsson, Orri
Barbante, Carlo
Spolaor, Andrea
Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing
topic_facet envir
geo
description Biomass burning influences global atmospheric chemistry by releasing greenhouse gases and climate-forcing aerosols. There is controversy about the magnitude and timing of Holocene changes in biomass burning emissions from millennial to centennial timescales and, in particular, about the possible impact of ancient civilizations. Here we present a 5 kyr record of fire activity proxies levoglucosan, black carbon, and ammonium measured in the RECAP (Renland ice cap) ice core, drilled in coastal eastern Greenland, and therefore affected by processes occurring in the high North Atlantic region. Levoglucosan and ammonium fluxes are high from 5 to 4.5 kyr BP (thousand years before 2000 CE) followed by an abrupt decline, possibly due to monotonic decline in Northern Hemisphere summer insolation. Levoglucosan and black carbon show an abrupt decline at 1.1 kyr BP, suggesting a decline in the wildfire regime in Iceland due to the extensive land clearing caused by Viking colonizers. All fire proxies reach a minimum during the second half of the last century, after which levoglucosan and ammonium fluxes increase again, in particular over the last 200 years. We find that the fire regime reconstructed from RECAP fluxes seems mainly related to climatic changes; however over the last millennium human activities might have influenced wildfire frequency/occurrence substantially.
format Article in Journal/Newspaper
author Segato, Delia
Villoslada Hidalgo, Maria Del Carmen
Edwards, Ross
Barbaro, Elena
Vallelonga, Paul
Kjær, Helle Astrid
Simonsen, Marius
Vinther, Bo
Maffezzoli, Niccolò
Zangrando, Roberta
Turetta, Clara
Battistel, Dario
Vésteinsson, Orri
Barbante, Carlo
Spolaor, Andrea
author_facet Segato, Delia
Villoslada Hidalgo, Maria Del Carmen
Edwards, Ross
Barbaro, Elena
Vallelonga, Paul
Kjær, Helle Astrid
Simonsen, Marius
Vinther, Bo
Maffezzoli, Niccolò
Zangrando, Roberta
Turetta, Clara
Battistel, Dario
Vésteinsson, Orri
Barbante, Carlo
Spolaor, Andrea
author_sort Segato, Delia
title Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing
title_short Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing
title_full Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing
title_fullStr Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing
title_full_unstemmed Five thousand years of fire history in the high North Atlantic region: natural variability and ancient human forcing
title_sort five thousand years of fire history in the high north atlantic region: natural variability and ancient human forcing
publisher Copernicus Publications
publishDate 2021
url https://doi.org/10.5194/cp-17-1533-2021
https://cp.copernicus.org/articles/17/1533/2021/
long_lat ENVELOPE(-26.750,-26.750,71.200,71.200)
geographic Greenland
Renland
geographic_facet Greenland
Renland
genre Greenland
Ice cap
ice core
Iceland
North Atlantic
genre_facet Greenland
Ice cap
ice core
Iceland
North Atlantic
op_source Geographica Helvetica - geography
eISSN: 1814-9332
op_relation doi:10.5194/cp-17-1533-2021
10670/1.mtcgd1
1814-9324
1814-9332
https://cp.copernicus.org/articles/17/1533/2021/
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op_doi https://doi.org/10.5194/cp-17-1533-2021
container_title Climate of the Past
container_volume 17
container_issue 4
container_start_page 1533
op_container_end_page 1545
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