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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Online Access: | http://hdl.handle.net/10278/3751111 https://doi.org/10.5194/cp-17-1533-2021 |
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ftuniveneziairis:oai:iris.unive.it:10278/3751111 2024-04-14T08:12:31+00:00 Five thousand years of fire history in the high North Atlantic region: Natural variability and ancient human forcing Segato D. Villoslada Hidalgo M. D. C. Edwards R. Barbaro E. Vallelonga P. Kjaer H. A. Simonsen M. Vinther B. Maffezzoli N. Zangrando R. Turetta C. Battistel D. Vesteinsson O. Barbante C. Spolaor A. Segato, D. Villoslada Hidalgo, M. D. C. Edwards, R. Barbaro, E. Vallelonga, P. Kjaer, H. A. Simonsen, M. Vinther, B. Maffezzoli, N. Zangrando, R. Turetta, C. Battistel, D. Vesteinsson, O. Barbante, C. Spolaor, A. 2021 http://hdl.handle.net/10278/3751111 https://doi.org/10.5194/cp-17-1533-2021 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000675387600002 volume:17 issue:4 firstpage:1533 lastpage:1545 numberofpages:13 journal:CLIMATE OF THE PAST info:eu-repo/grantAgreement/EC/FP7/610055 http://hdl.handle.net/10278/3751111 doi:10.5194/cp-17-1533-2021 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85111135383 info:eu-repo/semantics/openAccess Settore CHIM/01 - Chimica Analitica info:eu-repo/semantics/article 2021 ftuniveneziairis https://doi.org/10.5194/cp-17-1533-2021 2024-03-21T18:20:11Z 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 5gkyr 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 4.5gkyrgBP (thousand years before 2000gCE) followed by an abrupt decline, possibly due to monotonic decline in Northern Hemisphere summer insolation. Levoglucosan and black carbon show an abrupt decline at 1.1gkyrgBP, 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 Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) Greenland Renland ENVELOPE(-26.750,-26.750,71.200,71.200) Climate of the Past 17 4 1533 1545 |
institution |
Open Polar |
collection |
Università Ca’ Foscari Venezia: ARCA (Archivio Istituzionale della Ricerca) |
op_collection_id |
ftuniveneziairis |
language |
English |
topic |
Settore CHIM/01 - Chimica Analitica |
spellingShingle |
Settore CHIM/01 - Chimica Analitica Segato D. Villoslada Hidalgo M. D. C. Edwards R. Barbaro E. Vallelonga P. Kjaer H. A. Simonsen M. Vinther B. Maffezzoli N. Zangrando R. Turetta C. Battistel D. Vesteinsson O. Barbante C. Spolaor A. Five thousand years of fire history in the high North Atlantic region: Natural variability and ancient human forcing |
topic_facet |
Settore CHIM/01 - Chimica Analitica |
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 5gkyr 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 4.5gkyrgBP (thousand years before 2000gCE) followed by an abrupt decline, possibly due to monotonic decline in Northern Hemisphere summer insolation. Levoglucosan and black carbon show an abrupt decline at 1.1gkyrgBP, 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. |
author2 |
Segato, D. Villoslada Hidalgo, M. D. C. Edwards, R. Barbaro, E. Vallelonga, P. Kjaer, H. A. Simonsen, M. Vinther, B. Maffezzoli, N. Zangrando, R. Turetta, C. Battistel, D. Vesteinsson, O. Barbante, C. Spolaor, A. |
format |
Article in Journal/Newspaper |
author |
Segato D. Villoslada Hidalgo M. D. C. Edwards R. Barbaro E. Vallelonga P. Kjaer H. A. Simonsen M. Vinther B. Maffezzoli N. Zangrando R. Turetta C. Battistel D. Vesteinsson O. Barbante C. Spolaor A. |
author_facet |
Segato D. Villoslada Hidalgo M. D. C. Edwards R. Barbaro E. Vallelonga P. Kjaer H. A. Simonsen M. Vinther B. Maffezzoli N. Zangrando R. Turetta C. Battistel D. Vesteinsson O. Barbante C. Spolaor A. |
author_sort |
Segato D. |
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 |
publishDate |
2021 |
url |
http://hdl.handle.net/10278/3751111 https://doi.org/10.5194/cp-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_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000675387600002 volume:17 issue:4 firstpage:1533 lastpage:1545 numberofpages:13 journal:CLIMATE OF THE PAST info:eu-repo/grantAgreement/EC/FP7/610055 http://hdl.handle.net/10278/3751111 doi:10.5194/cp-17-1533-2021 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85111135383 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-17-1533-2021 |
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