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The ACER pollen and charcoal database: a global resource to document vegetation and fire response to abrupt climate changes during the last glacial period

Goni, MFS; Desprat, S; Daniau, A-L; Bassinot, FC; Polanco-Martinez, JM; Harrison, SP; Allen, JRM; ... Yamamoto, M; + view all (2017) The ACER pollen and charcoal database: a global resource to document vegetation and fire response to abrupt climate changes during the last glacial period. Earth System Science Data , 9 (2) pp. 679-695. 10.5194/essd-9-679-2017. Green open access

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Abstract

Quaternary records provide an opportunity to examine the nature of the vegetation and fire responses to rapid past climate changes comparable in velocity and magnitude to those expected in the 21st-century. The best documented examples of rapid climate change in the past are the warming events associated with the Dansgaard–Oeschger (D–O) cycles during the last glacial period, which were sufficiently large to have had a potential feedback through changes in albedo and greenhouse gas emissions on climate. Previous reconstructions of vegetation and fire changes during the D–O cycles used independently constructed age models, making it difficult to compare the changes between different sites and regions. Here, we present the ACER (Abrupt Climate Changes and Environmental Responses) global database, which includes 93 pollen records from the last glacial period (73–15 ka) with a temporal resolution better than 1000 years, 32 of which also provide charcoal records. A harmonized and consistent chronology based on radiometric dating (14C, 234U∕230Th, optically stimulated luminescence (OSL), 40Ar∕39Ar-dated tephra layers) has been constructed for 86 of these records, although in some cases additional information was derived using common control points based on event stratigraphy. The ACER database compiles metadata including geospatial and dating information, pollen and charcoal counts, and pollen percentages of the characteristic biomes and is archived in Microsoft AccessTM at https://doi.org/10.1594/PANGAEA.870867.

Type: Article
Title: The ACER pollen and charcoal database: a global resource to document vegetation and fire response to abrupt climate changes during the last glacial period
Open access status: An open access version is available from UCL Discovery
DOI: 10.5194/essd-9-679-2017
Publisher version: https://doi.org/10.5194/essd-9-679-2017
Language: English
Additional information: © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License.
Keywords: Science & Technology, Physical Sciences, Geosciences, Multidisciplinary, Meteorology & Atmospheric Sciences, Geology, MILLENNIAL-SCALE VARIABILITY, GREENLAND ICE CORE, LATE PLEISTOCENE, NORTH-ATLANTIC, DANSGAARD-OESCHGER, TIME SCALES, NEW-ZEALAND, RECORD, AGE, EUROPE
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL SLASH
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS
UCL > Provost and Vice Provost Offices > UCL SLASH > Faculty of S&HS > Dept of Geography
URI: https://discovery.ucl.ac.uk/id/eprint/1575289
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