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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.

Sánchez Goñi, M. F. and Desprat, S. and Daniau, A. L. and Bassinot, F. C. and Polanco-Martínez, J. M. and Harrison, S. P. and Allen, J. R. M. and Anderson, R. S. and Behling, H. and Bonnefille, R. and Burjachs, F. and Carrión, J. S. and Cheddadi, R. and Clark, J. S. and Combourieu-Nebout, N. and Mustaphi, C.J.C. and Debusk, G. H. and Dupont, L. M. and Finch, J. M. and Fletcher, W. J. and Giardini, M. and González, C. and Gosling, W. D. and Grigg, L. D. and Grimm, E. C. and Hayashi, R. and Helmens, K. and Heusser, L. E. and Hill, T. and Hope, G. and Huntley, B. and Igarashi, Y. and Irino, T. and Jacobs, B. and Jiménez-Moreno, G. and Kawai, S. and Kershaw, A. P. and Kumon, F. and Lawson, I. T. and Ledru, M. P. and Lézine, A. M. and Liew, P. M. and Magri, D. and Marchant, R. and Margari, V. and Mayle, F. E. and McKenzie, G. M. and Moss, P. and Müller, S. and Müller, U. C. and Naughton, F. and Newnham, R. M. and Oba, T. and Pérez-Obiol R., and Pini, R. and Ravazzi, C. and Roucoux, K. H. and Rucina, S. M. and Scott, L. and Takahara, H. and Tzedakis, P. C. and Urrego, D. H. and van Geel, B. and Valencia, B. G. and Vandergoes, M. J. and Vincens, A. and Whitlock, C. L. and Willard, D. A. and Yamamoto, M. (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.

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.

Item Type:Article
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.5194/essd-9-679-2017
Publisher statement:© Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License.
Date accepted:07 August 2017
Date deposited:12 September 2017
Date of first online publication:11 September 2017
Date first made open access:12 September 2017

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