Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/156607
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- Title
- Pollen-based continental climate reconstructions at 6 and 21 ka : a global synthesis
- Related
- Climate dynamics, Vol. 37, No. 3-4, (2010), p.775-802
- DOI
- 10.1007/s00382-010-0904-1
- Publisher
- Springer
- Date
- 2010
- FoR/RFCD Code(s)
-
040500 Oceanography
040100 Atmospheric Sciences
- Author/Creator
- Bartlein, P. J
- Author/Creator
- Harrison, S. P
- Author/Creator
- Prentice, I. C
- Author/Creator
- Scholze, M
- Author/Creator
- Seppä, H
- Author/Creator
- Shuman, B
- Author/Creator
- Sugita, S
- Author/Creator
- Thompson, R. S
- Author/Creator
- Viau, A. E
- Author/Creator
- Williams, J
- Author/Creator
- Wu, H
- Author/Creator
- Brewer, S
- Author/Creator
- Connor, S
- Author/Creator
- Davis, B. A. S
- Author/Creator
- Gajewski, K
- Author/Creator
- Guiot, J
- Author/Creator
- Harrison-Prentice, T. I
- Author/Creator
- Henderson, A
- Author/Creator
- Peyron, O
- Description
- Subfossil pollen and plant macrofossil data derived from ¹⁴C-dated sediment profiles can provide quantitative information on glacial and interglacial climates. The data allow climate variables related to growing-season warmth, winter cold, and plant-available moisture to be reconstructed. Continental-scale reconstructions have been made for the mid-Holocene (MH, around 6 ka) and Last Glacial Maximum (LGM, around 21 ka), allowing comparison with palaeoclimate simulations currently being carried out as part of the fifth Assessment Report (AR5) of the Intergovernmental Panel on Climate Change. The synthesis of the available MH and LGM climate reconstructions and their uncertainties, obtained using modern-analogue, regression and model-inversion techniques, is presented for four temperature variables and two moisture variables. Reconstructions of the same variables based on surface-pollen assemblages are shown to be accurate and unbiased. Reconstructed LGM and MH climate anomaly patterns are coherent, consistent between variables, and robust with respect to the choice of technique. They support a conceptual model of the controls of Late Quaternary climate change whereby the first-order effects of orbital variations and greenhouse forcing on the seasonal cycle of temperature are predictably modified by responses of the atmospheric circulation and surface energy balance.
- Description
- 28 page(s)
- Subject Keyword
- 040500 Oceanography
- Subject Keyword
- 040100 Atmospheric Sciences
- Subject Keyword
- Pollen
- Subject Keyword
- Plant macrofossils
- Subject Keyword
- Palaeovegetation palaeoclimate reconstructions
- Subject Keyword
- Reconstruction uncertainties
- Subject Keyword
- Mid-Holocene
- Subject Keyword
- Last glacial maximum
- Subject Keyword
- Climate model evaluation
- Resource Type
- journal article
- Organisation
- Macquarie University. Dept. of Biological Sciences
- Identifier
- http://hdl.handle.net/1959.14/156607
- Identifier
- ISSN:0930-7575
- Identifier
- mq-rm-2010003509
- Language
- eng
- Rights
- Copyright the Author(s) 2010. This article is published with open access at Springerlink.com. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.
- Full Text
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