Climatic reconstruction in Europe for 18,000 yr B.P. from pollen data

Auteurs :
PEYRON, O.
GUIOT, J.
CHEDDADI, R.
TARASOV, P.
REILLE, M.
DE BEAULIEU, J.-L.
BOTTEMA, S.
ANDRIEU, V.

Description :
This paper proposes a new method of reconstructing past climate from pollen data, which is applicable to other continents as well as Europe. In order to deal with the lack of perfect analogs of fossil assemblages, the AA. used a combination of pollen types grouped according to plant phenology and present climate constraints rather than pollen percentages for each individual taxon. The distribution of pollen taxa into plant functional types (PFTs) is aimed to reflect the vegetation in terms of biomes. The climatic variables are then calibrated on these PFTs using an artificial neural network technique. The method is applied to the glacial steppic vegetation in Europe, using 15 pollen records.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1998, vol. 49, n°. 2, p. 183-196, Collation : Illustration, Références bibliographiques : 55 ref.

Date :
1998

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier