Pollen-based climate reconstruction: Calibration of the vegetation–pollen processes

V. Garreta, J. Guiot, F. Mortier, J. Chadœuf and C. Hély

Ecological Modelling, 2012, vol. 235-236, 81-94

Abstract: Palaeoclimate reconstructions are based on the relationship between climate and sediment pollen assemblages. This model is called the transfer function (TF). Process-based TF emerge as an opportunity to better quantify past climate changes. For example, when a process-based model of vegetation dynamics is part of the TF it allows to include atmospheric CO2 concentration and plant–plant interactions as factors affecting the reconstruction. We propose the missing piece for a fully process-based TF: the model linking, at a continental scale, vegetation model outputs and pollen sampled in sediments. We perform its calibration and we explore the quality of fit.

Keywords: Palaeoclimate reconstruction; Pollen production; Pollen dispersal; Vegetation model error; Multinomial data; Hierarchical Bayesian model (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:235-236:y:2012:i::p:81-94

DOI: 10.1016/j.ecolmodel.2012.03.031

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