Project 1705P: PC-MIP: Pollen-Climate Methods Inter-comparison Project Workshop


Fossil pollen preserved in the sediments of lakes and bogs from around the world provides one of the main sources of proxy data for reconstructing past climate during the Quaternary period. Quantitative climate reconstructions from pollen data were first pioneered over 70 years ago. Since then the number of different methods has expanded greatly but with little co-ordination. The main goal of the workshop will be to bring together leading scientists in the field of pollen-climate reconstruction to undertake for the first time a comprehensive 'bench test' of all of the ~10 main numerical methods currently in use. This bench-test will then be used to understand the performance of each model under different circumstances, and to then make recommendations for use and future development. The workshop is particularly timely given new methodological innovations such as Bayesian statistics, and the rapidly increasing availability and quantity of pollen data thanks to public databases such as Neotoma. Particular attention is paid to seasonally resolved reconstructions, records of precipitation as well as temperature (incl. cloud cover), and uncertainties & error estimates.

Project Leaders

Basil Davis

, Institute Of Earth Surface Dynamics, Faculté Des Géosciences Et L'Environnement, Université De Lausanne, Batiment Géopolis, Quartier Mouline, Lausanne CH1015, Switzerland