Welcome to PMIP2

Overview

The Paleoclimate Modeling Intercomparison Project (PMIP) is a long standing initiative endorsed by both WCRP and IGBP. It has provided an efficient mechanism for coordinating paleoclimate modelling activities that provide valuable information on the mechanisms of climate change, the identification of key feedbacks operating in the climate system, and the capability of climate models to reproduce climates different from today. Thanks to the production of data syntheses and to rigorous model-data comparisons, the mid-Holocene climate (MH: ca 6000 yr BP) and the Last Glacial Maximum (LGM, ca 21,000 yr BP) are now recognised as benchmark periods for climate models.

Seventeen modelling groups participated in simulations of these time periods with atmosphere-only models (PMIP1), and twelve groups in the second phase of the project using ocean-atmosphere or ocean-atmosphere-vegetation models (PMIP2). Several hundred scientists were involved in running and analysing the simulations, in producing paleodata sets for model evaluation, and in model-model and model-data comparisons. PMIP has produced over 100 publications documenting this work.

Research Focus

Drawing on our experience during the past 10 years, PMIP will continue to use simulations made with state-of-the-art models and paleoenvironmental data syntheses together.

    • Evaluation of Earth System Models for mid-Holocene and LGM.
    • Interglacials and warm periods, with first emphasis on the Last Interglacial and the mid-Pliocene.
    • Abrupt climate changes, with first emphasis on thresholds in the hydrologic cycle and on the deglaciation.
    • Characterization and understanding of uncertainties, for helping to quantify the reliability of future projections.