Paleoclimate Model Intercomparison Project (PMIP)

Sylvie Joussaume (

This international project involves about 18 modeling groups (USA, Canada, UK, Germany, France, Australia, Japan and Korea) (Joussaume and Taylor, 1995). This project is endorsed by both the International Geosphere Biosphere Project (under PAst Global ChangES) and the World Climate Research Program (within the Working Group on Coupled Models) and its aims are to evaluate climate models under paleoclimate conditions and improve our understanding of past climate. Following an initial phase during which boundary conditions were defined and simulations were completed, the PMIP participants have met every two years since 1995 in order to discuss the results. These workshops have fostered cooperation and forged collaborations among groups working on the two PMIP periods. Discussions at the workshops were not limited to the PMIP experiments themselves, but also to the many complementary numerical experiments performed for the mid Holocene and last glacial maximum climatic periods. This has helped to enhance our knowledge as is reflected within this report of the third PMIP workshop.

Three PMIP experiments have been defined : one for the mid Holocene, 6000 years BP, and two experiments for the last glacial maximum (LGM), 21,000 years BP (18 000 radiocarbon date (Bard, et al., 1990)), either with atmosphere alone models or with atmosphere models coupled to surface ocean models.

Joussaume, S. and K. E. Taylor, 1995: Status of the Paleoclimate Modeling Intercomparison Project (PMIP). Proceedings of the first international AMIP scientific conference. WCRP Report, 425-430.

Braconnot, P., ed., 2000: PMIP, Paleoclimate Modeling Intercomparison Project (PMIP): Proceedings of the 3rd PMIP workshop, Canada, 4-8 October 1999, WCRP-111, WMO/TD-1007, 271pp.

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Updated 4/24/03