HR: 1340h
AN: PP43C-1532 INVITED    [Abstracts]
TI: PRISM3 Global Paleoclimate Reconstruction: A Global Warming Data Set
AU: * Dowsett, H J
EM: hdowsett@usgs.gov
AF: U.S. Geological Survey, 926A National Center, Reston, VA 20192, United States
AU: Chandler, M A
EM: mac59@columbia.edu
AF: Columbia University-CCSR/GISS, 2880 Broadway, New York, NY 10025, United States
AU: Cronin, T M
EM: tcronin@usgs.gov
AF: U.S. Geological Survey, 926A National Center, Reston, VA 20192, United States
AU: Dwyer, G S
EM: gsd3@duke.edu
AF: Duke University, Division of Earth and Ocean Sciences, Nicholas School of the Environment and Earth Sciences, Durham, NC 27708, United States
AU: Haywood, A M
EM: A.M.Haywood@leeds.ac.uk
AF: University of Leeds, School of Earth & Environment, Leeds, LS2 9JT, United Kingdom
AU: Hill, D J
EM: dahi@bas.ac.uk
AF: British Antarctic Survey, Geological Sciences Division, High Cross, Madingley Road, Cambridge, CB3 0ET, United Kingdom
AU: Robinson, M M
EM: mrobins3@gmu.edu
AF: U.S. Geological Survey, 926A National Center, Reston, VA 20192, United States
AU: Salzmann, U
EM: usa@bas.ac.uk
AF: British Antarctic Survey, Geological Sciences Division, High Cross, Madingley Road, Cambridge, CB3 0ET, United Kingdom
AU: Williams, M
EM: mri@leicester.ac.uk
AF: University of Leicester, Department of Geology, University Road, Leicester, LE1 7RH, United Kingdom
AB: The Pliocene Research, Interpretation and Synoptic Mapping (PRISM) Project provides a conceptual model and synoptic view of the earth during the last interval considerably warmer than modern (3.3 to 3.0 Ma) through reconstruction of sea-surface temperature (SST) and other paleoenvironmental parameters. The first PRISM reconstruction, with its foundation in a global network of paleontological analyses, was completed in the early 1990s. Since then, several significant revisions have been released culminating in the PRISM2 data set. The primary goal of PRISM remains a better understanding of the Earth's climate system during the mid-Pliocene, and to that end, includes the development of digital data sets for use with climate models. The new PRISM3 reconstruction, slated to be released early in 2008, has revised SST fields based upon integration of previous and new faunal and floral analyses with new geochemical proxies and biomarkers, a revised vegetation/land cover data set utilizing the BIOME 4 vegetation classification scheme, 3-dimensional land ice distribution based upon ice-sheet model experiments, new sea level estimates based upon stable isotopes and bottom water temperatures, and revised sea-ice distribution. A deep ocean temperature reconstruction, PRISM3D, adds a 3- dimensional component, which can be used for initiating coupled ocean-atmosphere GCM simulations. PRISM3 is a collaborative effort between the U.S. Geological Survey (USGS), National Science Foundation (NSF), National Aeronautics and Space Administration (NASA), British Antarctic Survey (BAS), and several national and international academic institutions (Columbia University, Duke University, George Mason University, University of Leeds and University of Leicester).
DE: 4928 Global climate models (1626, 3337)
DE: 4954 Sea surface temperature
DE: 4999 General or miscellaneous
SC: Paleoceanography and Paleoclimatology [PP]
MN: 2007 Fall Meeting