HR: 0800h
AN: PP11B-1445    [Abstracts]
TI: Creation and Implementation of Extremely High Resolution T170 ccm3 Animations to Analyze Hourly ''Weather'' Fields of the Last Glacial Maximum
AU: * Unterman, M B
EM: Matthew.Unterman@duke.edu
AF: Duke University, 103 Old Chemistry PO BOX 90229, Durham, NC 27708 United States
AU: Crowley, T J
EM: Tcrowley@duke.edu
AF: Duke University, 103 Old Chemistry PO BOX 90229, Durham, NC 27708 United States
AB: Properly interpreting past climate is essential in understanding and predicting future climate change. Recent model studies aimed at clarifying past climate regimes have been confined to daily or monthly outputs or output means as increasing temporal resolution generally increases error. Here however, LGM outputs have been increased to every model hour to gain an understanding of the physical structures of those fields that may be altered at the hourly time scale. High-resolution 512x256 animations of temperature, convective precipitation and surface winds have been developed to track certain structures originally blurred by monthly means, such as model derived low-pressure systems, and their interaction between North Atlantic sea ice and the ice sheets over North America and Northern Europe. A semi-stable warm pool in our December output, extends to almost 40 degrees north on the east coast of North America, and may have great implications for future tree migration capacity and the predicated climate shifts of this century (McLachlan et al., 2003).
DE: 1615 Biogeochemical cycles, processes, and modeling (0412, 0414, 0793, 4805, 4912)
DE: 1616 Climate variability (1635, 3305, 3309, 4215, 4513)
DE: 1620 Climate dynamics (0429, 3309)
DE: 1694 Instruments and techniques
DE: 3238 Prediction (3245, 4263)
SC: Paleoceanography and Paleoclimatology [PP]
MN: Fall Meeting 2005