Lake Ice Modelling and the Paleoenvironment of the Eastern Canadian Arctic over the Last 21 ka: A P.A.L.E./LAII/S.I.M.S

John T. Andrews    andrewsj@spot.colorado.edu (Principal Investigator current)
Gifford H. Miller (Co-Principal Investigator current)
           
Abstract    

     Abstract    OPP-9614667  ANDREWS  UNIVERSITY OF COLORADO     This project
     is a joint project between Andrews and colleagues at the University of Colorado
     and Pielke and colleagues at Colorado State University.  It is designed to
     examine the role of lake ice in the arctic climate/environmental system.  The
     duration and thickness of lake ice cover in the Eastern Canadian Arctic is
     thought to be a critical component in the rates of sediment accumulation and
     primary productivity.  The work of this project will link current modeling
     efforts on the formation and extent of the annual lake cycle, a remote sensing
     component which will map out the temporal and spatial variability of lake ice
     on today's landscape, and a paleo component based on data from GISP2, Genesis
     modeling, and lake records accumulated previously by the PIs.  The PIs plan to
     use present-day climate data from stations on Baffin Island to forecast lake
     ice histories for extreme years and for average conditions.  These estimates
     will be compared with the results of mapping the pattern of lake ice
     disappearance and growth from satellite imagery.  The final element will be to
     use the lake ice model to generate a series of histories of lake ice given
     input from a variety of paleo perspectives.