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LGM Summer Climate on the Southern Margin of the Laurentide Ice Sheet: Wet or Dry?*
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Journal of Climate
- Article date:
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August 15, 2005
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Copyright informationCopyright American Meteorological Society Aug 15, 2005. Provided by ProQuest LLC. (Hide copyright information)
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ABSTRACT
Regional climate simulations are conducted using the Polar fifth-generation Pennsylvania State University (PSU)-NCAR Mesoscale Model (MM5) with a 60-km horizontal resolution domain over North America to explore the summer climate of the Last Glacial Maximum (LGM: 21 000 calendar years ago), when much of the continent was covered by the Laurentide Ice Sheet (LIS). Output from a tailored NCAR Community Climate Model version 3 (CCM3) simulation of the LGM climate is used to provide the initial and lateral boundary conditions for Polar MM5. LGM boundary conditions include continental ice sheets, appropriate orbital forcing, reduced CO2 concentration, paleovegetation, modified sea ...
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