The influence of continental ice sheets on the climate of an ice age.

S. Manabe, A. J. Broccoli

Research output: Contribution to journalArticle

349 Scopus citations

Abstract

The climate influence of the land ice that existed at 18k yr BP is investigated by use of a general circulation model of the atmosphere coupled with a static mixed layer ocean. In the Northern Hemisphere the tropospheric flow field is strongly influenced by the Laurentide ice sheet and features a split flow straddling the ice sheet, with a strong jet stream forming the southern branch. The 18k yr BP ice sheets have very little influence upon atmospheric temperature and SST in the S Hemisphere. Hydrologic changes in the model climate are also found, with statistically significant decreases in soil moisture occurring in a zone located to the south of the ice sheets in N America and Eurasia. -from Authors

Original languageEnglish (US)
Pages (from-to)2167-2190
Number of pages24
JournalJournal of Geophysical Research
Volume90
Issue numberD1
DOIs
StatePublished - Jan 1 1985

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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