CGRG Bibliography of Canadian Geomorphology
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Author : Bryson, R.A. and Wendland, W.M.
Date : 1967.
Title : Tentative climatic patterns for some late glacial and post-glacial episodes in central North America
Publication : In: Life, Land and Water, Edited by: Mayer-Oakes, W.J., Department of Anthropology, University of Manitoba, Winnipeg,
Issue : Occasional Papers, No. 1
Page(s) : 271-298
Abstract
Reconstructs airmass regimes over North America (l) during the late glacial period ca 12 000 BP. (2) the period 9000-8000 BP. (3) 5000-3500 BP. Using the technique developed by the authors which delineates air mass boundaries and fronts by reference to boundaries of biotic communities maps are presented for each period showlng mean frontal positions and circulatory patterns. During the late glacial period the upper westerlies were strong along 40-45° in summer while winters were warmer than present over the U.S. The authors consider it inconceivable that the Arctic Ocean should have been ice-free or even partially open. Changes to Boreal conditions (Period 2) were abrupt and the resulting climatic and vegetational patterns are described. At this time subsident Pacific air extended further east than at present and grasslands were more extensive. Changes to early sub-Boreal time (Period 3) and subsequently are outlined. A consistent matching of climatic pattern and biotic evidence can be demonstrated for the past 10 000 years. This is particularly true of the Boreal forest in the sub-Arctic. (Arctic Bibliography (Arctic Institute of North America))
Bibliography of Canadian Geomorphology