AIRPHOTO PATTERN RECONNAISSANCE OF NORTHWESTERN CANADA. VOLUME 1
PURDUE UNIV LAFAYETTE IN
The report presents the results of a reconnaissance survey of selected sites in northern Canada during the summer of 1951 conducted by the Purdue Canadian Arctic Permafrost Expedition and sponsored by the U. S. Army Corps of Engineers. Field data were obtained on soils and permafrost, and airphoto patterns of those sites where aerial photographs were taken for study are described.