. The Canadian field-naturalist. N W 600 Miles Figure la. Light Ice Year Information derived from the National Naval Ice Center (). Maximum Retreat of tine Pack Ice on 18 September 1983 Maximum Retreat of the Pack Ice on September 18, 1983 172- 1G2- 152- 142- IST Hi"- " '--' V \ J Beaufort Sea. N W Figure lb. Heavy Ice Year information derived from the National Naval Ice Center (). as in the Chukchi and Beaufort seas (Ljungblad et al. mainder of the flight tracks (Figure 2). Information '< 1986; Moore and Clarke 199
. The Canadian field-naturalist. N W 600 Miles Figure la. Light Ice Year Information derived from the National Naval Ice Center (). Maximum Retreat of tine Pack Ice on 18 September 1983 Maximum Retreat of the Pack Ice on September 18, 1983 172- 1G2- 152- 142- IST Hi"- " '--' V \ J Beaufort Sea. N W Figure lb. Heavy Ice Year information derived from the National Naval Ice Center (). as in the Chukchi and Beaufort seas (Ljungblad et al. mainder of the flight tracks (Figure 2). Information '< 1986; Moore and Clarke 1992). Incidental sightings was recorded on percent ice coverage within about 1- of Polar Bears and their behavior were recorded along 2 kilometers of the aircraft at each position update north-south transects and off transects along the re- (once about every 5 minutes) and at each sighting loca-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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