Scientific research and northern development   /   Reed, J.C.
Arctic, v. 15, no. 1, Mar. 1962, p. 3-8, ill.
ASTIS record 9862

Comments on research in Canada and Alaska, and on resource development as dependent on research: the renewable, and non-renewable resources, also such non-expandable resources as geographic location, ice, snow, etc. Contributions of the Canadian and U.S. Governments, universities, and private industries are outlined.

Ice observations by the Tiros II satellite and by aircraft   /   Wark, D.Q.   Popham, R.W.   Dotson, W.A.   Colaw, K.S.
Arctic, v. 15, no. 1, Mar. 1962, p. 9-26, ill., figures
ASTIS record 9863

Discusses selected TIROS II photography in connection with simultaneous visual and photographic aerial coverage of Gulf of St. Lawrence ice conditions in Jan. and Mar. 1961. The narrow-angle camera and the 48 inclination of the orbit tended to limit the reconnaissance to the southern fringe of winter sea-ice, though results suggest the feasibility of satellite photography for reconnaissance in the Arctic.

Freshwater plankton Crustacea of the Colville River area, northern Alaska   /   Reed, E.B.
Arctic, v. 15, no. 1, Mar. 1962, p. 27-50, ill., 1 map
ASTIS record 9864

Reports study of Microcrustacea from 200 water bodies, collected during the summer of 1955. Twenty-two species of Cladocera, 29 Copepoda and six larger forms were identified. Some species characteristic of lakes or pools are separated. Surface temperatures ranged from 0.5 to 20.5 C. Chemical determinations of 48 water bodies include chloride, calcium, bicarbonate and oxygen. Similarities with Siberian and other high latitude forms are noted.

"Whale Island" and the Mackenzie Delta : charted errors and unmapped discoveries, 1789 to 1850   /   Bredin, T.F.
Arctic, v. 15, no. 1, Mar. 1962, p. 51-65, ill., figures
ASTIS record 9865

Presents evidence that this island in Mackenzie Bay, northern Canada, on which Mackenzie camped in 1789 is the Garry Island at 69 29 N, 135 40 W where Franklin camped in 1825. Whale Island was described and drawn by Mackenzie. From his description, which did not agree with his drawing, it was mapped (at approx. 69 07 - 69 14 N) by Franklin who did not see the island. When aerial photography of 1939-1945, revealed the area to be delta country, the island was removed from the charts and its name rescinded, on the theory that is had been engulfed by the growing delta. This theory is refuted and the identify of Whale as Garry Island established by observations of W.J.S. Pullen in 1850, who did not however, chart the delta. Also treated in Beaver 1963, no. 294, p 54-55.

Radiocarbon-dated postglacial delevelling in northeast Greenland and its implications   /   Washburn, A.L.   Stuiver, M.
Arctic, v. 15, no. 1, Mar. 1962, p. 66-73, figures, table
ASTIS record 9866

Reconstructs the postglacial emergence from radiocarbon dating, at the Yale Geochronometric Laboratory, of shells and driftwood collected in the Mesters Vig area. Localities and altitudes at which the specimens were collected, species of the shells, and radiocarbon ages are tabulated, and the ages plotted against altitude. The evidence indicates that the area has been deglaciated since 9000-8500 B.P., and that the deglaciation is closely related in time and effect to the Hypsithermal. The emergence, primarily isostatic, decreased from an initial rate of 9 m/100 yrs to approx. 0.6 m/100 yrs in 6000 BP and, possibly, as little as 7 cm/100 yrs since then. A local till-like material was determined, from the shells, to be an emerged fiord-bottom rather than glacial deposit.

Glacial geology and geomorphology of the Sortehjorne area, East Greenland   /   Pessl, F.
Arctic, v. 15, no. 1, Mar. 1962, p. 73-76, figure
ASTIS record 9890

Reports studies in 1959 and 1961 of glacial features in five valleys of this area (approx. 72 N, 24 W) near Mesters Vig. Moraines, erratics, striae, kame terraces, emerged marine deltas, and glacial control of drainage patterns are described. Evidence from these features indicates that: during maximum glaciation, the ice margin extended considerably beyond the present coastline; the higher peaks were nunataks; deglaciation was primarily by lateral thinning and downwasting; the sea was at least 75 meters above its present level; a minor readvance of the glaciers occurred in recent time; and the isostatic adjustment of the land caused rejuvenation of the streams, with extensive canyon cutting.

Army ice cap swing takes 22 days for round trip of 276 miles   /   United States. Army. Polar R & D Center. Public Information Office
Arctic, v. 15, no. 1, Mar. 1962, p. 77-78, ill.
ASTIS record 9867

Describes monthly supply trips from Camp Tuto to Camp Century on the Greenland icecap. The supplies are carried in trains (swings) of 20-ton sleds pulled by low-ground-pressure D-8 and D-9 tractors. Tractor breakdowns and adverse weather conditions prolonged a winter 1961-62 trip, which is reported in some detail.

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