Increased interest in offshore hydrocarbon exploration in Arctic waters raises concern regarding liquid waste management from drilling operations. The typical sources of process liquid waste from exploratory drilling operations is described and data on the quantity and quality of liquid waste discharges is provided from monitoring at two offshore sites. The chemical and toxicological characteristics of the waste fluids indicate that a potential exists for water pollution in specific circumstances. However, close process control to reduce the quantities of waste fluid generated and judicious selection of drilling mud additives should prevent the occurrence of significant water pollution problems from waste fluid disposal at exploratory Arctic offshore drilling operations.
A few problems elucidated ... and new questions raised by recent Dorset finds in the north Baffin Island region
Arctic, v. 32, no. 1, Mar. 1979, p. 22-32, ill., map
ASTIS record 2164
Several recent discoveries, made possible by exceptional conditions of preservation at the Nunguvik site (North Baffin Island), provide new information, among others, on the kayak and sled of the Dorset culture, and suggest that the Dorset people used skis. An engraved bone plate from the Dorset site of Sannirajaq (Hall Beach) pictures, associated with a caribou, an enigmatic object variously interpreted as a sled, a trap for caribou, or a wicker-trap.
Describes the design and installation of a type of geodesic dome shelter to be used as living quarters for researchers on Mt. Logan, Yukon Territory. Information on the selection and description of the canopy, the foundations, installation, and performance of the structure is included.
The heavy metals chromium, zinc, cadmium and lead have accumulated in the sediments around some offshore oil rigs. Oil production is now being considered for some nearshore sections of the Beaufort Sea coast. During winter in the Beaufort Sea, heavy metals in the sediments will not be dispersed; the under-ice currents are slow, and some of the bottom is coverd by very saline, relatively stagnant water. Heavy metals in the sediments can probably be assimilated by epibenthic animals in the nearshore region, and then transferred through the food chain to natives who partially subsist on marine animals.
Domestic or subsistence fisheries of the eastern James Bay Cree were studied, mainly in Fort George, by direct observation. These fisheries were characterized by large numbers of participants, low catches per day and per fisherman, but high catches per length of net used, as compared to commercial fisheries. Most stocks appear lightly utilized, but in the vicinity of larger settlements there is evidence that some stocks are overfished. The total catch may be increased by distributing the fishing effort more evenly over a larger area. Fish resource base of the region appears suitable for supporting local economic development with respect to recreational fisheries and native-run commercial fisheries for the local market, as well as maintaining the domestic fishery.
Eleven spider species were collected from the Mestersvig district ... of which eight were trapped on the dune sands of Noret .... Pardosa glacialis Thor. was encountered most often in the general collection and was also common on the dunes. ...
A 1977 tundra fire in the Seward Peninsula, Alaska removed the vegetation mats surrounding and covering several stone-lined pits and a cache pit near the east shore of Imuruk Lake. Bones and artifacts which had been covered by and incorporated into these vegetation mats were strikingly revealed in situ. None of these objects were found during a brief reconnaissance of these sites by the author and others in 1973. These observations supplement the original interpretation of the sites and suggest benefits from locating and examining archeological sites in areas of relatively recent tundra fire.
Trace rainfall is defined as rainfall under 0.2 mm (or 0.05 in) which cannot be measured by conventional types of rain-gauges. In the Canadian Arctic Islands, trace rainfall is commonly reported by the government weather stations or by researchers in the field. Frequent occurence of such events is attributed to the moisture provided by the open water areas and melting snow (Barry and Hare, 1974). To date, however, the measurement of trace rainfall has not been attempted. In view of low rainfall in the High Arctic, the exclusion of trace rainfall can possibly cause an underestimation of summer precipitation (Courtin and Labine, 1977; Jackson, 1961). The purpose of the present study is to determine the magnitude of several trace rainfall events using a simple device modified after one designed to study fog (Burton, 1971).