1.1.1A Winter Stations 0607

Name:

MAWSON
Coordinates: 67°36'S, 62°53'E
Region: Mawson Station is located on an isolated outcrop of rock on the coast, at the edge of the Antarctic plateau in Mac.Robertson Land. The plateau surface in the coastal region is mostly blue ice occasionally covered by light snow in winter and spring. The snow is deepest in valleys or on steep leeward slopes, while the higher ridges are invariably swept clear. Heavy melting occurs during summer and melt-water collects in well-defined streams and lakes. Although not necessarily deep they are a hazard to travellers, especially those in fast-moving transport. Further inland from the coast the surface is mainly snow or white ice with occasional blue ice patches. The mean annual windspeed at Mawson is almost 40 km/h although gusts measure well above 180 km/h. Sixteen kilometres inland the wind is much stronger. The winds usually increase after sunset and fall off around midday. Winds are predominantly south-easterly moving towards the west with the onset of bad weather. Mawson experiences long periods of fine weather broken at intervals by periods of high wind and heavy drifting snow. Temperatures range from 10°C to -36°C.
Date established: 1954
Date last examined: Occupied.
Purpose: All year operation.
Accommodation facilities, including food, fuel, etc: Accommodates 47 persons plus two hospital beds. Special antarctic blend fuel, aviation turbine fuel, synthetic low temperature engine and hydraulic oils, gear oils, glycol. Two 300Kw wind turbines which supply approximately 40 per cent of annual energy demand were installed in 2003.
Medical facilities: Doctor and surgery available.

Name: CASEY
Coordinates: 66°17'S, 110°32'E
Region: Casey is on the west coast of Law Dome, an almost circular ice cap 200 km in diameter rising to a height of 1395 m, 110 km inland. The regularly traversed routes on Law Dome are mostly crevasse-free, the exceptions being the steep regions of the coast eat of Cape Folger; the Peterson Glacier; the inflow into the Vanderford Glacier; and the eastern coast of Sparkes Bay at the end of the Loken Moraine. In summer, melt streams and soft snow in the low areas between Loken Moraine and the coast often form hazards for vehicles. Beyond the moraine the surface is comparatively smooth and featureless, with patchy blue ice and snow for several kilometres, gradually changing to neve upon which small to medium sastrugi are encountered. At the southern (inland) edge of the Law Dome ice cape, the elevation drops to 600 m in a wide valley extending from the Totten Glacier to the Vanderford Glacier. South of this valley the plateau continues to rise gradually, reaching an altitude of some 3650 m as the Russian station Vostok is approached. It is a featureless plateau and navigational competence is essential. Although the average wind speed at Casey is 30 km/h, the weather can be deceptively calm. When the wind direction turns to the east, blizzards can set in with very little warning and rapidly reach wind speeds in excess of 150 km/h. These winds can last for several days. occur at any time of the year and can make travel hazardous. Keep a constant watch to the east; when the horizon becomes fuzzy you have less than 30 minutes to take shelter before a blow arrives. The direction of strong winds over the Law Dome area is usually easterly providing a constant sastrugi direction which is often an aid to navigation in bad weather. The inland plateau is characterised by frequent, persistent strong wind and drift, especially during winter months. Temperatures recorded in the station area range from +9.2°C (January) to -41°C (July).
Date established: 21 December 1988 (construction commenced 1978)
Date last examined: Occupied.
Purpose: All year operation.
Accommodation facilities, including food, fuel, etc: Accommodates 54 persons. Special antarctic blend fuel, aviation turbine fuel, synthetic low temperature engine and hydraulic oils, gear oils, glycol.
Medical facilities: Doctor and surgery available.

Name: DAVIS
Coordinates: 68°35'S, 77°58'E
Region: Davis is on the edge of the Vestfold Hills, a triangular ice-free area approximately 400 km2 located on the coast of Princess Elizabeth Land. The hills are of low relief (maximum height 158 m) and are broken by valleys and penetrated deeply by fjords and lakes. They are bounded on two sides by the ice plateau and the Sorsdal Glacier. Numerous islands fringe the coast around Davis, up to 5 km offshore. Davis mean temperatures range from +2.9°C in January to -20.4°C in August, with recorded extremes of +13°C and -40°C. Long periods of relatively calm, fine conditions occur throughout the year. Winds are generally light; the yearly average is around 20 km/h. Violent winds and blizzards can commence with little warning, and gusts over 200 km/h have been recorded. At Platcha hut and other areas near the continental ice sheet, gale force (katabatic) winds regularly occur, even in otherwise fine weather. The effect diminishes significantly as distances of 5 km or more inland on the ice sheet are reached. Snow fall averages 78 mm/year, with the greater proportion of annual accumulation resulting from wind blown drift. Apart from several permanent ice banks, the hills are virtually snow free in summer and lightly covered in winter.
Date established: January 1957
Date last examined: Occupied.
Purpose: All year operation.
Accommodation facilities, including food, fuel, etc: Accommodates 65 persons. Fuel is special antarctic blend fuel, aviation turbine fuel, synthetic low temperature engine and hydraulic oils, gear oils, glycol.
Medical facilities: Doctor and surgery available.
This page was last modified on 12 August 2010.