Craven operates radio to transmit and receive traffic from Thule and Atka
Dan Krinsley U.S.G.S., checks thermocouple prior to ground installation
Drop sounding through ice of Centrum Lake by Dan Krinsley, U.S.G.S.
Filling portable heaters with fuel for temperature measuring. Prevent freezing
Exploring moat at Centrum Lake.
Thermistor station is mounted in pneumatic life raft at Centrum Lake.
Surveying party also measures temperatures at each station on Centrum Lake.
Dan Krinsley observing development and thawing rate of moat at Centrum Lake
Measuring ice thickness of Centrum Lake in thawing condition.
Resupply of base camp at Centrum Lake by parachute air drops
Reading deflectometers installed in sea ice north of North Star Bay near Thule
Hauling equipment from aircraft in snow on Lake over snow compacted road
Tests on icebreaker, launching special balloons and measuring ozone layer
ONR balloon launched from U.S.S. Atka with radio sound equipment
Tracked weasel transporting personnel and equipment through water and moat
Dan Krinsley reading meter to determine temperatures at varying depths
Celebrating July 4, 1960 at Centrum Lake Base Camp. Anemometer and weather vane
Loading equipment aboard C-130 test aircraft to terminate operations at Polaris
Twenty-four hour watch used by MacMillan
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Last updated: 12/08/2023