A snow temperature profile was installed at Siple Dome at the site of the automatic weather station during January 1999.
Poitive depths are above the snow at the time of installation.
Two junction thermopiles are used to measure the temperature difference between adjacent levels. The temperature differences are measured by the weather stationn using a differential multiplexor and a high gain amplifier with high common mode rejection. The data are updated at 10 minute intervals and the satellites receive about two observations every hour. Past values are not transmitted because the snow temperatures usually do not change rapidly. The data series to be presented will start on 1 February 1999 and end on 31 July 2000.