Experimental observation on the characteristics of the near-surface turbulence over the Antarctic ice sheets during the polar day period

Based on the ultrasonic anemometer/thermometer data in the East Antarctic coastal area ice sheets obtained first by Chinese scientists, turbulent intensity, kinetic energy and sensible heat of turbulence, surface roughness height drag coefficient and normalized variation were calculated and analysed using the eddy correlation method. The results show that the values of roughness height and drag coefficient are 4.3×10 -4 m and 1.8×10 -3 , respectively. These turbulent parameters have apparent diurnal variations.