Ablation from an Antarctic Ice Surface
摘要
A study has been made of the ablation of ice (mainly evaporation at subzero temperature) over a blue ice surface of the Antarctic ice cap near Mawson. The observations cover an eight year period broadly and one year in detaiL The evaporation:rate has been eompared with concurrent measurements of temperature, wind speed, humidity and radiation in order to obtain the relative influence of these parameters. The results suggest a simple relationship of the subzero evaporation rate to the air.temperature, relative humidity and wind speed, radiation being relatively unimportant. As the temperature of the ice approaches zero the amount of incoming radiation and the process of melting become the predominant factors influencing the ablation rate. I.