不同积雪深度下地面温度与雪面温度的相关

Relation between Snow Surface and Ground Temperature at Different Snow Depths

基于新疆昌吉州5个国家气象站2008—2010年积雪深度大于等于0 cm的实测地面温度与雪面温度，对0 cm地面温度（含最高、最低）、雪面温度（含最高、最低）及云量、日照时数、雪深进行统计分析，找出不同积雪深度下地面温度与雪面温度的关系，并以阜康市天池气象站2011年所有积雪日数据对关系模型作检验。结果显示：地面温度与雪面温度的关系有3个雪深分层：5 cm以下、6~40 cm和40 cm以上，积雪深度为0~5 cm时，地面温度与雪面温度差值很小，受雪深及天气条件影响明显，雪深6~40 cm，主要受雪深影响，雪深超过40 cm，地面温度趋于定值。

Based on the observation data of ground and snow surface temperature from five weather stations at Changji from 2008 to 2010, the 0 cm maximum and minimum ground and snow surface temperature, cloudiness, sunshine duration, and snow depth dada are analyzed. The relation between snow surface and ground temperature at different snow depths is studied, and the relation model is verified with the snow depth data in 2011 from Tianchi Station. The results indicate that there are three snow depth demarcations in the relation of ground and snow surface temperature： 5 cm, 6 to 40cm, and greater than 40 cm. When the accumulated snow depth is between 0 to 5 cm, the ground temperature differs from snow temperature, obviously influenced by snow depth and weather conditions; when the snow depth is between 6 to 40 cm, the ground temperature is mainly influenced by snow depth; when snow depth is greater than 40 cm, the ground temperature tends to be unchanged.