On the Temperature Distribution of Glaciers in China
On the Temperature Distribution of Glaciers in China
复制标题
DOI：
10.3189/s002214300000945x
复制
发表时间：
1990
影响因子：
3.4
通讯作者：
Maohuan Huang
中科院分区：
文献类型：
--
作者：
Maohuan Huang
迄今为止，中国已经测量了22个冰川的温度。建议将烧蚀区上部活动层底部的最低温度（T min）作为特征温度，并与年平均气温（T a）进行比较。讨论了不同冰川的温度分布。极地型冰川温度较低，最小温度< - 10°C，最小温度接近Tv，总体上基底偏冷；- 10°C < T min < - 1.0°C， T min高于Tv的亚极地型冰川通常位于消融区中部以下；温度min < - 1.0°C的温带型冰川，由于冬季积雪较薄，常年高于温度a和近地表亚冰点层。
Abstract To date, the temperatures of 22 glaciers in China have been measured. It is suggested that the minimum temperature at the base of the active layer in the upper part of the ablation area (T min) be used as a characteristic temperature and compared with mean annual air temperature (T a). The temperature distribution is discussed for various glaciers. Polar-type glaciers are characterized by low temperatures with T min < −10°C, T min close to Tv and a cold base in general; sub-polar-type glaciers with −10°C < T min < −1.0°C, T min higher than Tv and a melting base are usually located beneath the middle of the ablation area; and temperate-type glaciers with T min < −1.0°C, certainly higher than T a and a sub-freezing near-surface layer in the ablation area all the year round, because the snow cover is thinner in winter.