位于冰川中间的冰碛。当两条或两条以上冰川相遇会合后,其中相邻的两道侧碛汇合在一起合并而成的冰碛。冰川消融后,常形成沿冰川谷延伸的中碛堤(垅)。
沿冰川中部而下的灰色条纹被称为中碛,它是由于两条冰河在下坡时汇合在一起而形成的。
The grey stripe down the middle of the glacier is called a medial moraine. It is formed when two glaciers flow into each other and join on their way downhill.
在总的热量支出中,平均只有7 8%的热量可以用于表碛下部的增温和向深层传导。
Of the total heat income, only 7.8% is used for temperature increase of the deeper part of the debris cover and conduction downwards.
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