For temperature measurement, three holes in Glacier No. 1 in the （?）rümqi River headwaters were drilled using hot water-driller in July 1986 for setting sensors with an accuracy of ±0.05 K. They are T1 （3...For temperature measurement, three holes in Glacier No. 1 in the （?）rümqi River headwaters were drilled using hot water-driller in July 1986 for setting sensors with an accuracy of ±0.05 K. They are T1 （3854 m a.s.1.）, and T2 （3928 m a. s. 1.） in展开更多
During the ablation period, the melt-water on the surface of percolation zone of a glacier percolates down through the snow layer when it cools and freezes, the latent heat released causes the temperature of metres of...During the ablation period, the melt-water on the surface of percolation zone of a glacier percolates down through the snow layer when it cools and freezes, the latent heat released causes the temperature of metres of the snow layer to rise to 0℃. However, at the end of ablation period melting stops, the snow layer through which melt-water permeated begins to release heat to the air and the temperature on the surface of snow layer decreases. As a result, the melt-water in the snow layer展开更多
Ⅰ. INTRODUCTIONIn the research of glaciology a glacier is divided into dry-snow, percolation, superimposedice and ablation zones according tothe water-thermal regime of the active layer of a glacier. Among them the p...Ⅰ. INTRODUCTIONIn the research of glaciology a glacier is divided into dry-snow, percolation, superimposedice and ablation zones according tothe water-thermal regime of the active layer of a glacier. Among them the percolation zone is a zone where exchange, of energy and matter between en-展开更多
文摘For temperature measurement, three holes in Glacier No. 1 in the （?）rümqi River headwaters were drilled using hot water-driller in July 1986 for setting sensors with an accuracy of ±0.05 K. They are T1 （3854 m a.s.1.）, and T2 （3928 m a. s. 1.） in
文摘During the ablation period, the melt-water on the surface of percolation zone of a glacier percolates down through the snow layer when it cools and freezes, the latent heat released causes the temperature of metres of the snow layer to rise to 0℃. However, at the end of ablation period melting stops, the snow layer through which melt-water permeated begins to release heat to the air and the temperature on the surface of snow layer decreases. As a result, the melt-water in the snow layer
文摘Ⅰ. INTRODUCTIONIn the research of glaciology a glacier is divided into dry-snow, percolation, superimposedice and ablation zones according tothe water-thermal regime of the active layer of a glacier. Among them the percolation zone is a zone where exchange, of energy and matter between en-
