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冰川温度是冰川最重要的物理参数之一。2009~2011年间,在北极新奥尔松地区Austre Lovénbreen冰川上B_2、E_2和F点开展了20m浅层冰温监测工作。结果表明,三点冰温曲线在春季5月表现为冷季型,秋季9月属于暖季型。在9m深度以下,E_2点冰温总是要比B_2和F点低。三点处冰温活动层下界的深度都为14m,冰温年平均值分别为-2.76、-3.23和-2.84℃。随着海拔的升高,B_2和E_2点之间20m深处冰温递减率(0.3℃·100m-1)要大于10m深处的(0.15℃·100m-1)。三点在10m深处冰温比近地层气温要高1~4℃,这也显示了冰川融水再冻结释放的潜热导致冰川升温的重要性。
Glacier temperature is one of the most important physical parameters of glaciers. During 2009-2011, a 20-m shallow ice temperature monitoring project was carried out at B_2, E_2 and F on the Austre Lovénbreen glacier in the New Orleans region of the Arctic. The results showed that the three-point ice temperature curve was cold-season in May and warm-season in September. Below 9 m depth, the E 2 point ice temperature is always lower than B 2 and F points. The depth of the lower bound of the active ice layer at 3 o’clock is both 14 m and the average annual ice temperature is -2.76, -3.23 and -2.84 ° C, respectively. With the elevation increasing, the decreasing rate of ice temperature (0.3 ℃ · 100m-1) at a depth of 20m between B_2 and E_2 was larger than that at a depth of 10m (0.15 ℃ · 100m-1). At 3 o’clock in the depths of 10 m, the ice temperature is 1 to 4 ° C higher than the temperature of the sublayered. This also shows the importance of the latent heat released by the re-freezing of the glacier melt leading to glacier warming.