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采用祁连山老虎沟12号冰川2009年RTK测量生成的数字高程模型(DEM),建立现代冰川表面横截面拟合的二次方程,结合差分GPS测量的冰碛垄形态,运用于祁连山摆浪河上游14号冰川和16号冰川全新世以来冰量变化的估算.结果表明:新冰期以来冰储量减少0.38 km3,小冰期以来14号冰川和16号冰川的冰储量分别减少0.016 km3和0.047 km3;根据祁连山全新世各个时期最大冰川范围的时间,估计了全新世以来14号和16号冰川冰储量的减少速率,新冰期以来为12.2×10-5~15.0×10-5km3·a-1,小冰期以来分别为4.0×10-5~5.3×10-5km3·a-1,11.75×10-5~15.7×10-5km3·a-1.
Based on the digital elevation model (DEM) generated by 2009 RTK measurement of 12 Laohugou glaciers in Qilian Mountains, the quadratic equation of modern glacier surface cross-section fitting was established. Combined with the moraine ridge morphology measured by differential GPS, the model was applied to the upper reaches of the Glacier 14 and Holocene 16.The results show that since the new glacial period, the amount of ice reserves decreased by 0.38 km3 and that of the No.14 and the No.16 glaciers decreased by 0.016 km3 and 0.047 km3 respectively since the Little Ice Age. According to Since the Holocene, the rate of decrease of glacier ice reserves of No.14 and No.16 since the Holocene has been estimated to be 12.2 × 10-5 ~ 15.0 × 10-5km3 · a-1 during the Holocene, Since it was 4.0 × 10-5 ~ 5.3 × 10-5km3 · a-1, 11.75 × 10-5 ~ 15.7 × 10-5km3 · a-1, respectively.