冰川积累量测量和计算方法研究

Studies of Measurement and Calculation Methods of Accumulation on Glacier No.1

Snow depth measurement at the stakes on glacier No.1 can indicate the snow distribution along the stake line. The accumulation calculated by the extensive snow survey at the stakes(method A) represents the area-averaged accumulation pattern. Intensive snow survey of 5 m resolusion along the stake line and other 10 additional routes (method B), which needs more manpower and working-time, clearly shows the accumulation pattern on the glacier. Therefore this approach is greatly useful for asseccing spacial representation of the stakes and snow pits for selection of proper locations of snow stakes for glacier mass balance calculation. Snow survey at certaine selected points in every altitute zones (method C) clearly reflects the distribution of accumulation along with elevation. And both of the number of point measurement and its distribution has an important effect on the accuracy of the accumulation calculated by method C.