Surface Movement Research of Arctic Glaciers Using GPS Method

We introduce GPS tracking station and the field GPS work in summer from 2005 to 2010,and give the yearly horizontal and vertical velocities on the surface of the two glaciers,which indicates that the horizontal velocity is from 5.277～8.256 m·a-1 on glacier Pedersenbreen,and from 0.360～3.986 m/a on glacier Austre Lovénbreen.The velocity of surface altitude change is from-3.4～-71.8 cm/a on glacier Pedersenbreen and from +9.6～-115.8 cm/a on glacier Austre Lovénbreen.It shows that the mass balance in two glaciers is negative,and the two glaciers are increasingly melting.