Geodetic observations of short-time-scale changes in glacier flow at Helheim and Kangerdlugssuaq Glaciers, East Greenland

M. Nettles, P. Elosegui, T. Larsen, J.L. Davis, G.S. Hamilton, L.A. Stearns, M.L. Andersen, J. de Juan, E. Malikowski, I. Gonzalez, M. Okal, B. Johns, G. Ekstrom, A. Ahlstrøm, L. Stenseng, S.A. Khan, K.M. Schild, R. Forsberg, S.A. Veitch