The annual glacier mass balance of Hallstaetter Glacier in Dachstein area is measured since 1.10.2006 with the direct glaciological method in the fixed date system (1.10. to 30. 09. of the following year). The accumulation of snow is measured by determination of the water equivalent in 6 snow pits, the ice ablation is measured with 15 stakes drilled into the ice. Results are the annual net mass balance in kg, the total accumulation

and ablation, the glacier area and the portions of the area which are subject to ablation and accumulation, the elevation of the equilibrium line and

the specific mass balance in kg/m2 (= mm w.e.). The accumulation during the winter is determined by the 1 May. The project homepage is located at http://imgi.uibk.ac.at .

The project is funded by the Amt der Oberoesterreichischen Landesregierung and the Energie AG. The measurements are carried out by the Institute of Meteorology and Geophysics of the University of Innsbruck and the company Blue Sky in Gmunden, Austria.