The glacier mass balance of Jamtalferner has been measured annually since 1988/1989 with the direct/glaciological method. Winter mass balance has been determined for 1 May in all years. The mass balance records are complemented by precipitation measurements at a gauge close to the glacier tongue and climate data recorded at the village of Galtür. The project is supported by the Federal Government of Tyrol. Research results are also provided within the Environmental Education Centre Jamtal (http://www.umweltbildung-jamtal.info/). Jamtalferner is a LTER site and part of WMO's Global Crosphere Watch watch program as well as a WGMS benchmark glacier.