Charts: Global Glacier Mass Balance 1930 - 2013
by World Glacier Monitoring Service (WGMS)
Global averages of observed mass balances from 1930 to 2013.
TOP: Annual averages of geodetic and glaciological balances (click here to read about the differences between these two methods for measuring glaciers and ice caps (GIC) mass-balance) are shown together with the corresponding number of observed glaciers.
BOTTOM: Cumulative annual averages relative to 1960.
