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.