**PROVISIONAL DATA--SUBJECT TO REVIEW** "Year" is the balance year, the interval between the minimum glacier mass in the specified year and the minimum glacier mass in the previous calendar year. The winter season commences in the calendar year prior to the one indicated. All mass balance values are in meters of water equivalent. South Cascade Glacier Wolverine Glacier Gulkana Glacier YEAR bnet bwinter bsummer bnet bwinter bsummer bnet bwinter bsummer 1959 0.70 3.28 -2.58 1960 -0.50 2.21 -2.71 1961 -1.10 2.40 -3.50 1962 0.20 2.50 -2.30 1963 -1.30 2.23 -3.52 1964 1.20 3.25 -2.05 1965 -0.17 3.48 -3.65 1966 -1.03 2.47 -3.50 -0.78 1.64 -2.42 -0.06 0.95 -1.00 1967 -0.63 3.29 -3.92 -2.18 1.57 -3.75 0.12 1.12 -1.00 1968 0.01 3.00 -2.99 -0.88 1.85 -2.73 -0.04 1.57 -1.61 1969 -0.73 3.17 -3.90 -0.55 1.74 -2.30 -0.92 0.69 -1.60 1970 -1.20 2.41 -3.61 1.54 3.40 -1.86 0.46 0.71 -0.25 1971 0.60 3.51 -2.91 0.14 2.13 -2.00 0.35 1.29 -0.95 1972 1.43 4.27 -2.84 -1.56 0.86 -2.42 -0.31 1.08 -1.39 1973 -1.04 2.21 -3.25 0.26 1.61 -1.35 0.58 1.44 -0.86 1974 1.02 3.65 -2.63 -1.65 1.53 -3.18 -1.09 0.55 -1.64 1975 -0.05 3.06 -3.11 -0.22 2.54 -2.76 -0.23 1.12 -1.35 1976 0.95 3.52 -2.58 -1.21 0.98 -2.19 -0.92 0.96 -1.88 1977 -1.30 1.57 -2.87 1.39 4.25 -2.86 -0.21 1.39 -1.60 1978 -0.38 2.49 -2.87 0.46 3.39 -2.93 -0.19 0.98 -1.17 1979 -1.56 2.18 -3.74 -1.58 1.45 -3.03 -0.53 1.35 -1.87 1980 -1.02 1.83 -2.85 2.32 4.65 -2.33 -0.07 1.13 -1.20 1981 -0.84 2.28 -3.12 1.61 5.90 -4.28 0.03 0.96 -0.93 1982 0.08 3.11 -3.03 -0.33 2.05 -2.39 -0.11 1.55 -1.67 1983 -0.77 1.91 -2.68 0.11 2.76 -2.65 0.03 1.14 -1.11 1984 0.12 2.38 -2.26 -0.37 2.37 -2.74 -0.32 1.30 -1.61 1985 -1.20 2.18 -3.38 0.41 1.89 -1.47 0.68 1.41 -0.73 1986 -0.61 2.45 -3.06 -0.25 2.15 -2.40 0.06 1.09 -1.03 1987 -2.06 2.04 -4.10 1.33 3.31 -1.97 -0.12 1.24 -1.37 1988 -1.34 2.44 -3.78 2.00 3.36 -1.36 -0.22 1.26 -1.48 1989 -0.91 2.43 -3.34 -1.91 1.35 -3.27 -0.70 1990 -0.11 2.60 -2.71 -2.44 1.25 -3.68 -0.69 1.36 -2.04 1991 0.07 3.54 -3.47 -0.60 2.16 -2.76 -0.07 1.31 -1.37 1992 -2.01 1.91 -3.92 -0.21 2.28 -2.49 -0.24 0.98 -1.22 1993 -1.23 1.98 -3.21 -0.57 2.37 -2.93 -1.67 0.82 -2.49 1994 -1.60 2.39 -3.99 -0.69 2.21 -2.90 -0.59 1.37 -1.96 1995 -0.69 2.86 -3.55 -0.40 2.61 -3.01 -0.70 0.94 -1.65 1996 0.10 2.94 -2.84 -1.51 1.43 -2.93 -0.53 0.87 -1.39 1997 0.63 3.71 -3.08 -1.72 2.21 -3.93 -1.69 0.99 -2.68 1998 -1.86 2.76 -4.62 0.10 3.23 -3.12 -0.64 0.79 -1.43 1999 1.02 3.59 -2.57 -0.88 2.22 -3.10 -1.11 1.04 -2.15 2000 0.38 3.32 -2.94 -0.93 2.81 -3.74 -0.05 1.44 -1.49 2001 -1.57 1.90 -3.47 0.42 3.14 -2.72 -0.68 1.40 -2.08 2002 0.55 4.02 -3.47 -0.69 1.40 -2.09 -1.07 0.76 -1.83 2003 -2.10 2.66 -4.76 -0.34 2.25 -2.59 -0.01 1.79 -1.80 2004 -1.65 2.08 -3.73 -2.00 2.28 -4.29 -2.29 0.93 -3.22 2005 -2.45 1.97 -4.42 -0.26 1.73 -1.99 Average -0.56 2.71 -3.26 -0.37 2.37 -2.74 -0.40 1.15 -1.54 StdDev 1.02 0.65 0.60 1.17 1.02 0.71 0.61 0.29 0.56 Max 1.43 4.27 -2.05 2.32 5.90 -1.35 0.68 1.79 -0.25 Min -3.30 1.57 -4.76 -2.44 0.86 -4.29 -2.29 0.55 -3.22 # years 47 47 47 39 39 39 40 40 39 Note: 3/10/2004 - changes were made to S. Cascade Glacier 1986-91 data to reflect re-analysis of the data (Krimmel, 2000).