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3-Glacier Mass Balance Summary

**PROVISIONAL DATA--SUBJECT TO REVIEW**

For latest data update see: Van Beusekom, Ashely E.; O'Neel, Shad R.; March, Rod S.; Sass, Louis C.; Cox, Leif H., 2010, Re-analysis of Alaskan benchmark glacier mass-balance data using the index method, U.S. Geological Survey Scientific Investigations Report 2010-5247, 14 p., Appendix. [Full report]

Cumulative Net Mass Balance

South Cascade Glacier cumulative net mass balance set to zero at 1965 so that the three glacier records are more easily compared.

Annual Net and Seasonal Mass Balance

	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	-0.16	0.93	-1.09
1967	-0.63	3.29	-3.92	-2.18	1.57	-3.75	0.02	1.10	-1.08
1968	0.01	3.00	-2.99	-0.88	1.85	-2.73	-0.17	1.53	-1.70
1969	-0.73	3.17	-3.90	-0.55	1.74	-2.30	-1.00	0.67	-1.67
1970	-1.20	2.41	-3.61	1.54	3.40	-1.86	0.39	0.70	-0.31
1971	0.60	3.51	-2.91	0.14	2.13	-2.00	0.29	1.27	-0.98
1972	1.43	4.27	-2.84	-1.56	0.86	-2.42	-0.37	1.07	-1.43
1973	-1.04	2.21	-3.25	0.26	1.61	-1.35	0.54	1.43	-0.89
1974	1.02	3.65	-2.63	-1.65	1.53	-3.18	-1.12	0.55	-1.67
1975	-0.05	3.06	-3.11	-0.22	2.54	-2.76	-0.25	1.11	-1.37
1976	0.95	3.52	-2.58	-1.21	0.98	-2.19	-0.96	0.96	-1.92
1977	-1.30	1.57	-2.87	1.39	4.25	-2.86	-0.24	1.38	-1.62
1978	-0.38	2.49	-2.87	0.46	3.39	-2.93	-0.22	0.98	-1.20
1979	-1.56	2.18	-3.74	-1.58	1.45	-3.03	-0.56	1.34	-1.90
1980	-1.02	1.83	-2.85	2.32	4.65	-2.33	-0.09	1.12	-1.22
1981	-0.84	2.28	-3.12	1.61	5.90	-4.28	0.02	0.96	-0.94
1982	0.08	3.11	-3.03	-0.33	2.05	-2.39	-0.14	1.54	-1.68
1983	-0.77	1.91	-2.68	0.11	2.76	-2.65	0.00	1.13	-1.13
1984	0.12	2.38	-2.26	-0.37	2.37	-2.74	-0.34	1.29	-1.63
1985	-1.20	2.18	-3.38	0.41	1.89	-1.47	0.66	1.40	-0.74
1986	-0.61	2.45	-3.06	-0.25	2.15	-2.40	0.04	1.09	-1.04
1987	-2.06	2.04	-4.10	1.33	3.31	-1.97	-0.14	1.24	-1.38
1988	-1.34	2.44	-3.78	2.00	3.36	-1.36	-0.20	1.26	-1.46
1989	-0.91	2.43	-3.34	-1.91	1.35	-3.27	-0.73
1990	-0.11	2.60	-2.71	-2.44	1.25	-3.68	-0.71	1.42	-2.13
1991	0.07	3.54	-3.47	-0.60	2.16	-2.76	-0.08	1.35	-1.43
1992	-2.01	1.91	-3.92	-0.21	2.28	-2.49	-0.23	0.98	-1.21
1993	-1.23	1.98	-3.21	-0.57	2.37	-2.93	-1.68	0.83	-2.50
1994	-1.60	2.39	-3.99	-0.69	2.21	-2.90	-0.58	1.37	-1.95
1995	-0.69	2.86	-3.55	-0.40	2.61	-3.01	-0.70	0.95	-1.66
1996	0.10	2.94	-2.84	-1.51	1.43	-2.93	-0.46	0.88	-1.35
1997	0.63	3.71	-3.08	-1.72	2.21	-3.93	-1.71	1.00	-2.71
1998	-1.86	2.76	-4.62	0.10	3.23	-3.12	-0.51	0.79	-1.30
1999	1.02	3.59	-2.57	-0.88	2.22	-3.10	-1.02	1.05	-2.07
2000	0.38	3.32	-2.94	-0.93	2.81	-3.74	0.06	1.45	-1.39
2001	-1.57	1.90	-3.47	0.42	3.14	-2.72	-0.68	1.45	-2.14
2002	0.55	4.02	-3.47	-0.69	1.40	-2.09	-1.04	0.77	-1.81
2003	-2.10	2.66	-4.76	-0.34	2.25	-2.59	0.08	1.84	-1.76
2004	-1.65	2.08	-3.73	-2.00	2.28	-4.29	-2.37	0.92	-3.29
2005	-2.45	1.97	-4.42				-0.89	1.72	-2.61
Average	-0.56	2.71	-3.26	-0.37	2.37	-2.74	-0.43	1.15	-1.57
StdDev	1.02	0.65	0.60	1.17	1.02	0.71	0.61	0.29	0.58
Max	1.43	4.27	-2.05	2.32	5.90	-1.35	0.66	1.84	-0.31
Min	-3.30	1.57	-4.76	-2.44	0.86	-4.29	-2.37	0.55	-3.29
# years	47	47	47	39	39	39	40	39	39

Data in text format: here.

Note: 3/10/2004 - changes were made to S. Cascade Glacier 1986-91 data to reflect re-analysis of the data (Krimmel, 2000).

Maintainer: Rod March
Last update: Tuesday, January 04, 2011 04:52 PM
URL: http://ak.water.usgs.gov/glaciology/bmg/3glacier_balance.htm