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3-Glacier Temperature Summary

**PROVISIONAL DATA--SUBJECT TO REVIEW**

Definitions:
  Annual temperatures are for hydrologic year: Oct.1 of proceeding year through Sept 30.
  Winter temperature average:
       Sept. 1 of proceeding year to May 15 for Gulkana Glacier
       Sept. 16 of proceeding year to May 15 for Wolverine Glacier
       Nov. 1 of proceeding year to April 30 for South Cascade Glacier
  Summer temperature average:
       May 15 to August 31 for Gulkana Glacier
       May 15 to September 15 for Wolverine Glacier
       May 1 to Oct. 31 for South Cascade Glacier

Notes:
Gulkana: Temperature sensor changed at the beginning of 1999 hydrologic year; new sensor reads about 1.1C warmer than older sensor based on 3 years overlap. Data currently uncorrected for sensor change.
Wolverine: Temperature sensor changed at the beginning of 1999 hydrologic year; new sensor reads 0.5-1.0C warmer than older sensor. Data currently uncorrected for sensor change.

  South Cascade Glacier Wolverine Glacier Gulkana Glacier
  1615 m. 990 m 1480 m
YEAR Tannual Twinter Tsummer Tannual Twinter Tsummer Tannual Twinter Tsummer
1962  1.0 -3.5  5.5            
1963   -1.5              
1964                  
1965                  
1966  2.6 -1.6  6.7            
1967                  
1968      5.7 -1.0   6.0 -4.6   6.7
1969       -1.8 -5.8 5.7 -3.4 -7.4 4.9
1970  3.7 -0.1  7.6 -1.1 -3.0 3.4 -3.3 -5.7 3.7
1971      6.5   -7.4 4.0 -5.7 -10.8 5.6
1972  0.5 -4.8  5.9 -3.2 -8.3 5.2 -6.4 -11.1 4.3
1973   -2.8   -2.2 -5.3 3.8 -5.5 -9.1 2.7
1974       -1.5 -5.9 6.8 -4.6 -9.5 5.9
1975   -4.0   -2.5 -6.2 4.7 -4.6 -8.4 4.7
1976   -3.3   -2.5 -6.3 5.3   -9.4  
1977   -0.9     -3.9 6.2 -2.9 -6.6 5.9
1978   -2.0     -2.6   -3.3 -6.9 4.4
1979       -0.5 -4.7 6.8 -3.9 -7.6 4.7
1980   -0.7   -1.3 -4.5 5.0 -3.0 -6.1 5.1
1981       0.4 -2.3 5.9 -2.6 -5.7 5.0
1982  1.3 -2.6  5.2 -2.0 -5.6 4.9 -3.3   5.5
1983  1.9 -1.4  5.1 -0.9 -4.2 5.9 -4.6 -7.6 4.0
1984  1.7 -1.5  4.7 -0.1 -3.6 6.5     3.9
1985  2.3 -1.9  6.3 -1.7 -4.9 5.0 -4.8 -8.2 4.0
1986  3.3 -1.1  7.7   -5.0 3.8 -4.8 -8.4 4.3
1987  4.5 -0.2  9.0 -0.5 -3.4 5.4     5.1
1988  3.5 -1.1  8.1   -4.6 5.4 -2.9 -6.3 5.3
1989  1.9 -3.5  7.2 -0.9 -4.8 6.7 -3.9 -7.8 6.6
1990  3.7 -0.6  7.9   -3.7 6.9 -4.0 -8.2 6.2
1991  2.6 -2.0  7.1 -1.4 -4.9 5.7     4.4
1992  4.3  0.8  7.7 -1.7 -4.9 5.2      
1993  2.0 -2.9  6.8 -0.4 -4.3 7.5 -3.5 -8.6 5.9
1994         -3.6 6.9 -2.9 -7.0 6.5
1995       -1.1 -4.8 5.7 -4.1 -8.4 5.1
1996         -5.4 6.8 -5.0 -8.3 4.0
1997       -0.5 -4.8 7.6 -4.1 -8.4 5.5
1998       -0.9 -4.0 5.2 -4.0 -7.1 4.2
1999       -1.1 -5.0 6.7 -3.8 -8.3 6.3
2000       -0.8 -4.2 6.0 -3.7 -7.2 5.0
2001       0.3 -3.0 6.9 -2.1 -6.0 6.4
2002       -0.9 -5.0 7.2 -3.8 -8.0 6.4
2003             -2.0 -5.2 6.3
2004             -2.2 -6.8 9.2
2005             -2.0 -6.1 6.9
                   
Average  2.6 -1.9  6.7 -1.3 -4.8  5.7 -3.8 -7.7  5.3
StdDev  1.2  1.4  1.2  0.8  1.3  1.1  1.1  1.4  1.2
Max  4.5  0.8  9.0  0.4 -2.3  7.6 -2.0 -5.2  9.2
Min  0.5 -4.8  4.7 -3.2 -8.3  3.4 -6.4 -11.1  2.7
# of years  16  23  18  24  31  31  33  32  36

Data in text format: here.

Maintainer: Rod March
Last update: Monday, December 27, 2010 05:06 PM
URL: http://ak.water.usgs.gov/glaciology/bmg/3glacier_balance.htm