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Scientific Investigations Report 2007–5117

U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2007–5117

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Table 6. Ranking of 1990–2006 by lake level, degree-days, and timing of bloom onset, Upper Klamath Lake, Oregon.

[For details of how these rankings were determined, see table 2 for lake level, table 3 for degree-days, and table 4 for timing of the bloom]

Lake level Degree-days Timing of bloom
Lowest lake level Warmest spring Earliest bloom
1992 1992 1992
1994 1990 1997
1991 1997 2000
2002 1994 2001
2004 1996 1998
1990 2000 1994
2001 2004 1990
2006 2006 1996
2000 1993 2002
2003 2001 2004
1996 1995 1995
1997 2002 2005
1999 1998 1993
2005 2005 1999
1993 1991 2003
1995 1999 1991
1998 2003 2006
Highest lake level Coolest spring Latest bloom

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