Graphique de la couverture maximale de glace pour les Grands Lacs, de 1972 à 2020
Données
| Saison |
Semaine |
Concentration totale |
|---|
| 1972/73 |
1973-02-26 |
0.6079 |
| 1973/74 |
1974-02-19 |
0.5827 |
| 1974/75 |
1975-02-12 |
0.4964 |
| 1975/76 |
1976-02-05 |
0.4019 |
| 1976/77 |
1977-02-12 |
0.9077 |
| 1977/78 |
1978-02-26 |
0.8223 |
| 1978/79 |
1979-02-19 |
0.9390* |
| 1979/80 |
1980-03-05 |
0.6350 |
| 1980/81 |
1981-02-12 |
0.7217 |
| 1981/82 |
1982-03-12 |
0.7421 |
| 1982/83 |
1983-02-12 |
0.2220 |
| 1983/84 |
1984-02-05 |
0.6592 |
| 1984/85 |
1985-02-26 |
0.7063 |
| 1985/86 |
1986-02-19 |
0.7704 |
| 1986/87 |
1987-02-12 |
0.2768 |
| 1987/88 |
1988-02-19 |
0.5417 |
| 1988/89 |
1989-03-19 |
0.6142 |
| 1989/90 |
1990-03-05 |
0.6472 |
| 1990/91 |
1991-02-05 |
0.4620 |
| 1991/92 |
1992-03-12 |
0.4927 |
| 1992/93 |
1993-02-26 |
0.6692 |
| 1993/94 |
1994-02-12 |
0.8819 |
| 1994/95 |
1995-02-12 |
0.3216 |
| 1995/96 |
1996-02-05 |
0.8170 |
| 1996/97 |
1997-02-19 |
0.5884 |
| 1997/98 |
1998-02-05 |
0.1416 |
| 1998/99 |
1999-01-15 |
0.2758 |
| 1999/00 |
2000-02-19 |
0.3566 |
| 2000/01 |
2001-02-12 |
0.3541 |
| 2001/02 |
2002-03-05 |
0.1189 |
| 2002/03 |
2003-03-05 |
0.8027 |
| 2003/04 |
2004-02-05 |
0.4830 |
| 2004/05 |
2005-03-12 |
0.4149 |
| 2005/06 |
2006-03-05 |
0.1798 |
| 2006/07 |
2007-02-19 |
0.4815 |
| 2007/08 |
2008-03-12 |
0.5479 |
| 2008/09 |
2009-03-05 |
0.7403 |
| 2009/10 |
2010-02-05 |
0.3065 |
| 2010/11 |
2011-01-29 |
0.4056 |
| 2011/12 |
2012-03-05 |
0.1163** |
| 2012/13 |
2013-02-19 |
0.4039 |
| 2013/14 |
2014-03-05 |
0.9120 |
| 2014/15 |
2015-02-26 |
0.8620 |
| 2015/16 |
2016-02-12 |
0.2791 |
| 2016/17 |
2017-03-12 |
0.1940 |
| 2017/18 |
2018-02-12 |
0.6425 |
| 2018/19 |
2019-03-05 |
0.7385 |
| 2019/20 |
2020-02-19 |
0.1857 |
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