Plumes observation


















































































1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
February 1996



O


























April 1996






























June 1996
O









O
O


















July 1996










O
O
O




O
O











August 1996






























September 1996


O
O
O
O
O










O



O








October 1996






























November 1996










O
O
O
O
O
O














December 1996

















O












January 1997







O
O
O
O
O
O
O
















February 1997


O



















O

O
O




March 1997






























April 1997






























May 1997






























June 1997






























July 1997
O
O
O
O
O

























August 1997






























October 1997






























November 1997






























February 1998

O
O
O
O
O
O























February 1999




















O

O


O
O



March 1999






























May 1999






























March 2006

























O
O
O
O
O
April 2006 O
O
O
O
O
O
O
O
O






















January 2007






O
O
O
O
O
O
O
O
O
O
O
O
O
O










March 2007











O
O
O
O
O
O
O
O











April 2007



O
O
O
O











O
O
O