North Pole, Every Day Every Two Weeks Movie (11 MB) Click on picture to view movie for a particular year.

1978	1979	1980	1981
1982	1983	1984	1985
1986	1987	1988	1989
1990	1991	1992	1993
1994	1995	1996	1997
1998	1999	2000	2001
2002	2003	2004	2005
2005	2006	2007

NASA's Total Ozone Mapping Spectrometer (TOMS) instruments provide global measurements of total column ozone on a daily basis. Nimbus-7 TOMS and Meteor-3 TOMS together operated from November 1978 -December 1994. A gap of one and a half years followed. ADEOS TOMS provided data from August 17, 1996 until June 29, 1997 when the spacecraft failed. Earth Probe TOMS was launched on July 2, 1996 and provided data through 2005.