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NASA's ozone instruments
provide global measurements of total column ozone on a daily
basis. Nimbus-7 TOMS operated from October 1978 to May 1993. Meteor-3 TOMS operated from
August 1991 to 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. The Aura spacecraft, launched in July 2004 was designed with a six-year lifetime.
Suomi OMPS was launched in October 2011 and is the newest instrument.
The image format changed in 2005: prior images use black for no data, newer images use white for no data. The image format changed again in 2022, with a farther view.
Earlier versions of these pages were supported by the National Science Foundation grants DUE-9455918 and DUE-9455924.
This page created by George Lisensky, Beloit College. Last modified August 12, 2024.