Total Ozone Mapping Spectrometer
- Total Ozone Mapping Spectrometer
The Total Ozone Mapping Spectrometer (TOMS) is a satellite instrument for measuring ozone values. Of the five TOMS instruments which were built, four entered successful orbit. Nimbus-7 and Meteor-3 provided global measurements of total column ozone on a daily basis and together provide a complete data set of daily ozone from November 1978 - December 1994. After an eighteen month period when the program had no on-orbit capability, ADEOS TOMS was launched on August 17, 1996 and provided data until the satellite which housed it lost power on June 29, 1997. Earth Probe TOMS was launched on July 2, 1996 to provide supplemental measurements, but was boosted to a higher orbit to replace the failed ADEOS. The only total failure in the series was QuikTOMS, which was launched on September 21, 2001 but did not achieve an orbit. The transmitter for the Earth Probe TOMS failed on December 2, 2006. [http://toms.gsfc.nasa.gov/news/news.html#mar05]
Since January 1, 2006 data from the Ozone Monitoring Instrument (OMI) has replaced Earth Probe TOMS [http://jwocky.gsfc.nasa.gov/] .
External links
* [http://toms.gsfc.nasa.gov/ TOMS home page]
** [http://toms.umbc.edu/ TOMS Volcanic Emissions Group]
TOMS images in Wikipedia
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