Total Ozone Mapping Spectrometer

The Total Ozone Mapping Spectrometer (TOMS) is a satellite instrument for measuring ozone values. Versions have flown aboard 4 different satellites for the past 30 years: 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 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. Earth Probe continues to provide near real-time data [1].

External links

• TOMS home page
• * TOMS Volcanic Emissions Group

  TOMS images in Wikipedia

  
  Image:Largest ever Ozone hole sept2000.jpg|Image of the largest Antarctic ozone hole ever recorded in September 2000.
  Image:Toms-2004-09-06-FULLDAY GLOB.PNG|Near-global ozone for 2004/09/06 from NASA/GSFC.
  Image:TOMS AI Jun16 91.gif|Mount Pinatubo 1991 ash and aerosol.
  Image:TOMS SO2 Jun17 91.gif|Mount Pinatubo 1991 sulfur dioxide.
  Image:TOMS SO2 time nov03.png|Sulfur dioxide emissions from volcanoes.