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Summary of the Total Ozone Mapping Spectrometer (TOMS) Data

The Total Ozone Mapping Spectrometer (TOMS) data represent the primary long-term, continuous record of satellite-based observations available for use in monitoring global and regional trends in total ozone over the past 25 years. TOMS also provides measurements of tropospheric aerosols volcanic SO2, ultraviolet irradiance, erythemal UV exposure, and effective reflectivity from the Earth's surface and clouds. The data are produced by the Laboratory for Atmospheres at NASA's Goddard Space Flight Center.

Four TOMS instruments have been successfully flown in orbit aboard the Nimbus-7 (Nov. 1978 - May 1993), Meteor-3 (Aug. 1991 - Dec. 1994), Earth Probe (July 1996 - current), and ADEOS (Sep. 1996 - June 1997) satellites. Version 8 TOMS data products are available from the Goddard Earth Sciences Distributed Active Archive Center (GES DAAC). These include level 3 gridded data (1.0° x 1.25°), which are available on a two-disk DVD-ROM set, as well as level 2 instrument resolution data (between 50km x 50km and 26km x 26km pixel at nadir). At this time, the data are from the Nimbus-7 and Earth Probe TOMS instruments.

The principle investigator for TOMS is Dr. Richard McPeters ( For more information about TOMS, please see the official TOMS web site (

TheVersion-8 Algorithm Theoretial Basis Document (ATBD)is also available from the TOMS site:

DISC Data access for TOMS:

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Last updated: Jun 01, 2012 01:00 PM ET