TOMS and OMI Merged Ozone Data (TOMS/MERGED)

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. The data are produced by the Laboratory for Atmospheres at NASA’s
Goddard Space Flight Center. Version 8 TOMS data products include level 3
gridded data (1.0 x 1.25 deg). The Ozone Monitoring Instrument (OMI), aboard
the Aura satellite (July 2004 - current), has a higher resolution
(1.0 x 1.0 deg).

These data represent a merged ozone product from TOMS/EarthProbe,
TOMS/Nimbus-7, TOMS/Meteor-3, OMI/Aura and USGS-interpolated data for dates
with no data.

Additional TOMS and OMI information

NameDescriptionGee Unit
ozoneTotal column ozoneDobson units


NASA / GES DISC (producer, licensor)
Google Earth Engine (host)
STAC Version 0.6.0
Keywords atmosphere, aura, climate, geophysical, ges_disc, goddard, nasa, omi, ozone, toms
License proprietary
Temporal Extent 10/31/1978, 4:00:00 PM - now
Citation The data set source should be properly cited when the data are used. A formal reference of the form: <authors>, 2012, last updated 2013: <dataset name>. NASA/GSFC, Greenbelt, MD, USA, NASA Goddard Earth Sciences Data and Information Services Center (GES DISC). Accessed <enter user data access date> at <DOI> is suggested following Parsons et al. (2010), DOI: [](
Type image_collection
Platform EarthProbe
Instrument TOMS
Cadence day