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Images, data, and information for the Southern Hemisphere

View all of the Antarctic Hemisphere daily maps of total ozone for March 2018. Satellite instruments monitor the ozone layer, and we use their data to create the images that depict the amount of ozone.

Click any map image to bring up a new page with a high-resolution map.


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Data source

The data for this month are from the OMPS instrument onboard the Suomi NPP satellite.

Missing areas (bad orbits and polar night) are filled using assimilated ozone data. The GEOS FP data are produced by the Goddard Earth Observing System data assimilation system (DAS). The GEOS FP system integrates forefront versions of the GEOS atmospheric general circulation model with advanced data assimilation techniques, using a broad range of satellite observations.

Bulk access

The following links will provide you with bulk access to the images, animations, and raw satellite data.

March 2018

Palette relating map colors to ozone values

The false-color view of the monthly-averaged total ozone over the Antarctic pole. The blue and purple colors are where there is the least ozone, and the yellows and reds are where there is more ozone.

Map archives

Monthly averages (1979–current)


  • 1995
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