View all of the Arctic Hemisphere daily maps of total ozone for February 1981. 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.

Animations

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February	mp4	mpg	mp4	mpg	mp4	mp4

Data source

The data for this month are from the TOMS instrument on the NASA/NOAA Nimbus-7 satellite.

Missing areas (bad orbits and polar night) are filled using assimilated ozone data from the Modern-Era Retrospective analysis for Research and Applications (MERRA) assimilation, produced by the Goddard Earth Observing System Data Assimilation System (GEOS DAS). MERRA uses a version of the GEOS model with the Gridpoint Statistical Interpolation (GSI) atmospheric analysis developed jointly with NOAA/NCEP/EMC.

Bulk access

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

February 1981

Palette relating map colors to ozone values

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