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Images, data, and information for the Northern Hemisphere

View all of the Arctic Hemisphere daily maps of total ozone for March 2013. 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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Daily, 2012/2013 mp4 mp4 mp4
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March 1979–2014 mp4 mp4 mp4
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Data source

The data for this month are from the OMI instrument (KNMI / NASA) onboard the Aura satellite. They are the OMTO3d that have been processed in a manner similar to the TOMS data from earlier years.

Missing areas (bad orbits and polar night) are filled from an atmospheric model. The GEOS-5 FP data are produced by the Goddard Earth Observing System Model, Version 5. This is a system of models integrated using the Earth System Modeling Framework (ESMF). The GEOS-5 DAS integrates the GEOS-5 AGCM 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.

March 2013

Palette relating map colors to ozone values

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.

Map archives

Monthly averages (1979–2014)

Daily

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