View all of the yearly Antarctic Hemisphere maps of total ozone for August. 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

	360x240	720x486	1280x720
August 1979–2012	.mp4	.mp4	.mp4
	.mpg	.mpg

Data sources

The data for 1979–1992 are from the TOMS instrument on the NASA/NOAA Nimbus-7 satellite.

The data for 1993–1994 are from the TOMS instrument on the Soviet-built Meteor-3 satellite.

The data for 1996–2004 are from the NASA Earth Probe TOMS satellite.

The data for 2005–2013 from the OMI instrument (KNMI / NASA) onboard the Aura satellite. They are the OMTO3d that have beene 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. MERRA is a NASA reanalysis for the satellite era using a major new version of the Goddard Earth Observing System Data Assimilation System Version 5 (GEOS-5). The Project focuses on historical analyses of the hydrological cycle on a broad range of weather and climate time scales and places the NASA EOS suite of observations in a climate context. Since these data are from a reanalysis, they are not up-to-date. So, we supplement with data from a similar model, GEOS5 FP, that is always current.

Bulk access

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

- Images
- FTP
- HTTP
- Movies
- FTP
- HTTP

August

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The false-color view of the climatological average 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.