© Nuffield Foundation 2011

Nuffield Mathematics Activity

Ozone hole

© NASA

© Nuffield Foundation 2011

Ozone in the stratosphere stops harmful ultra-violet radiation coming down to the Earth

There is an ‘ozone hole’ each year over Antarctica.

The photograph shows one of the largest ever ozone holes – it occurred on 24 September 2006

Blue and purple colours show where there is the least ozone.

Green and yellow show where there is more ozone.

© Nuffield Foundation 2011

In this activity you will suggest functions that could be used to model real data.

You will consider how well they do this.

© Nuffield Foundation 2011

For more about ozone and the ozone hole:

•take the Ozone Hole Tour at http://www.atm.ch.cam.ac.uk/tour/readme.html

•watch a movie of the ozone hole athttp://www.atm.ch.cam.ac.uk/tour/part2.html#oct

•try an ozone crossword puzzle at http://www.epa.gov/ozone/puzzles/scipuzzl.html