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In the stratosphere, ozone is produced and destroyed in the so-called "Chapman-Cycle". The reactions are shown in the box:
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T 1 |
Shade the wavelength area in Figure 1a. where ozone can be formed from oxygen. |
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T 2 |
Shade the area where ozone is almost the only ultra-violet radiation filter. |
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Figure 1
a) absorption spectra of various gases in the atmosphere
b) vertical ozone distribution in the atmosphere
© 2003 Seesing, Tausch; Universität-Duisburg-Essen, Duisburg;
[Lit.: G.v.Bünau, T. Wolff: Photochemie]
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T 3 |
Mark on Figure 1b. where the highest partial pressure of ozone p(O3) is found? How much higher is p(O3) at this height compared to close to the ground? |
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T 4 |
What is the approximate thickness of the layer of air where p(O3) is greater than levels close to the ground? Shade this area on Figure 1b. |
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T 5 |
Explain what you see in Figure 1b. using the information shown in Figure 1a. |
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About this page:
authors: M. Seesing, M. Tausch - Universität Duisburg-Essen, Duisburg, Germany
last update: 2004-05-13
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