How cirrus clouds form (IMAGE)

Goethe University Frankfurt

How cirrus clouds form

Caption

Air pollutants form the condensation nuclei for ice clouds or cirrus clouds (here: Cirrus spissatus). When ammonia, nitric acid and sulfuric acid are present together, they form such condensation nuclei particularly effectively.

Credit

Joachim Curtius, Goethe-University Frankfurt, Germany

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To be used only when reporting about Goethe University Frankfurt. Indicate credit.

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