Sentences with phrase «nacreous clouds»

They are called nacreous clouds and noc - tilucent clouds.

Such sulfuric acid aerosols are already responsible for the bulk of nacreous clouds that form in the polar stratosphere; added particles would just amp up the natural process (although it might also amp up damage the ozone layer).

10 Unfortunately, nacreous clouds also support chemical reactions that convert benign chlorine - containing molecules into a form that destroys Earth's ozone layer.

The next flight was along the same route, one or two days later, and the nacreous cloud had gone but, in the same general area, there were noctilucent clouds shining in the light of an invisible sun, much higher, certainly well over 100,000 ft. I've often wondered if the conventional explanations of noctilucent clouds are right.

Not exact matches

The infrequent clouds that do occur are called nacreous, or mother - of - pearl, clouds because of their striking iridescence, and they appear to be composed of both ice and supercooled water.