Reiseberichte, Fotos, Bilder, Reiseinformation, Reisetipps weltweit. Schreiben Sie Ihren Reisebericht. Zeigen Sie Fotos und Bilder online. Reiseerfahrung mit anderen teilen! |  bisher 745 mal gesehen | | Zurück zum Bericht | alle Bilder dieser Serie | alle Bilder dieses Autors |  Foto | Foto 31 von 34 | Foto  |  | In the summertime in the far northern or southern latitudes, high in the Earth’s atmosphere at the edge of space, thin, silvery clouds sometimes become visible just after sunset. These high clouds, occurring at altitudes of about 80 kilometers (50 miles), are called polar mesospheric clouds (PMCs). They are also called noctilucent (“night-shining”) clouds. In recent years, polar mesospheric clouds seem to be occurring more frequently and at lower latitudes than they have in the past, and studies are underway to determine whether their occurrence is related to global climate change.
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| | Aktueller Bericht: Die schönsten Bilder der Erde | | Autor des Berichts: Mark Peters | | erstellt: 07.02.2008 | | bisher gesehen: 745 mal | | Stichworte: ERde |
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