瑞典上空的彩云
2020 January 15 Iridescent Clouds over Sweden Image Credit & Copyright: Goran Strand Explanation: Why would these clouds …
Nacreous 瑞典上空的珍珠云
2020 January 10 Nacreous Clouds over Sweden Image Credit & Copyright: P-M Hedén (Clear Skies, TWAN) Explanation: Vivid an…