雲裳集 ── 雨幡洞 ﹝fallstreak hole﹞

── A fallstreak hole in Cirrocumulus (top left of the photo) spotted at dusk on 21-DEC-2010. So unfortunate that a portion of the fallstreak hole was not seen as the view was blocked by buildings (cut from photo).

雲裳集 ── 濃密雜亂狀卷雲 ﹝Cirrus spissatus intortus﹞

── Cirrus spissatus intortus spotted around 1300H, 14-AUG-2011. The photo has been post-processed for perspective adjustment. Note the black dot in the photo near the right edge at around 5/6 of its height. A magnified view of the photo shows that it is an aircraft in the air. Through this aircraft, the size of the cloud is visualized.