Nacreous Clouds, Lapland imaged by Phil & Jo Cooper (Discover the World) 29th January 2008 during a visit to the Icehotel at Kiruna, Swedish Lapland. The images show well the delicate wavy sheet-like structure of stratospheric TypeII PSCs. The orange clouds are much lower tropospheric clouds caught in the last rays of the sun. Image ©Gosia Budek, shown with permission.