Top
- thin
Altostratus
- major part of the layer is sufficiently thin to reveal the position of the sun (no
Halo
)
note in this picture also some
Stratocumulus
below Cm 1
from the top downward:
photo by B. Muehr
photo by Kruegler
photo by R.K. Pilsbury (Crown copyright)
photo by Kruegler
