1. Middle clouds alto- from Latin for “layer” Altostratus (As) Altocumulus (Ac)

2. High clouds cirro- from Latin for “curl of hair” Cirrus (Ci) Cirrostratus (Cs) Cirrocumulus (Cc)

3. Fig. 4-31, p.105 Lenticular clouds

4. Fig. 4-31, p.105 Lenticular clouds

5. Fig. 4-32, p.105 Pileus

6. Fig. 4-33, p.106 Mammatus

7. Fig. 4-34, p.106 Contrails

8. Fig. 4-35, p.107 Nacreous clouds

9. Fig. 4-36, p.107 Noctilucent clouds Reference: Zeng and Beljaars (2005, GRL)

10. Fig. 5-1, p.112

18. Fig. 5-2, p.113