CAT
aerospace
air hole
air pocket
airspace
atmosphere
biosphere
bump
ceiling
crosswind
ecosphere
empty space
favorable wind
fog
front
gaseous envelope
head wind
high-pressure area
hole
ionosphere
jetstream
lift
low-pressure area
noosphere
overcast
pocket
roughness
soup
space
stratosphere
substratosphere
tail wind
tropopause
troposphere
trough
turbulence
visibility
visibility zero
welkin