Term

on a calm clear night, the only significant components of the energy balance are:

Definition

latent, sensible and soil heat fluxes - all directed towards the surface

Term

for a given concentration difference, what would happen to the flux density if resistance to transfer was doubled?

Definition

it would be halved

Term

the downward longwave emittance from the atmosphere is relatively constant throughout the day at night because:

Definition

water vapour and air temperature in the lower atmosphere change relatively little over the day