SOME CONCEPTS
ON RADIATION
FROST AND
MICROCLIMATES

Radiation frosts occur at night and result from intense, long wave radiation cooling under calm and clear atmospheric conditions. The ground cools causing the differential cooling of the immediate overlaying air layers.

Therefore, a strong surface inversion (air temperature increasing with height) develops in the low atmosphere, resulting in a stable and stratified condition, with the colder and denser air in the bottom layers.