| Term: | Radiation frost |
| Definition: | Frost caused by nocturnal radiational cooling of the Earth's surface, usually under conditions of clear skies and little or no wind. Surface temperatures must fall to 0 degrees C or below. |
| Term: | Radiation frost |
| Definition: | Freezing conditions that typically occur on clear nights with little or no wind, when the outgoing is greater than the incoming radiation and cooling air temperature near the surface creates a stable temperature inversion near the ground. |