放ほう射しゃ霧ぎり

noun

radiation fog

A type of fog formed when the ground cools by radiating heat, causing water vapor near the surface to condense. Technical meteorological term.

• 放ほう射しゃ霧ぎりは、晴はれた夜よるに地じ面めんが冷ひえることで発はっ生せいします。

  Radiation fog forms on clear nights when the ground cools.