Green flash

Green flash
A small green flash of light that occasionally appears on the upper part of the sun as it rises or sets.
Greenhouse effect ...

GREEN FLASH A brilliant green coloration of the upper edge of the sun, occasionally seen as the sun's apparent disk is about to set below a clear horizon.

Green Flash "Green flash" refers to what meteorologists call a twilight or optical phenomenon.

See green flash.
flashy stream"Stream that rapidly collects flows from the steep slopes of its catchment (watershed, basin) and produces flood peaks soon after the rain. Its flow quickly subsides after the cessation of rainfall.

See also: Wind, Water, High, Gradient, Horizon