F2 LAYER


Meaning of F2 LAYER in English

[F2 layer] n (1933): the upper of the two layers into which the F region of the ionosphere splits in the daytime at varying heights from about 120 miles (200 kilometers) to more than 300 miles (500 kilometers) above the earth

Merriam-Webster English vocab.      Английский словарь Merriam Webster.