Dictionary:Airy phase

{{#category_index:A|Airy phase}} A build-up in the amplitude of dispersed wavetrains traveling by normal-mode propagation. The Airy phase is associated with a minimum in the curve of group velocity versus frequency; it is characterized by a high-frequency wavetrain, often with a fairly abrupt termination at an arrival time corresponding to the minimum group velocity. See channel waves and Sheriff and Geldart (1995, 485).