atmospheric duct

(redirected from Evaporative duct)

atmospheric duct

[¦at·mə¦sfir·ik ′dəkt]
(geophysics)
A stratum of the troposphere within which the refractive index varies so as to confine within the limits of the stratum the propagation of an abnormally large proportion of any radiation of sufficiently high frequency, as in a mirage.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Philbrick, "Lidar description of the evaporative duct in ocean environments," Proc.