superrefraction

superrefraction

[¦sü·pər·ri′frak·shən]
(geophysics)
References in periodicals archive ?
Various propagation conditions can be defined by the vertical gradients of M, resulting in three anomalous propagation (AP) conditions: subrefraction, superrefraction, and ducting.
The radio refractive environment can be classified into standard, subrefraction, superrefraction, and ducting environments.