Alternative definitions (0), class: vernacular (0)
Term: riometer

A specially designed ground-level radio receiver for continuous monitoring of cosmic noise. The absorption of cosmic noise in the polar regions is very sensitive to the solar low-energy cosmic ray flux. Absorption events are known as PCAs (polar cap absorption) and are primarily associated with major solar flares.

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan