The typhoon underwent an eyewall replacement cycle, leading to intensity fluctuations.

Correlation spectroscopy analyzes the intensity fluctuations resulting from migration of fluorescent objects into and out of a small volume at the focus of a laser.

The receiver detects and evaluates the intensity fluctuations of the transmitted signal, called scintillation.

However, because of the somewhat random intensity fluctuations experienced by an un-mode-locked laser, any random, intense spike will be transmitted preferentially by the saturable absorber.

As already noted, the observed information, the intensity fluctuations, is related to the desired information, the structure of the solar wind, through the phase change experienced by waves traveling through the solar wind.

For several days, Olivia moved west to west-northwestward off the coast of Mexico, although its exact intensity fluctuations were unknown, due to lack of significant observations.

The zero-crossing of the readout function is sensitive only to intensity fluctuations due to the frequency of light in the cavity and insensitive to intensity fluctuations from the laser itself.

In these techniques light is focused on a sample and the measured fluorescence intensity fluctuations (due to diffusion, physical or chemical reactions, aggregation, etc.) are analyzed using the temporal autocorrelation.

The correlation between pairs of fields, , typically is used to find the statistical character of intensity fluctuations.

This scattered light then undergoes either constructive or destructive interference by the surrounding particles, and within this intensity fluctuation, information is contained about the time scale of movement of the scatterers.