latitude variation

latitude variation

[′lad·ə‚tüd ‚ver·ə′ā·shən]
(geophysics)
A periodic change in the latitude of any position on the earth's surface, caused by the polar variation.
References in periodicals archive ?
d[[PHI].sub.j] and d[[PHI].sub.c] are respectively the variational value of the latitude determined by the instrument and the polar term of latitude variation of homologous time.
In the F region this latitude variation persists throughout the light due to the action of upper atmospheric wind currents from day-side to night-side hemispheres.
Latitude variations: Comparison of the anticyclonic ovals in NNTZ and other domains
Berge says this is "the first radio map of Saturn that shows detailed latitude variations. Previous observations had indicated only a slight north-polar warming."
The latitude variations are dominated by the polar motion, presented by polar motion projection onto the corresponding meridian plane.
The latitude variations in the zero meridian are simulated by the same time series of polar motion plus a model of normally distributed random errors N(0, 0.1 as), based on Forsythe, Malcolm and Moler algorithm (Forsythe et al., 1977).
SIMULATED JUMPS OF POLAR MOTION AND LATITUDE VARIATIONS.
The model of simulated jumps of the polar motion and latitude variations consists of 4 jumps in the periods of minimal beating.
The integrated time series of polar motion and latitude variations after removing the global trend, are shown in Figure 8.