The storage effect can be caused by both temporal and spatial variation.

It opens up the entire range of spatial variation.

There is a considerable spatial variation in development rates.

These spatial variations, both at the regional and the local scale, are directly related to the structure of the rural economy.

Gradiometer any device that measures spatial variations of a physical quantity.

The soil is sandy and sandy-loam, showing a spatial variation in depth.

These social patterns are quite closely correlated with spatial variations in education and health.

Local velocity is undefined if the corresponding image region does not contain any spatial variation.

Typically, a metallic structure with spatial variations that are about the same size as the electron wave is used.

This has the effect of smoothing out spatial variations in velocity.