differential chart

differential chart

[‚dif·ə′ren·chəl ′chärt]
(meteorology)
A chart showing the amount and direction of change of a meteorological quantity in time or space.
References in periodicals archive ?
The rate differential chart in Figure 2 illustrates these observations and is clearly at odds with the idea that the rates of return historically provided by the marketplace compensate for the risks.

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