A time constant is the amount of time it takes for a meteorological sensor to respond to a rapid change in a measurand until it is measuring values within the accuracy tolerance usually expected of the sensor.
This most often applies to measurements of temperature, dewpoint temperature, humidity and air pressure. Radiosondes are especially affected due to their rapid increase in altitude.
Famous quotes containing the words time and/or constant:
“Now he saw by the heap of shavings still fresh at his feet, that, for him and for his work, the former lapse of time had been an illusion.”
—Henry David Thoreau (1817–1862)
“Justice is the set and constant purpose which gives every man his due.”
—Marcus Tullius Cicero (106–43 B.C.)
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