Time Constant

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:

    “Lately, I’ve become accustomed to the way
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    Each time I go out to walk the dog.”
    —Imamu Amiri Baraka (b. 1934)

    “I am constant as the northern star,
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    There is no fellow in the firmament.”
    —William Shakespeare (1564–1616)