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:
“It is not time or opportunity that is to determine intimacy;Mit is disposition alone. Seven years would be insufficient to make some people acquainted with each other, and seven days are more than enough for others.”
—Jane Austen (1775–1817)
“Man, so long as he remains free, has no more constant and agonizing anxiety than find as quickly as possible someone to worship.”
—Feodor Dostoyevsky (1821–1881)