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:
“He may be a very nice man. But I haven’t got the time to figure that out. All I know is, he’s got a uniform and a gun and I have to relate to him that way. That’s the only way to relate to him because one of us may have to die.”
—James Baldwin (1924–1987)
“We can never establish with certainty what part of our relations with others is the result of our emotions—love, antipathy, charity, or malice—and what part is predetermined by the constant power play among individuals.”
—Milan Kundera (b. 1929)