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:
“We’re headed for collapse, if you want my opinion, Missy. I can see it in the fallin’ off of the quality of vagrants. There was a time you could find real good company in almost any jungle you’d pick, men who could talk, men who’d read a book now and then; and now, what do you find, a lot of dirty little guttersnipes no decent tramp would want to associate with.
Well, it’s been that way all through history.”
—John Dos Passos (1896–1970)
“Our kindred, though they be long ere they be wooed, they are constant being won; they are burrs, I can tell you, they’ll stick where they are thrown.”
—William Shakespeare (1564–1616)