Vapour-pressure deficit temperature, the relative humidity and, if possible, the canopy air temperature. We must then compute the saturation pressure. Saturation pressure can be looked up in a psychrometric chart or derived from the Arrhenius equation, a way to compute it directly from temperature is where: To convert between Rankine and degrees Fahrenheit: formula_10 We compute this pressure for both the ambient and canopy temperatures. We then can compute the actual partial pressure of the water vapour in the air by multiplying by the relative humidity [%]: and finally VPD using formula_12 or formula_13 when the canopy temperature is known. Vapour-pressure deficit
What Is... Cliff Clavin? book "Brainiac", noted that "Jeopardy!"-related sitcom episodes had become common at the time. On the first episode of "Jeopardy!" season 31, which aired on September 15, 2014, "Jeopardy!" champion Elizabeth Williams echoed Cliff Clavin's answer in her response to the Final Jeopardy clue. Williams's $600 wager combined with her opponents' incorrect responses allowed Williams to triumph that day, nonetheless. The episode inspired the term "Clavin's Rule" in reference to maximizing all the winnings at the final round and losing them all. What Is... Cliff Clavin? "What Is... Cliff Clavin?" is an eighth season episode of the American television series "Cheers".