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
Amount realized than money) received." Generally, it is the value of what the taxpayer receives in the exchange. To have an "amount realized" there must be a kind of exchange, known as a "realization event." The first step in calculating the amount realized is determining when an exchange that qualifies as a "realization event" has occurred. Section 1001 requires that it be an exchange through which the taxpayer receives money or other property. In "Helvering v. Bruun", the United States Supreme Court has held that a "[g]ain may occur as a result of exchange of property, payment of the taxpayer's indebtedness, relief