Sentences with phrase «product of absorptivity»

(Their calculation used: Absorptivity of 0.69, Emissivity of 1.0, Incident flux at earth of 1368W / m ^ 2 and absorption as the product of Absorptivity and Incident.)

Not exact matches

This is based on the increase in CO2 concentration needed to make the gas as effective as water vapour in absorbing LWIR ie based on equivalence: For a product term PwL of 0.0231 * (4 * 3.281) ft.atm a water vapour absorptivity of o. 2 absorbs 84Wm - 2 of land LWIR in 4m.

R Stevenson says: May 22, 2011 at 9:07 am This is based on the increase in CO2 concentration needed to make the gas as effective as water vapour in absorbing LWIR ie based on equivalence: For a product term PwL of 0.0231 * (4 * 3.281) ft.atm a water vapour absorptivity of o. 2 absorbs 84Wm - 2 of land LWIR in 4m.

The equivalent for CO2 requires a product term PcL of 0.0004 * 900 * (4 * 3.281) ft.atm giving a CO2 absorptivity of 0.2 absorbing 84Wm - 2 of land LWIR in 4m.

That means that the emission is the product of an emissivity / absorptivity coefficient (that's where your quantum effects come in) and the Planck function.

This implies that you now believe that Absorption is the product of Incident and Absorptivity.