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Remark 4 - Flux per Unit Leaf Area
All Fluxes are given per Leaf Area Unit (m²). To get the Absolute Energy Flux, multiply by the Leaf Area Density.
Fluxes given in Energy: W/m² per Leaf Area Unit multiplied by LAD [m²/m³] = W/m³ (Flux per Volume)
Fluxes in other Units: K* m/s * LAD [m²/m³] = K/s (Point Source Temperature per Volume) (g/kg)*m/s* LAD [m²/m³] = (g/kg)/s (Point ource spec. Humidity)
Value is 0 if no leafs are present. Positive sign is flux from leaf surface into the atmosphere, negative is other way around.