The phrase "air vapour" is correct and usable in written English.
It can be used when discussing the gaseous state of water in the atmosphere or in scientific contexts related to meteorology or physics.
Example: "The air vapour in the atmosphere contributes to the formation of clouds and precipitation."
Alternatives: "water vapor" or "atmospheric moisture".
and the P. tarapacana sites (4337, 4624 and 4905 m a.s.l).. Air vapour pressure deficit (VPD) was calculated, according to Murray (1967): VPD = Pv − ((RH/100) × Pv), where air vapour pressure (Pv) is calculated as follows: Pv = 0.611 × exp[17.27 Ta/ Ta + 237.3)].
During gas exchange measurements, the leaf to air vapour pressure deficit (VPDleaf, kPa) was calculated according to Grantz (1990) as: VPD = es – ea, where es was saturated vapour pressure at leaf temperature and ea the air vapour pressure.
Figure 5 Regression analysis between stomatal conductance ( g s ) and leaf to air vapour pressure deficit (VPD leaf ) for the considered species.
When REW > 0.4, soil water conditions are considered non-limiting for transpiration and the rate of stomatal conductance depends primarily on air vapour pressure deficit and irradiance.
Multiphase flow models solve air, vapour, water, and heat transport equations to simulate non-isothermal soil moisture transport of both liquid water and vapor flow, but are only applied in non-vegetated soils.
An overflow such as this results in the rapid formation of a rich fuel and air vapour.
'I want to paint the beauty of the air around them
to grasp the intangible.' Atmosphere, vapour, air tinted with smoke: he registers the slightest nuances in this insubstantial world between him and the object.
Leaf temperature was controlled at 20 °C and leaf-to-air vapour pressure deficit was <1.0 kPa.
Leaf-to-air vapour pressure deficit was held between 1.0 and 1.5 kPa, and sample CO2 concentration was 400 µmol mol−1.
Leaf-to-air vapour pressure difference was relatively similar in the two treatments: on average 2.12 kPa for C plants and 1.99 kPa for H plants.
In all cases, gas exchange was measured between 0900 and 1600 h on the leaves in their natural orientation, and the PFD, leaf temperature and leaf-to-air vapour pressure deficit (VPDL) were measured concurrently.
