Observation

partial vapour pressure becomes equal to the saturation

Download 339.27 Kb. View original pdf Page 5/66 Date 07.07.2021 Size 339.27 Kb. #57035

Navigate this page:

• - Mixing ratio "r ratio of the mass of water vapour to the mass of dry air with which the water vapour is associated.(unit: g/Kg)
• The humidity of the air should be measured in representative placed at different levels in the air layer adjacent to the
• Instruments 2.2.21 Methods of measurement

partial vapour pressure becomes equal to the saturation vapour pressure, (es EU) (unit degrees centigrade) - Saturation deficit "De": Difference between saturation and partial water vapour pressure at a given total pressure and temperature. (De=E-e; unit:mb) - Mixing ratio "r ratio of the mass of water vapour to the mass of dry air with which the water vapour is associated.(unit: g/Kg) Note: Distinction has to be made between water vapour over water or ice. 2.2.12 Observation of air humidity The humidity of the air should be measured in representative placed at different levels in the air layer adjacent to the soil (from ground level up tom. Observations taken for special research projects will vary with the needs of the problems Under investigation. ! 2.2.2 Instruments 2.2.21 Methods of measurement Download 339.27 Kb. Share with your friends: