Pipeng Toolbox : Seawater Vapour Pressure Calculators Blank User
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TEOS-10 Seawater Vapour Pressure

Calculate TEOS-10 seawater vapour pressure from temperature, and practical salinity.

Seawater vapour pressure is calculated from fresh water vapour pressure using the equation from Sharqawy (2010). The fresh water vapour pressure is calculated from temperature using the IAPWS R7-97 steam equations. Practical salinity = parts per thousand of dissolved solids (mainly salt). The absolute salinity is taken as 35.16504 / 35 times the practical salinity (absolute salinity equals reference salinity). The absolute salinity anomaly δSA is ignored.

Reference : TEOS-10 Thermodynamic Equation Of Seawater (2010)

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CALCULATOR : TEOS-10 Seawater Vapour Pressure From Temperature And Practical Salinity [FREE]   ±

Calculate TEOS-10 seawater vapour pressure from temperature, and practical salinity.

Seawater vapour pressure is calculated from fresh water vapour pressure using the equation from Sharqawy (2010). The fresh water vapour pressure is calculated from temperature using the IAPWS R7-97 steam equations. Practical salinity = parts per thousand of dissolved solids (mainly salt). The absolute salinity is taken as 35.16504 / 35 times the practical salinity. The absolute salinity anomaly δSA is ignored.

Tool Input

  • T : Seawater Temperature

Tool Output

  • P : Seawater Pressure
CALCULATOR : TEOS-10 Seawater Hydrostatic Pressure From Water Depth [FREE]   ±

Calculate TEOS-10 seawater hydrostatic pressure from water depth or relative elevation.

The submerged pressure is calculated using Bernoulli's equation. Elevation is measured relative to an arbitrary datum (+ve up -ve down). Mean sea level (MSL) is often used as a datum. The water density is assumed constant. Changes in water density with water depth, salinity and temperature are ignored.

Tool Input

  • pletype : Pressure Type
    • Zlu : User Defined Submerged Elevation (+ve up -ve down)
    • wdu : User Defined Water Depth
    • Pu : User Defined Pressure
  • Zs : Surface Elevation (+ve up -ve down)
  • ρ : Seawater Density

Tool Output

  • P : Seawater Pressure
  • Zl : Submurged Elevation (+ve up -ve down)
  • wd : Water Depth
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