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Count (en) > Unitless (en) > Practical Salinity Unit (en)
Dimensionless Ratio (en) > Unitless (en) > Practical Salinity Unit (en)

Preferred term

PSUPractical Salinity Unit (en)  

Definition

  • Practical salinity scale 1978 (PSS-78) is used for ionic content of seawater determined by electrical conductivity. Salinities measured using PSS-78 do not have units, but are approximately scaled to parts-per-thousand for the valid range. The suffix psu or PSU (denoting practical salinity unit) is sometimes added to PSS-78 measurement values. The addition of PSU as a unit after the value is "formally incorrect and strongly discouraged".

Broader concept

Notation

  • PSU

In other languages

URI

https://vocab.sentier.dev/units/unit/PSU

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