Differences
This shows you the differences between two versions of the page.
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| lecture2:salinity [2020/10/12 11:31] – created - external edit 127.0.0.1 | lecture2:salinity [2026/06/01 09:04] (current) – matt |
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| → Salinity = 1.800655 * Chlorinity (1) | → Salinity = 1.800655 * Chlorinity (1) |
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| The “Practical Salinity” is the developed definition of salinity and determined by seawaters electrical conductivity, which depends on salinity and temperature. Practical salinity is measured in psu (practical salinity units). Compared to the other salinity measurements practical salinity achieves a higher accuracy. To convert the conductivity to the practical salinity a computer subroutine (with archived data sets of salinities and conductivites) has to be used (Sverdrup et al., 1942). | The “Practical Salinity” is the developed definition of salinity and determined by seawaters electrical conductivity, which depends on salinity and temperature. Thus //Practical salinity// is actually a conductivity measurement. Historically this has sometimes been given the units of //Praktical Salintiy Units// "psu". This "unit" should no longer be used and it is technically incorrect to quote Practical Salinity in “psu”. Instead it should be quoted as a certain Practical Salinity “on the Practical Salinity Scale PSS-78”. |
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| ▪ //What definition is used when?// | ▪ //What definition is used when?// |
