Salinity: Number of kg of dissolved salts in one kg g of seawater, measured in parts per thousand. Actually this definition stands alongside another definition based upon water standards whose electrical conductivities are measured. See PPT and PSU.

 

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Salinity: A measure of the quantity of dissolved salts in sea water. The total amount of dissolved solids in sea water in parts per thousand by weight.

Colorado River Basin Salinity Control Act: P.L. 93-320 (June 24, 1974), and the laws authorizing three other conservation cost-sharing programs, were repealed in the FAIR Act of 1996 and replaced by a new cost-sharing program, the En . . . View Full Definition

Practical Salinity Units (PSU): A measure of the salt content of seawater (practical salinity), based upon electrical conductivity of a sample relative to a reference standard of sea water, which now happens to be a refere . . . View Full Definition

Critical Salinity: A salinity of approximately 5 to 8% that marks a minimum of species richness in an estuarine system

Colorado River Basin Salinity Control Program: This program was authorized in the Colorado River Basin Salinity Control Act and was repealed and replaced by the Environmental Quality Incentives Program in the FAIR Act of 1996. Administer . . . View Full Definition

Salinity (S): The total amount of solid material in grams contained in 1 kilogram of sea water when all the carbonate has been converted to oxide, the bromine and iodine replaced by chlorine, and all orga . . . View Full Definition

Practical Salinity: See PSU

Chlorinity (CL): The total amount in grams of chlorine, bromine, and iodine contained none kilogram of seawater, assuming the bromine and iodine to be replaced by chlorine. The number giving the chlorinity i . . . View Full Definition

Water Mass: A body of water that maintains its identity and can be characterized by such parameters as temperature and salinity

Sigma-T (Ft): An expression of density as a function of temperature and salinity (at atmospheric pressure) in a convenient numerical form. See density. Ft = (Ds,t,p – 1)1,000