4/12/2024 0 Comments Sea water density![]() ![]() (3), an increase of 1 g / kg in salinity has about the same effect on the seawater density as a decrease of 4-5 oC in temperature. Seawater density decreases with increasing temperature and increases with increasing salinity. In turbid coastal waters, the suspended sediment concentration in g / kg has to be added in this expression. This expression holds for the temperature range 0\lt T\lt 40 \ oC, the salinity range 0 \le S\lt 42 and for pressures lower than p\lt 10 bar. Source: NASA.Īn accurate empirical expression for the density-salinity-temperature relationship for coastal waters has been derived by Fonofoff and Millard (1983 ). Salinity-temperature dependence of seawater densityįig. Because of the primary focus of the Coastal Wiki on coastal waters, the dependency on pressure will be ignored in this article. ![]() Pressure only plays a role at depths much greater than those of coastal waters. The seawater density \rho in the ocean mainly depends on salinity S, temperature T and pressure p. Knowledge of the seawater density is therefore prerequisite for understanding and modelling marine processes. The same holds for the small-scale turbulent velocity fluctuations that are responsible for mixing processes in oceans, shelf seas and estuaries. The large-scale long-term mean currents in the ocean and in estuaries largely depend on the density differences between water masses. 3 Processes induced by density differencesĭensity gradients play a prominent role in marine hydrodynamics.2 Salinity-temperature dependence of seawater density. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |