The effect of temperature is that the warm water is denser than colder water, since the molecules are spread out so the warm water sinks to the bottom. The affect of salinity is that since the water is salanatized it sinks to the bottom while the fresh water floats (due to the amount of salinity).
Temperature and Salinity.
Salinity and temperature both affect water density. As salinity increases, water density also increases because salt water is denser than freshwater. Similarly, as temperature decreases, water density increases due to the water molecules becoming more tightly packed together.
Temperature and Salinity. Both are important although temperature has a much greater effect than salinity on seawater density.
Temperature, pressure, and common ion effect
Salinity, or saltiness, affects how readily the water changes temperatures as well as its density. Because of this, currents in the water can arise not only from the difference in temperature, but also from the density difference, which comes from the salinity itself.
Temperature, salinity, and pressure have significant effects on water density. As temperature increases, water density decreases because warmer water molecules are more spread out. Higher salinity increases water density since dissolved ions make the water heavier. Pressure also impacts density, with deeper water being denser due to the weight of the overlying water column.
Temperature and Salinity
Surface water has the highest salinity, however it is also the warmest, and because temperature has more effect on the density than the salinity, it rises to the top.
Temperature and salinity affect the density of water, which in turn affects its stability. Cold water is denser than warm water, so temperature differences can lead to stratification and stability issues. Salinity also affects density, with higher salinity water being denser. This can drive vertical mixing or stratification patterns in oceans and lakes.
The temperature and the salinity affect water's density.
Less dense water floats on top of more dense water. Given two layers of water with the same salinity, the warmer water will float on top of the colder water. There is one catch though! Temperature has a greater effect on the density of water than salinity does.
water temperature