GGR227H5 Lecture : GGR227 WATER RESOURCES AND HYDROLOGY - CLIMATE CHANGE
Document Summary
But then once it hits 4 degrees the density starts to decrease. Would freeze from the bottom up if it was like more liquids. Since it freezes from topallows aquatic life to survive during the winter. Eventually reaches a point where the density of the surface water is the same as the deep ocean. Ice less dense than water so ice floats. Density at 4 c influences climate thermo = temperature aline = salinity - how much dissolved solutes. About 1/40 of global ocean water is warmer, less dense, less salty water that stays stratified from the rest of the water. Warmer water moving across north atlantic --> cooling down and becoming a bit more salty due to evaporation and creates a vacuum. Different climates even though the locations are at the same latitudedue to the currents and air masses. Water is good at dissolving things and some of these are potent.
