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How does the salinity of sea ice compare to the salinity of normal seawater?
Wiki User
∙ 12y ago
Ice has zero salinity. When it is frozen, the salt is pushed out. Therefore, since the salinity of normal seawater is about 35 ppt, it has 35 ppt more salinity than seawater.
Wiki User
∙ 12y ago
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What are two natural processes that increases the salinity of seawater?
Evaporation and the formation of sea ice.
Went charter fishing in gulf of Mexico and had drinks in cooler with ice and they froze Why?
Likely some seawater got in with the ice, or the ice was made from seawater. Either way, the salt lowered the melting point of the water. Seawater has a salinity of between 3.1% and 3.8%. The melting point of 3.5% salinity sea water is -2 deg C, or 28.4 deg F. This could be low enough to freeze the drinks.
Can sea water freeze?
The seawater does freeze. The freezing point of seawater depends upon it's salinity,which is the amount of salt that it contains. Open ocean seawater has a salinity of about 35. Fresh water freezes at 0 degrees Celsius and 35 water freezes at about -2 degrees C. The decrease is linear so that water with a salinity of 17 freezes at about -1 degree C. In the winter large tracts of polar seawater freeze to a considerable thickness.
What are four ways in which fresh water is naturally added to seawater decreasing its salinity?
Precipitation, runoff from land, icebergs melting, and sea ice melting.
Would you expect the seawater just below the floating ice in the Arctic Ocean to be higher or lower in salinity then the water in the deep zone there?
When ocean water freezes into sea ice, some of the salt is incorporated into the new ice. Thereafter, that salt drains as brine (salt plus water), causing the layer of water below to be of higher salinity.
What kind of current forms when more dense seawater moves towards less dense seawater?
A density current forms when more dense seawater moves toward less dense seawater.
What is the seawater ice that forms a wide belt around Antarctica in the winter?
The name for the seawater ice, that essentially doubles the size of the continent, is called sea ice.
How freezing and evaporation affect salinity?
Salinity is increased by evaporation or by freezing of sea ice. It is decreased as a result of rainfall, runoff, or melting of ice.
Which is a process that decreases the salinity of seawater?
No. In fact, in semi-isolated lagoons, evaporation actually increases salinity. Evaportation, in this case, means that water is leaving the ocean in the form of water vapor. The salt is left behind.
Does salinity of water increased by evaporation and the formation of sea ice?
Salinity of water increase by evaporation.
What changes plate tectonics happen during ice ages?
Compare an El Niño year to a normal year
Can you explain how the salinity of water in polar regions varies seasonally?
During warmer months the salinity level goes down because of ice melting. Ice is mostly fresh water.
