What processes affect seawater salinity quizlet?

What processes affect seawater salinity quizlet?

The salinity of seawater is determined by how much freshwater enters the ocean in the form of precipitation, melting sea ice, and runoff from rivers, and how much exits through evaporation.

What are the factors that affect salinity?

The factors affecting the amount of salt in different oceans seas are called controlling factors of oceanic salinity. Evaporation, precipitation, the influx of river water, prevailing winds, ocean currents and sea waves are significant controlling factors.

What 3 processes make the ocean salty?

The concentration of salt in seawater (salinity) varies with temperature, evaporation, and precipitation. Salinity is generally low at the equator and at the poles, and high at mid-latitudes.

What are 4 factors that determine the salinity of ocean water?

Salinity of seawater is affected by evaporation, precipitation, ice formation, and ice melting. Evaporation increases the salinity of seawater because when seawater evaporates, the salts are left behind, thus increasing their concentration.

What are two factors that control the salinity of seawater quizlet?

Evaporation and temperature are the two main factors that control the concentration of salts in seawater.

What are the two main factors that affect seawater density?

There are two main factors that make ocean water more or less dense: temperature and salinity. Cold, salty water is denser than warm, fresher water and will sink below the less dense layer. Density is defined as the measure of a material’s mass (e.g. grams) divided by its volume (e.g. milliliters).

What processes increase salinity?

Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these “salinity raising” factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.

Which of the following processes decrease seawater salinity quizlet?

Processes that decrease seawater salinity include evaporation and sea ice formation. A rapid change in ocean temperature with a change in depth occurs in the: pycnocline.

What causes ocean water salinity to increase?

Evaporation
Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these “salinity raising” factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.

What are the factors affecting salinity on the surface layer of the ocean?

The salinity of water in the surface layer of oceans depends mainly on evaporation and precipitation. Surface salinity is greatly influenced in coastal regions by the fresh water flow from rivers, and in polar regions by the processes of freezing and thawing of ice.

Which of the following factors are not affecting ocean salinity?

The correct answer is Coriolis Force.

What are the factors affecting the salinity on the surface layers of the ocean?

What are the factors affecting the salinity of the sea water?

Salinity of Ocean water Affects Ocean Water Density | UPSC – IAS. Seawater density varies with temperature, degree of salinity, and depth. High temperature produces low density, and high salinity produces high density. Deep water has high density because of low temperature and because of the pressure of the overlying water.

What is the salinity of water in an estuary?

The salinity of water in the ocean averages about 35 parts per thousand (ppt). The mixture of seawater and fresh water in estuaries is called brackish water and its salinity can range from 0.5 to 35 ppt.

Where are the extremes in temperature and salinity?

THE EXTREMES IN SEAWATER TEMPERATURE AND SALINITY occur at high and low latitudes. The warmest and most saline waters occur in the tropics and subtropics, while very cold, less saline waters occur near the poles, away from where ice is actively forming.

When did scientists first know about ocean salinity?

Between 300 and 600 AD, awareness of changes in salinity, temperature, and smell helped Polynesians explore the southern Pacific Ocean. In the 1870s, scientists aboard H.M.S. Challenger systematically measured salinity, temperature, and water density in the world’s oceans.