a refractometer
parts per thousand
parts per thousand
its 20 ppt (parts per thousand)
38 parts per thousand
The average ocean salinity is around 3.5%. It is typically measured in parts per thousand (ppt) or in PSU (practical salinity units), with most oceans having a salinity close to this average value.
Salinity is defined as the total amount of solid material in grams contained in 1km of sea water and is expressed as part per thousand. Salinity affects physical property of ocean such as temperature, pressure, density, waves and currents.
A thermometer is sufficient.
count the grams of salt present in ever 1,000 grams of water
Salinity is determined by the amount of dissolved salts in water. The higher the concentration of salts, the higher the salinity of the water. Salinity is often measured in parts per thousand (ppt) or practical salinity units (PSU).
The total amount of dissolved salts in ocean water is referred to as "Salinity". :)
Salinity variations in the open ocean typically range from about 33 parts per thousand (ppt) to 37 ppt. These variations can be influenced by factors such as evaporation, precipitation, river runoff, and ocean currents. In some regions, such as coastal areas or estuaries, salinity can fluctuate more dramatically due to localized conditions. Overall, the average salinity of seawater is approximately 35 ppt.
You could increase the salinity of the ocean by adding salt or removing water (ie: by evaporation).