Answer and Explanation:Oceanographers can measure the salinity of a body of water in several ways, but the two most common methods are using a hydrometer set or a salinometer. A hydrometer set consists of a cylinder, a hydrometer, a thermometer, and a temperature-salinity-density or TSD graph.Click to see full answer. Regarding this, how does oceanographers define salinity?Oceanographers define salinity by the number of grams of salt per kilogram of water. It depends on how much salt that is in the ocean in certain areas. If there is a very sunny place it may evaporate a lot of water and leave a lot of salt behind so the water has a more salinity.Additionally, how does a hydrometer measure salinity? Hydrometers: Measuring Oceans Salinity. Hydrometers are used to measure the oceans salinity, or how “salty” the ocean is. To use a hydrometer you must fill up the tool with saltwater and then observe how much the lever is raised by the salinity. We like to use the measurement PPT or Parts per Thousand. Regarding this, what tool would an oceanographer use to measure salinity? A CTD or Sonde is an oceanography instrument used to measure the conductivity, temperature, and pressure of seawater (the D stands for “depth,” which is closely related to pressure). The reason to measure conductivity is that it can be used to determine the salinity.Why is salinity measured?Salinity is an important measurement in seawater or in estuaries where freshwater from rivers or streams mixes with salty ocean water since aquatic organisms have varying abilities to survive and thrive at different salinity levels. Salinity affects the dissolved oxygen levels in water.
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