what is the average salinity of the world ocean
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- 4. Salinity is the proportion of dissolved salts to pure water, usually expressed in parts per thousand. The average salinity of seawater is 3.5% or 35 parts per thousand.
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- The average temperature of the ocean surface water is about 17 °C (62.6 F).. 17 °C. So even though surface waters can be a comfortable 20 degrees Celsius (good for swimming in!), the majority of our ocean water has a temperature between 0-3 degrees Celsius (32-37.5 degrees Fahrenheit)..
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- The open ocean typically has surface salinities between 32 and 37 ppt. The salinity may be lower near where large rivers drain into the ocean. The salinity of 75% of the water in the ocean is between 34 and 35 ppt.The surface ocean salinity is high in the subtropics because of all the evaporation.he salinity of 75% of the water in the ocean is between 34 and 35 ppt. The surface ocean salinity is high in the subtropics because of all the evaporation.
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- Oceanographers report salinity (total salt content) and the concentrations of individual chemical constituents in sea water in parts per thousand (also called parts per mil), for which the symbol o /oo is used.
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(o). Introduction to the Oceans The average depth of these extensive bodies of sea water is about 3.8 kilometers (2.4 miles). Maximum depths can exceed 10 kilometers (6.2 miles) in a number of areas known as ocean trenches. The oceans contain 97% of our planet's available water. The other 3% is found in atmosphere, on the Earth's terrestrial surface, or in the Earth's lithosphere in various forms and stores (see the Hydrologic Cycle).
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- 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.
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Temperature of Ocean Water The average temperature of the ocean surface waters is about 17 degrees Celsius (62.6 degrees Fahrenheit). 90 % of the total volume of ocean is found below the thermocline in the deep ocean. The deep ocean is not well mixed. The deep ocean is made up of horizontal layers of equal density.
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Temperature of Ocean Water The average temperature of the ocean surface waters is about 17 degrees Celsius (62.6 degrees Fahrenheit). 90 % of the total volume of ocean is found below the thermocline in the deep ocean. The deep ocean is not well mixed.
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- 7. Salinity Summary 8. Calculating Salinity 9. Ocean Temperature 10. Solar Radiation 11. Properties 12. Light Penetration 13. Temperature 14. Thermocline 15. Density 16. Layering . Here is a map showing the salinity of the surface waters of the ocean, down to a water depth of 50 meters, in parts of dissolved salt per 1000 (o /oo) parts of sea water. Image produced by WOCE Ocean Modeling at the Naval Postgraduate School
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2012 State of the Climate: Sea Surface Temperature Sea surface temperature—the average temperature of water at the surface of the global ocean—is a key indicator of the ocean's staus. Because the ocean is constantly interacting with the atmosphere, changes in sea surface temperature can have profound effects on other aspects of Earth's climate.rom 2011-2012, as a weak La Nina niña transitioned to more neutral, conditions average sea surface temperature for the global ocean warmed by about.0 1º. celsius
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Ocean The average depth of the world's oceans is 12,430 feet with the deepest point being the Mariana Trench with a depth of 6.8 miles.he average depth of the world's oceans is 12,430 feet with the deepest point being the Mariana Trench with a depth of 6.8 miles.
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Salton Sea and Salinity The salinity of the Pacific Ocean is approximately 35,000 mg/L (1 ppm=1 mg/L). Colorado River water salinity is about 650-700 mg/L. Salton Sea salinity is about 44,000 mg/L, that is approximately 4.4% salt. The amount of salts that is deposited in the Imperial Valley agricultural land with irrigation water is approximately four million tons of salts annually.
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- Generally, the Atlantic Ocean receives around 50 inches of rain per  year. This amount varies from year to year. The oceans receive  around 80 percent of the Earth's rainfal … l each year.Answered.hat is 10,911 metres (35,797 ft) or 7 miles deep. And … also in the Pacific Ocean. So I don't think the average depth of the Atlantic is 7 miles. The Average Depth of the Atlantic is about 11,810 feet or 2.236 miles.
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- Typically, the salinity decreases from the surface ocean to deep waters is very small, from about 36 g/L (ppt) at the surface to 35 g/L (ppt) in the deep water, thus there is a very small density decrease with depth given a constant temperature.
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Seawater The salinity of the water is measured with a CTD instrument (Conductivity, Temperature, Depth). The conductivity is used to calculate the salinity in conjunction with the temperature and depth (pressure) measurements.Seawater has an average density of 1.027 gm/cm 3, but this varies with temperature and salinity over a range of about 1.020 to 1.029.he salinity of the water is measured with a CTD instrument (Conductivity, Temperature, Depth). The conductivity is used to calculate the salinity in conjunction with the temperature and depth (pressure) measurements.
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- Three major factors influence salinity (salt concentration) in Pacific Ocean waters: precipitation, evaporation and winds. Precipitation brings freshwater into the ocean, diluting its salt concentration. The rate of evaporation from the ocean s surface waters is also important because it removes water molecules, leaving the salt behind. In regions where the evaporation is high, due to winds and high temperatures, the concentration of salt in the water increases. As a result, areas of water exposed to the strong trade-winds generally have higher salinity values. The salinity of ocean water is measured in parts per thousand. High salinity values are over 35 parts per thousand, while values below this are considered low. Around the equator, where there is large amounts of rainfall, surface salinity rarely exceeds 34 parts per thousand.
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Deep ocean water When deep ocean water is brought to the surface, it can be used for a variety of things. Its most useful property is its temperature. At the surface of the Earth, most water and air is well above 3 °C. The difference in temperature is indicative of a difference in energy.eep ocean water has a very low temperature, typically from 0-3 °C (32-38 °F), and a salinity of about 3.5% or as oceanographers state as 35 ppt (parts per thousand).
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Seawater Seawater, or salt water, is water from a sea or ocean. On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, or 599 mM), which is a specific gravity of about 1.025.This means that every kilogram (roughly one litre by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salts (predominantly sodium (Na+) and chloride (Cl−) ions).Average density at the surface is 1.025 g / ml.Seawater is denser than both fresh water and pure water (density 1.0 g/ml at 4 °C (39 °F)) because the dissolved salts increase the mass by a larger proportion than the volume. The freezing point of seawater decreases as salt concentration increases.n average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, or 599 mM), which is a specific gravity of about 1.025.
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- The salinity of the open ocean ranges from about 33 to 38 parts per thousand and the target accuracy of satellites is to measure differences of 0.2 parts per thousand. That is like measuring the change in salinity from adding a pinch of salt to a gallon of waters.he salinity of the open ocean ranges from about 33 to 38 parts per thousand and the target accuracy of satellites is to measure differences of 0.2 parts per thousand. That is like measuring the change in salinity from adding a pinch of salt to a gallon of waters.
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Volume of Earth's Oceans Average depth: 13,740 feet (4,188 m). Deepest point: 36,200 feet (11,033 m) in the Mariana Trench. Other Ocean facts: 1  At 39 degrees Fahrenheit, the temperature of almost all of the deep ocean is only a few degrees above freezing.
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Chapter 9 - Questions 4. Salinity is the proportion of dissolved salts to pure water, usually expressed in parts per thousand. The average salinity of seawater is 3.5% or 35 parts per thousand.ssuming the average speed of sound waves in water is 1500 meters per second, determine the water depth if the signal sent out by an echo sounder requires 6 seconds to strike bottom and return to the recorder.
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Chemistry of Seawater 1 Salinity is approximately equal to the weight, in grams, of salt dissolved in 1000 g of seawater. 2  This would be the salt concentration in parts per thousand 3  (). Average ocean water has a salinity of 35.0. 4  This means that 1000 g of average seawater contains 965 g of water and 35 g of salts.. Salinity is related to the concentration of dissolved salts in seawater. In the past, salinity of seawater was measured by evaporating the water and weighing the amount of salt remaining. Since that approach is difficult and inaccurate, electrical conductivity of seawater is now used to measure salinity.
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Volume of Earth's Oceans The world's oceans comprise 97.3% of the total water on earth and consists of 5 oceans: Atlantic, Pacific, Indian, Arctic, and Southern. The current range for the volume of the world's ocean is from 1.3 to 1.5 billion cubic kilometers and it will still get larger and larger as time passes.he average depth of the oceans is 2.5 miles (4 km). The deepest point lies in the Mariana Trench, 6.8 miles (10.9 km) down. By the way in comparison, Mount Everest is only 5.5 miles (8.8 km) high.
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- The Briny Deep. Menu. Here is a map showing the salinity of the surface waters of the ocean, down to a water depth of 50 meters, in parts of dissolved salt per 1000 (o/oo) parts of sea water.
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Where is the salinity of the ocean when its levels are high? Is it at the equator, the north pole or at the tropic? Temperature and density of ocean water are related inversely: warm water means low density, cold water means denser seawater. The salt content of the water also affects Ocean density. Sea Surface Salinity: Sea water is about a 3.49% salt solution, the rest is freshwater. The more saline, the denser the seawater. As the range of salt concentration in the ocean varies from about 3.2 to 3.8%, oceanographers refer to salt content as 'salinity', express salt concentration as parts per thousand; 34.9 ppt is the average salinity.
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2012 State of the Climate: Sea Surface Temperature From 1970-1999, global sea surface temperature rose at an average rate of 0.06 to 0.11º Celsius per decade. The rate decreased from 2000-2012 due to a prevalence of La Nina-niña like. conditionsrom 2011-2012, as a weak La Nina niña transitioned to more neutral, conditions average sea surface temperature for the global ocean warmed by about.0 1º. celsius