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The increase of both ocean surface temperature and deeper ocean temperature is an important effect of climate change on oceans. [11] Deep ocean water is the name for cold, salty water found deep below the surface of Earth's oceans. Deep ocean water makes up about 90% of the volume of the oceans. Deep ocean water has a very uniform temperature ...
The extent of the ocean surface down into the ocean is influenced by the amount of mixing that takes place between the surface water and the deeper water. This depends on the temperature: in the tropics the warm surface layer of about 100 m is quite stable and does not mix much with deeper water, while near the poles winter cooling and storms makes the surface layer denser and it mixes to ...
The areas with the lowest sunshine duration annually lie mostly over the polar oceans, as well as parts of northern Europe, southern Alaska, northern Russia, and areas near the Sea of Okhotsk. The cloudiest place in the United States is Cold Bay, Alaska , with an average of 304 days of heavy overcast (covering over 3/4 of the sky). [ 8 ]
By the end of the 21st century, temperatures may increase to a level last seen in the mid-Pliocene. This was around 3 million years ago. [28]: 322 At that time, mean global temperatures were about 2–4 °C (3.6–7.2 °F) warmer than pre-industrial temperatures. The global mean sea level was up to 25 metres (82 ft) higher than it is today.
The temperature in the ocean, up to approximately 700 meters deep into the ocean, has been rising almost all over the globe. [12] The increased warming in the upper ocean reduces the density of the upper ≈500 m of water, while deeper water does not experience as much warming and as great a decrease in density.
This week the surface ocean temperature of the some of the waters around Florida reached 100 degrees, near-hot tub heat levels.
Although the water temperature averages about 46 degrees in January, that doesn’t stop the Puget Sound Plungers’ weekly “Sunday service.”
The coastal regions in the southern part of the island are influenced more by open ocean water and by frequent passage of cyclones, both of which help to keep the temperature there from being as low as in the north. As a result of these influences, the average temperature in these areas in January is considerably higher, between about −20 to ...