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En-en adult card 17 increase in water temperature: Difference between revisions
En-en adult card 17 increase in water temperature (view source)
Revision as of 12:57, 5 April 2021
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|title=Increase in Water Temperature | |title=Increase in Water Temperature | ||
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== Correction== | |||
===Causes=== | |||
* [[En-en_adult_card_14_energy_budget|Energy Budget]] | |||
=== Consequences === | |||
* [[En-en_adult_card_20_disruption_water_cycle|Disruption Water Cycle]] | |||
* [[En-en_adult_card_22_sea_level_rise|Sea Level Rise]] | |||
* [[En-en_adult_card_27_marine_biodiversity|Marine Biodiversity]] | |||
* [[En-en_adult_card_34_cyclones|Cyclones]] | |||
* [[En-en_adult_card_42_methane_hydrates|Methane Hydrates]] | |||
== Explanation == | == Explanation == | ||
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To measure this, you need to remember that the ocean covers 71% of the Earth's surface and that it has a depth of 4000 m on average. The atmosphere extends over a greater height, but if brought it back to the same density as water, it would only be 10 m thick. (That's why we gain one atmosphere of pressure every 10 m when we dive.) | To measure this, you need to remember that the ocean covers 71% of the Earth's surface and that it has a depth of 4000 m on average. The atmosphere extends over a greater height, but if brought it back to the same density as water, it would only be 10 m thick. (That's why we gain one atmosphere of pressure every 10 m when we dive.) | ||
The water expands very little. How can warming the ocean by a tenth of a degree result in a rise in the water level? A first answer is that the ocean is 4000 m deep on average, so a very small expansion is enough to amount to a few | The water expands very little. How can warming the ocean by a tenth of a degree result in a rise in the water level? A first answer is that the ocean is 4000 m deep on average, so a very small expansion is enough to amount to a few centimeters. A more complete explanation is given in a practical sheet. | ||
[[fr:Fr-fr_adulte_carte_17_hausse_température_eau]] | [[fr:Fr-fr_adulte_carte_17_hausse_température_eau]] | ||