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Sea level drop

From Wikipedia, the free encyclopedia
Drop relative to land rebounding from weight of ice

Sea level drop refers to the phenomenon in which the shrinking weights ofmelting glaciers cause the surrounding land to rise and therelative sea level to fall.[1][2]

Background

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InHöfn, Iceland, the sea level is dropping relative to the land at a rate of about 1.7 cm (0.7 in) per year, and nearby it is dropping 3.8 cm (1.5 in) per year.[3] The effect in Iceland is mainly caused by theVatnajökull glacier. If the land rises enough, the Hornafjörður fjord would become impassable from ships, which would significantly hurt the town.[4] Other countries experience this effect as well; in a portion of Alaska and Canada, the relative sea level is falling by up to 2.0 cm (0.8 in) a year. In Norway, Sweden and Finland, an effect calledFennoscandian land elevation causes the relative sea level to fall by up to 0.7 cm (0.3 in) a year.[5][6]

See also

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References

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  1. ^Naranjo, Laura (2013-10-11)."When Oceans Drop | Earthdata".
  2. ^ClimateWire, Stephanie Paige Ogburn."A Scientist Explains the Mystery of Recent Sea-Level Drop".Scientific American. Retrieved2023-06-03.
  3. ^Kottasová, Ivana; Doran, Temujin."A drop in the ocean".www.cnn.com. Retrieved2023-06-03.
  4. ^Ástvaldsson, Jóhann Páll (2019-08-21)."Land Rising Due to Melting Glaciers".Iceland Review. Retrieved2023-06-03.
  5. ^"Land uplift".National Land Survey of Finland. Retrieved2023-06-03.
  6. ^"Where the land rises faster than the sea".correctiv.org. 2017-07-28. Retrieved2023-06-03.
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