Sea level drop refers to the phenomenon in which the shrinking weights of melting glaciers cause the surrounding land to rise and the relative sea level to fall. [1] [2]
Background
In Höfn, 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 the Vatnajökull 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 called Fennoscandian land elevation causes the relative sea level to fall by up to 0.7 cm (0.3 in) a year. [5] [6]
See also
References
- ^ Naranjo, Laura (2013-10-11). "When Oceans Drop | Earthdata".
- ^ ClimateWire, Stephanie Paige Ogburn. "A Scientist Explains the Mystery of Recent Sea-Level Drop". Scientific American. Retrieved 2023-06-03.
- ^ Kottasová, Ivana; Doran, Temujin. "A drop in the ocean". www.cnn.com. Retrieved 2023-06-03.
- ^ Ástvaldsson, Jóhann Páll (2019-08-21). "Land Rising Due to Melting Glaciers". Iceland Review. Retrieved 2023-06-03.
- ^ "Land uplift". National Land Survey of Finland. Retrieved 2023-06-03.
- ^ "Where the land rises faster than the sea". correctiv.org. 2017-07-28. Retrieved 2023-06-03.
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