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New measurements reveal: Great variation in the thickness of ice in the Bay of Bothnia

New measurements reveal: Great variation in the thickness of ice in the Bay of Bothnia

Electromagnetic measurements of ice thickness taken from helicopters and vessels, and comparisons made between them and more traditional observation methods reveal that the thickness of ice on the Bay of Bothnia varies greatly from year to year.

The study examined variations in the thickness of ice on the Bay of Bothnia with the help of comprehensive observations from 2003 to 2016. Variations in the thickness of drift ice have not been studied before.

Information on the variations of ice thickness is of great value for wintertime shipping.

Further information:

Researcher Iina Ronkainen, Finnish Meteorological Institue, tel. +358 50 460 6759, iina.ronkainen@fmi.fi

Ronkainen, I., Lehtiranta, J., Lensu, M., Rinne, E., Haapala, J., and Haas, C.: Interannual sea ice thickness variability in the Bay of Bothnia, The Cryosphere, 12, 3459-3476, 2018. https://doi.org/10.5194/tc-12-3459-2018

https://www.the-cryosphere.net/12/3459/2018/tc-12-3459-2018.pdf


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