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Platelet ice under Arctic pack ice in winter

Permanent lenke
https://hdl.handle.net/10037/20711
DOI
https://doi.org/10.1029/2020GL088898
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article.pdf (8.065Mb)
Publisert versjon (PDF)
Dato
2020-08-17
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Katlein, Christian; Mohrholz, Volker; Sheikin, Igor; Itkin, Polona; Divine, Dmitry; Stroeve, Julienne C.; Jutila, Arttu; Krampe, Daniela; Shimanchuk, Egor; Raphael, Ian; Rabe, Benjamin; Kuznetsov, Ivan; Mallet, Maria; Liu, Hailong; Hoppmann, Mario; Fang, Ying‐Chih; Dumitrascu, Adela; Arndt, Stefanie; Anhaus, Philipp; Nicolaus, Marcel; Matero, Ilkka; Oggier, Marc; Eicken, Hajo; Haas, Christian
Sammendrag
The formation of platelet ice is well known to occur under Antarctic sea ice, where subice platelet layers form from supercooled ice shelf water. In the Arctic, however, platelet ice formation has not been extensively observed, and its formation and morphology currently remain enigmatic. Here, we present the first comprehensive, long‐term in situ observations of a decimeter thick subice platelet layer under free‐drifting pack ice of the Central Arctic in winter. Observations carried out with a remotely operated underwater vehicle (ROV) during the midwinter leg of the MOSAiC drift expedition provide clear evidence of the growth of platelet ice layers from supercooled water present in the ocean mixed layer. This platelet formation takes place under all ice types present during the surveys. Oceanographic data from autonomous observing platforms lead us to the conclusion that platelet ice formation is a widespread but yet overlooked feature of Arctic winter sea ice growth.
Forlag
Wiley
Sitering
Katlein, Mohrholz, Sheikin, Itkin, Divine, Stroeve, Jutila, Krampe, Shimanchuk, Raphael, Rabe, Kuznetsov, Mallet, Liu, Hoppmann, Fang, Dumitrascu, Arndt, Anhaus, Nicolaus, Matero, Oggier, Eicken, Haas. Platelet ice under Arctic pack ice in winter. Geophysical Research Letters. 2020
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  • Artikler, rapporter og annet (fysikk og teknologi) [1057]
Copyright 2020 The Author(s)

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