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A Year in the Ice

MOSAiC: Multidisciplinary Drifting Observatory for the Study of Arctic Climate

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Continue the Journey with MOSAiC Data Puzzles


Bring real MOSAiC datasets into your classroom!
Temperature change over time

Escape to the Central Arctic... online!

Your computer is now a portal to the North Pole. Explore one of the most remote, mysterious regions on Earth from the comfort of your own home.
New MOSAiC MOOC

MOSAiC Expedition Transfers

Check out the latest from those on-board the RV Polarstern, and read about the challenges they face during the leg transitions of crew, researchers, and gear.
MOSAiC Expedition Page
Jan Rohde

MOSAiC is an international expedition to study the Arctic climate system, from ocean to ice to atmosphere. Over 500 scientists...more than 16 nations...12 months...frozen in the ice. Learn more.

Recent News

ARM deployed radars, lidars, aerosol particle counters, and other atmospheric instrumentation on the bow of the Polarstern, the mother ship of the MOSAiC expedition overseen by Germany’s Alfred Wegener Institute (AWI). Photo is by Christian Rohleder, AWI. MOSAiC: A Sustained Echo of Data
February 17, 2021
DOE ARM - More than once during...
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Polarstern In pictures: Following the mission...
January 23, 2021
James Cutmore, BBC - On 19 August 2020...
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Frank Jordans/AP German Arctic research vessel Polarstern is docked for maintenance in Bremerhaven, Germany, July 3, 2019. For Colorado Scientists on Yearlong...
December 31, 2020
Michelle P. Fulcher, CPR - From the start...
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Photo by Lianna Nixon, CIRES/CU Boulder MOSAiC Arctic expedition ends...
December 20, 2020
Katie Langford, Boulder Daily Camera - After...
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Known as Miss Piggy, the weather balloon collects data within the few thousand feet of atmosphere above the ice. Graeser wears a red snowsuit, and the ship Polarstern is visible in the distance. December 12, 2019. Photo: Esther Horvath Scientists Braved the High Arctic...
December 18, 2020
Hannah Waters, Audubon - The high Arctic...
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Credit: Stefan Hendricks A Year in the Arctic...
December 15, 2020
Tom Yulsman, Discover - Most of the crew...
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