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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.
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.

More than once during...