To withstand the rigors of waves, wind, and sometimes ice, oceanographic research vessels must be large, sturdy, and well designed. Here, Capt. A.D. Colburn, right, crew member Bill Dunn, and others use ice mallets to break up ice that formed on the foredeck of R/V Knorr during a research cruise in the Labrador Sea. (Photo by George Tupper, Woods Hole Oceanographic Institution)[back]
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