Tritium Tracer in Arctic Problems

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Science  03 Apr 1959:
Vol. 129, Issue 3353, pp. 901-903
DOI: 10.1126/science.129.3353.901


Tritium measurements in the Arctic Ocean confirm a marked near-surface stratification. Sea water at 400 meters' depth, however, is less than 3 years old, suggesting a contribution to this water mass due to sinking along the continental shelf. The top ice layer on the Ward Hunt Island ice field is older than 25 years.