title: Tritium Tracer in Arctic Problems.
abstract: 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.
authors.forename: B J
authors.initials: BJ
authors.lastname: Giletti
authors.forename: J L
authors.initials: JL
authors.lastname: Kulp