Exchange times in the Pacific Equatorial Current system

Rana A. Fine, H. Göte Östlund

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Tritium data from the GEOSECS eastern and western track stations sampled in the thermocline of the North Equatorial Counter Current (NECC) showed high values, which are indicative of the contribution of the North Equatorial Current (NEC) to the equatorial region. A tritium front at 6°N is evidence of the penetration of northern latitude water into the NECC. The results of a two-{ballot box} model show no net flux between NEC and NECC and a lower bound estimate of five years for an exchange time scale between the NEC and NECC in the thermocline; this is consistent with a horizontal diffusivity of 5 × 107 cm2/s.

Original languageEnglish (US)
Pages (from-to)447-452
Number of pages6
JournalEarth and Planetary Science Letters
Volume49
Issue number2
DOIs
StatePublished - Sep 1980

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

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