Artificial upwelling of deep seawater using the perpetual salt fountain for cultivation of ocean desert

Shigenao Maruyama, Koutaro Tsubaki, Keisuke Taira, Seigo Sakai

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Deep seawater in the ocean contains a great deal of nutrients. Stommel et al. have proposed the notion of a "perpetual salt fountain" (Stommel et al., 1956). They noted the possibility of a permanent upwelling of deep seawater with no additional external energy source. If we can cause deep seawater to upwell extensively, we can achieve an ocean farm. We have succeeded in measuring the upwelling velocity by an experiment in the Mariana Trench area using a special measurement system. A 0.3 m diameter, 280 m long soft pipe made of PVC sheet was used in the experiment. The measured data, a verification experiment, and numerical simulation results, gave an estimate of upwelling velocity of 212 m/day.

Original languageEnglish
Pages (from-to)563-568
Number of pages6
JournalJournal of Oceanography
Volume60
Issue number3
DOIs
Publication statusPublished - 2004 Jun 1

Keywords

  • Deep seawater
  • Enhancement of bio-production
  • Flow measurement
  • Heat transfer
  • Natural convection
  • Perpetual salt fountain
  • Upwelling

ASJC Scopus subject areas

  • Oceanography

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