The effect of wind on long-term summer water temperature trends in Tokyo Bay, Japan

Li Feng Lu, Ryo Onishi, Keiko Takahashi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The effect of wind on summer water temperature trends in a semi-closed bay (Tokyo Bay, Japan) is examined through several numerical experiments using a high-resolution three-dimensional ocean model. The model is executed under no-wind and uniform southerly/northerly wind conditions, and monthly mean currents and temperature distributions and heat transport in Tokyo Bay for July are calculated. The model results show that wind has a significant effect on heat transport and temperature distribution in the bay. (1) When a southerly wind prevails northward cool water transport intensifies while southward warm water transport declines, thus decreasing the water temperature in the central bay area while increasing temperature at the bay head. (2) A northerly wind has an opposing effect and decreases the water temperature in coastal bay head area while increase the temperature along the southwest coast. The results also suggest that the trend of increasing southerly wind amplitude may have affected water temperature trends in Tokyo Bay from 1979 to 1997. The model results demonstrated that the an intensified southerly wind lowers water temperatures in most areas of the bay by enhancing upwelling and open ocean-water intrusion near the bay mouth while increases temperatures in the bottom layer of the bay head by suppressing southward warm water transport.

Original languageEnglish
Pages (from-to)919-930
Number of pages12
JournalOcean Dynamics
Volume65
Issue number6
DOIs
Publication statusPublished - 2015 Jun 26
Externally publishedYes

Keywords

  • Heat transport
  • Tokyo Bay
  • Water temperature trends
  • Wind

ASJC Scopus subject areas

  • Oceanography

Fingerprint Dive into the research topics of 'The effect of wind on long-term summer water temperature trends in Tokyo Bay, Japan'. Together they form a unique fingerprint.

Cite this