Freshwater and temperature transports through the Tsushima-Korea Straits

Atsuhiko Isobe, Mitsuru Ando, Toshiteru Watanabe, Tomoharu Senjyu, Shigehiko Sugihara, Atsuyoshi Manda

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92 Citations (Scopus)

Abstract

Using acoustic Doppler current profiler (ADCP) and conductivity-temperature-depth (CTD) data sets obtained from 1991 to 1993, volume, freshwater, and temperature transports through the Tsushima-Korea Straits are estimated. To remove tidal currents contained in raw ADCP data, tidal currents are calculated using harmonic constants obtained by ADCP surveys from 1998 to 1999. The annual mean and range of the volume transport through the straits are 2.4 Sv (1 Sv = 106 m3/s) and 0.8 Sv, respectively. These values are consistent with those of previous studies. The annually averaged freshwater transport is 33 × 106 kg/s, which is the same as the total river discharge around the Yellow and East China Seas. This suggests that the total river discharge and freshwater transport through the Tsushima-Korea Straits are the prominent two components in the freshwater budget, averaged annually in the Yellow and East China Seas. The annually averaged temperature transport through the Tsushima-Korea Straits is 0.17 PW.

Original languageEnglish
Pages (from-to)2-1 - 2-20
JournalJournal of Geophysical Research: Oceans
Volume107
Issue number7
DOIs
Publication statusPublished - Jul 15 2002

All Science Journal Classification (ASJC) codes

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Atmospheric Science
  • Astronomy and Astrophysics
  • Oceanography

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