Freshwater and temperature transports through the Tsushima-Korea Straits

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

Research output: Contribution to journalArticle

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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
Number of pages2
JournalJournal of Geophysical Research C: Oceans
Volume107
Issue number7
Publication statusPublished - Jul 15 2002

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straits
Korea
Korean Peninsula
strait
Acoustic Doppler Current Profiler
Acoustics
acoustics
Discharge (fluid mechanics)
East China Sea
tidal current
river discharge
tides
temperature
rivers
China
Temperature
volume transport
conductivity
budgets
harmonics

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Oceanography
  • Forestry
  • Aquatic Science
  • Ecology
  • Condensed Matter Physics
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Materials Chemistry
  • Palaeontology

Cite this

Freshwater and temperature transports through the Tsushima-Korea Straits. / Isobe, Atsuhiko; Ando, Mitsuru; Watanabe, Toshiteru; Senjyu, Tomoharu; Sugihara, Shigehiko; Manda, Atsuyoshi.

In: Journal of Geophysical Research C: Oceans, Vol. 107, No. 7, 15.07.2002, p. 2-1.

Research output: Contribution to journalArticle

Isobe, Atsuhiko ; Ando, Mitsuru ; Watanabe, Toshiteru ; Senjyu, Tomoharu ; Sugihara, Shigehiko ; Manda, Atsuyoshi. / Freshwater and temperature transports through the Tsushima-Korea Straits. In: Journal of Geophysical Research C: Oceans. 2002 ; Vol. 107, No. 7. pp. 2-1.
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AU - Sugihara, Shigehiko

AU - Manda, Atsuyoshi

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N2 - 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.

AB - 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.

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