The Estimation of Stratified Intensity Due to Potential Energy and Its Effectivity in Uranouchi Bay

• KIMURA Haruyasu

  Faculty of Agriculture, Kochi University

• ZHANG Shouyu

  Faculty of Agriculture, Kochi University

• BAN Michikazu

  Faculty of Agriculture, Kochi University

Bibliographic Information

Other Title

• 位置エネルギーによる浦の内湾の成層強度の評価とその有効性

Abstract

The stratified intensity of water column can be estimated by measurements of temperature, salinity and density gradients between the upper and lower water layer, but the quantitative method using the Vaisala frequency or potential energy has been proved more efficient. The potential energy method was applied in this study for Uranouchi Bay (southem Japan): (1) The water column's stratified intensity was a combination of potential energy by temperature and salinity. The latter, however, appeared to have more influence on stratification. (2) The seasonal change in stratified intensity consisted of short (1-2 months), and long period (1 year), corresponding to salinity and temperature changes, respectively. (3) Beside solar radiation and precipitation, mixing by intemal waves also influenced stratified intensity. (4) The estimation of stratified intensity with potential energy is effective in expressing the phenomenon of dissolved oxygen deficiency of bottom water.

Journal

• Journal of Fisheries Engineering

  Journal of Fisheries Engineering 32 (1), 7-11, 1995

  The Japanese Society of Fisheries Engineering

Keywords

• Stratified intensity
• Potential energy
• Water temperature
• Salinity
• Dissoｌved Oｘygen

Details

• CRID: 1390001205864190592
• NII Article ID: 10008274628
• NII Article ID: 10008438552
• NII Book ID: AN10278554
• DOI: 10.18903/fisheng.32.1_7
• ISSN: 21897131
• ISSN: 09167617
• Web Site: https://agriknowledge.affrc.go.jp/RN/2010660336
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • CiNii Articles
• Abstract License Flag: Disallowed