FIELD SURVEY ON A RELATIONSHIP BETWEEN DEVELOPMENT AND DECAY PROCESSES OF SALINITY STRATIFICATION DUE TO FLOODS AND TURBULENT STRUCTURES IN THE NORTHERN ARIAKE SEA

• YANO Shinichiro

  九州大学大学院 工学研究院環境社会部門

• KITAGAWA Yohei

  九州大学大学院 工学府海洋システム工学専攻

• TAI Akira

  九州大学 高等研究院

• KIM Sangyeob

  長崎大学大学院 工学研究科生産システム工学専攻

• TADA Akihide

  長崎大学大学院 工学研究科システム科学部門

Bibliographic Information

Other Title

• 北部有明海における出水に起因する塩淡成層の消長過程と乱流構造の関係についての現地調査
• ホクブ アリアケカイ ニ オケル シュッスイ ニ キイン スル エンタンセイソウ ノ ショウチョウ カテイ ト ランリュウ コウゾウ ノ カンケイ ニ ツイテ ノ ゲンチ チョウサ

Abstract

 To understand difference of density stratification due to freshwater transport from rivers through flood events and tidal range (spring tide or neap tide), four time 25 hours continuous field measurement on tidal current, CTD, turbulence micro-structure, and suspended solid (SS) particle size property were conducted at a point in the northern Ariake Sea in summer and winter in 2014. From the results, the followings were clarified: 1) sub-tidal development and decay process of saline-freshwater stratification during flood season was clearly measured; 2) Turbulent energy dissipation rate was correlated to mean flow velocity in spring tide in winter only, but not in neap tide and in stratified spring tide; and 3) Tempo-vertical profiles of eddy viscosity and dissolved oxygen were related to condition of stratification.

Journal

• Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 72 (4), I_943-I_948, 2016

  Japan Society of Civil Engineers

Keywords

• baroclinic structure
• salinity stratification
• turbulent structure
• freshwater
• Ariake Sea

Details

• CRID: 1390001205351775616
• NII Article ID: 130005312155
• NII Book ID: AN10426673
• ISSN: 18808751
• ISSN: 2185467X
• ISSN: 09167374
• DOI: 10.2208/jscejhe.72.i_943
• NDL BIB ID: 027185865
• Web Site: http://id.ndl.go.jp/bib/027185865
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027185865
• Web Site: https://www.jstage.jst.go.jp/article/jscejhe/72/4/72_I_943/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed