Evaluation of the Effect of Anoxic Water in Dredged Trenches on Blue Tides in Tokyo Bay

• SASAKI Jun

  横浜国立大学大学院工学研究院システムの創生部門

• KAWAMOTO Shinya

  横浜国立大学大学院工学府社会空間システム学専攻

• YOSHIMOTO Yuya

  横浜国立大学大学院工学府社会空間システム学専攻

• ISHII Mitsuhiro

  千葉県水産総合研究センター

• KAKINO Jun

  (株) 東京久栄 千葉県水産総合研究センター東京湾漁業研究所

Bibliographic Information

Other Title

• 東京湾の青潮に及ぼす平場と浚渫窪地水塊の影響評価

Abstract

Bule tides, upwelling of anoxic waters, have been one of the most serious environmental problems issues in Tokyo Bay. The major sources of the blue tides are considered to be the anoxic waters containing hydrogen sulfide in dredged trenches, navigation channels and the flat bottom waters at the head of the bay. The objective of the present study is to reveal each contribution to blue tide, which is still unclear, based on the estimation of time variation in the amounts of hydrogen sulfide in these waters comparing to occurrences of blue tide events.We revealed the large contribution of the flat bottom anoxic waters compared to the waters in the largest dredged trench in case of large scale blue tides.

Journal

• PROCEEDINGS OF COASTAL ENGINEERING, JSCE

  PROCEEDINGS OF COASTAL ENGINEERING, JSCE 54 1041-1045, 2007

  Japan Society of Civil Engineers

Keywords

• General Chemical Engineering

Details

• CRID: 1390282679526180736
• NII Article ID: 130003807929
• DOI: 10.2208/proce1989.54.1041
• ISSN: 18848222
• ISSN: 09167897
• ISSN: http://id.crossref.org/issn/09167897
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed