FLOW CHARACTERISTICS OF SAGAMI LAKE FOCUSING ON DIFFERENCE IN WATER DISCHARGE CONDITION

• SUZUKI Takayuki

  横浜国立大学 大学院都市イノベーション研究院

• KOIKE Yohei

  青木あすなろ建設株式会社 東京土木本店工事部

• SASAKI Jun

  東京大学 大学院新領域創成科学研究科社会文化環境学専攻

• TANAKA Yoji

  東京都市大学 工学部都市工学科

Bibliographic Information

Other Title

• 発電放流に着目した相模湖の流況変動

Abstract

 Appearance of blue-green-algae blooms in summer is still one of the serious water quality problems in Sagami Lake, Kanagawa, Japan, although several countermeasures have been implemented to mitigate it. Since the control of water discharge for hydropower generation is now considered as one of the possible measures, we tried to understand the difference in circulation patterns in the lake during both durations of operating and non-operating water discharge. Field data for currents and water temperature were collected in August, 2012. From the results, we found that during the period operating discharge, water flows into the lower layer following the meandering bathymetry. On the other hand, during the non-operation period, though overall currents become weak, adverse currents are observed in the upper layer of the upstream part of the lake.

Journal

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

  Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 71 (1), 11-15, 2015

  Japan Society of Civil Engineers

Keywords

• Sagami Lake
• water discharge
• water circulation

Details

• CRID: 1390282680330166016
• NII Article ID: 130004961431
• DOI: 10.2208/jscejhe.71.11
• ISSN: 2185467X
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed