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タイトルヨミ
ナカウミ ニ シュツゲンスル ヒンサンソ スイカイ ノ カイキョウガクテキ トクセイ ト カイヨウ コウゾウ
日本語以外のタイトル
Relation between Hydrographic Feature of the Oxygen-deficient Water Mass and Oceanographic structure
ファイル
言語
日本語
著者
森脇 晋平
大北 晋也
内容記述(抄録等)
This paper attempts to describe the oceanographic structure of Lake Nakaumi, a semi-closed brackish water body connected to the Japan Sea, focusing on hydrographic feature of oxygen-deficient water mass. The study is based on monthly hydrographic observations made from April 2000 through to March 2001. The water mass characteristics were investigated by the station graph analysis. Three different types of water masses, namely, upper layer water, bottom layer water and riverine water appeared through the year. An oxygen-deficient water mass occurred from May to December. Its maximum volume was estimated to be c.40% of the entire volume of the Lake Nakaumi. The volume of the oxygen-deficient water mass increased from June to November corresponding to the occurrence of the bottom layer water mass, indicating that the bottom layer water induced from the Japan Sea rapidly turned into the oxygen deficient water mass during the high-temperature season. The decrease in volume of oxygen-deficient water mass in September was probably caused by the exchange of water mass due to the occurrence of a flush flood.
主題
Lake Nakaumi
oceanographic feature
oxygen-deficient water mass
掲載誌名
Laguna : 汽水域研究
10
開始ページ
27
終了ページ
34
ISSN
21852995
発行日
2003-03
NCID
AN10439529
出版者
島根大学汽水域研究センター
資料タイプ
紀要論文
ファイル形式
PDF
著者版/出版社版
出版社版
部局
研究・学術情報本部 エスチュアリー研究センター
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