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Title Transcription
オオハシガワ ニオケル コウエンブン スイカイ ノ ソジョウ ゲンショウ
Title Alternative (English)
Intrusion of High Salinity Water Mass into Ohashi River, San'in District of Japan
File
language
jpn
Author
Moriwaki, Shimpei
Fujii, Tomoyasu
Fukui, Katsuya
Description
Appearance of a high-salinity water mass that frequently intrudes into the Ohashi-River from the Lake Nakaumi and causes oxygen-deficient water mass in Lake Shinji in San'in District, western Japan, has been studied with special reference to the variations in water levels as well as wind patterns in Lake Nakaumi. Although no seasonal fluctuations in the high -salinity water mass index(HSI) were found, correlations seemed to exist between the monthly HSI and the water level differences as well as discharge of the Hii River. In a shorter time-scale, it was probable that the level of HSI increased when water level differences were large. The average velocity of the high-salinity water mass was estimated to be 0.44 m/s. Large HSI occurred more frequently during westerly winds than easterly ones, suggesting thereby that some of the HSI were associated with the rise of wind-induced halocline. Extensive HSI was likely to occur when the difference of water level was large and westerly winds prevailed.
Subject
high salinity water mass
Ohashi River
water level
wind
Journal Title
Laguna : 汽水域研究
Volume
10
Start Page
35
End Page
45
ISSN
21852995
Published Date
2003-03
NCID
AN10439529
Publisher
島根大学汽水域研究センター
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Estuary Research Center
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