Geoscience reports of Shimane University

島根大学総合理工学部地球資源環境学教室

ISSN:1343-9774

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Use this link to cite this item : https://ir.lib.shimane-u.ac.jp/6102

Geoscience reports of Shimane University 20

2001-12-28 発行

大根島淡水レンズの動態観測とトリチウム濃度

Long-term observation of the behavior of the freshwater-lens in Daikonjima lsland and tritium concentration in the groundwater

Sampei, Yoshikazu

Tokuoka, Takao

Ueno, Hiroyoshi

Fukita, Ayumi

Inoue, Takahiko

Nishioka, Kiyokazu

Suzuki, Shigenori

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c006020024.pdf 1.41 MB

Description

The gmundwater in Daikonjima island in Shimane prefecture，southwest Japan were investigated for salinity and temperature using the long-term observation system“CT-sensor”．Tritium concentrations of the groundwater supported the interpretation of the freshwater-lens behavior．Bottom fluctuation of the freshwater-lens was compared with tidal variation in Lake Nakaumi．Tidal effect was recognized in the intermediate zone below the freshwater-lens and above the high saline water．High tritium concentrations in the intermediate zone suggest the advection of new saline water from Lake Nakaumi．

About This Article

NCID

AA11455176

c006020024.pdf 1.41 MB

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