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Title :感潮河川周辺域の不圧帯水層における塩水侵入の変動特性
Title alternative :VARIATIONS OF SALT WATER INTRUSION IN A UNCONFINED AQUIFER NEAR THE TIDAL RIVER
Authors :安元, 純
上荒磯, 聡
六車, 麗子
藤原, 拓
大年, 邦雄
Yasumoto, Jun
Kamiaraiso, Satoshi
Muguruma, Reiko
Fujiwara, Taku
Ohtoshi, Kunio
Issue Date :2006
Abstract :Salt water intrusion in a coastal aquifer varies corresponding to the sea level and rainfalls. The influence of tidal river might be added to the behavior of salt water intrusion when the aquifer locates near the tidal river. Consequently it is easy to understand that the behavior of salt water bodies in such a situation will be quite complicated. The present study describes the findings about the salt water intrusion on the basis of the long-term field measurements conducted near a tidal river. Following findings were obtained: 1) The interface of fresh-salt water bodies in an aquifer consists of a wide mixing zone. 2) The depth of mixing zone varies cyclically and more largely during a spring tide than a neap tide. 3) Rainfalls may have the possibility to uplift the upper mixing zone remarkably for a short period after the rainfall event. Such possibility has to be verified in the future.
URL :https://doi.org/10.2208/prohe.50.253
Type Local :雑誌掲載論文
ISSN :1884-9172
0916-7374
Publisher :公益社団法人土木学会
URI :http://hdl.handle.net/20.500.12000/46106
Citation :水工学論文集 Vol.50 p.253 -258
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Agriculture)

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