大芦川流域を対象とした地下水および河川伏流水の混在場の実態調査

抄録

The influence of the river improvement on water level variation of wells located around the Oashi River was researched. Multipoint Temperature Logging and measurement of Flowing Direction and Velocity of groundwater were performed. Results of Multipoint Temperature Logging showed flowing groundwater with relatively high seepage velocity exists on upper area of the well. Results of measurement of Flowing Direction and Velocity of groundwater showed groundwater has various vertical distributions. These results showed that examination of the influence of the river improvement on groundwater condition, research in various depth in the well is quite effective.