• Title/Summary/Keyword: mini-piezometer

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열추적자를 이용한 지하수-하천수 혼합대 연구

  • Kim Gu-Yeong;Jeon Cheol-Min;Kim Tae-Hui;Seong Hyeon-Jeong;O Jun-Ho;Kim Yong-Je;Jeong Jae-Hun;Park Seung-Gi
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2006.04a
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    • pp.277-281
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    • 2006
  • A study on stream-groundwater exchange was performed using head and temperature data of stream water, streambed, and groundwater. Groundwater level and temperature were obtained from multi-depth monitoring wells in small-scale watershed. In the summer time, time series of temperatrue data at streambed and groundwater were monitored for three months. In the winter time, we measured the temperature gradient between stream water and streambed. The observed data showed three typical types of temperature characteristics. First, the temperature of streambed was lower than that of stream water; second, the temperature of streambed and stream water was similar; and last, the temperature of streambed was higher than that of stream water. The interconnections between the stream and the streambed were not homogeneously distributed due to weakly developed sediments and heterogeneous bedrock exposed as bed of the stream. The temperature data may be used in formal solutions of the inverse problems to estimate groundwater flow and hydraulic conductivity.

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Use of a Temperature as a Tracer to Study Stream-groundwater Exchange in the Hyporheic Zone (열추적자를 이용한 지하수-하천수 혼합대 연구)

  • Kim, Kue-Young;Chon, Chul-Min;Kim, Tae-Hee;Oh, Jun-Ho;Jeoung, Jae-Hoon;Park, Seung-Ki
    • Economic and Environmental Geology
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    • v.39 no.5 s.180
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    • pp.525-535
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    • 2006
  • A study on stream-groundwater exchange was performed using head and temperature data of stream water, streambed, and groundwater. Groundwater level and temperature were obtained from multi-depth monitoring wells in small-scale watershed. During the summer and winter season, time series of temperature data at streambed and groundwater were monitored for six months. In the winter time, we measured the temperature gradient between stream water and streambed. The observed data showed three typical types of temperature characteristics. First, the temperature of streambed was lower than that of stream water; second, the temperature of streambed and stream water was similar; and the last, the temperature of streambed was higher than that of stream water. The interconnections between the stream and the streambed were not homogeneously distributed due to weakly developed sediments and heterogeneous bedrock exposed as bed of the stream. The temperature data may be used in formal solutions of the inverse problems to estimate groundwater flow and hydraulic conductivity.