Estimating Exploitable Groundwater Amount in Musimcheon Watershed by Using an Integrated Surface Water-Groundwater Model

Chung, Il-Moon; Lee, Jeong-Woo; Kim, Nam-Won

doi:10.9719/eeg.2011.44.5.433

Cited by 11 publications

(6 citation statements)

References 7 publications

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“…(Chung et al, 2011), 수위/온도 계측자료 기반의 연 구 (Kim et al, 2006;Ha et al, 2006;Jeon and Kim, 2011), 수질 자료에 의한 연구 (Hyun et al, 2006;Moon et al, 2015) 등이 있다. (Clark and Fritz, 1997).…”

Section: 서 언 지하수와 지표수는 서로 분리된 것이 아니며 수리unclassified

Groundwater-Stream Water Interaction Induced by Water Curtain Cultivation Activity in Sangdae-ri Area of Cheongju, Korea

Moon¹,

Kim²,

Jeong³

et al. 2016

Economic and Environmental Geology

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Most of riverside in Korea, in case of application of water curtain cultivation (WCC) technique, has been inveterately suffering from the gradual drawdown of groundwater level and related shortage of water resources during the WCC peak time. We believe that the water resources issue in these riverside areas can be effectively solved when the interaction between groundwater and nearby surface water is well understood. To investigate the connection between stream and ground water, and the influence of stream water on the nearby aquifer, this study examined the water temperature and oxygen and hydrogen stable isotopic compositions. The study area is well-known strawberry field applying the WCC technique in Sangdae-ri, Gadeok-myon, Cheongju City, and the sampling was done from February 2012 through June 2014 for stream and ground water. Some groundwater wells near stream showed big temporal variations in water temperature, and their oxygen and hydrogen stable isotopes showed similar compositions to those of adjacent stream water. This indicates that the influence of stream water is highly reflected in the stable isotopic composition of groundwater. Four cross-sectional lines from stream to hillside were established in the study area to determine the spatial differences in water quality of wells. At the late stage of WCC in February to March, groundwater of wells in line with short cross-sectional length showed the narrow range of isotopic compositions; however, those in the long cross-sectional line showed a wide compositional range. It was shown that the influence of the stream water at the late WCC stage have reached to the distance of 160 to 165 m from stream line, which is equivalent to the whole length and one-third point in each short and long cross-sectional line, respectively. Therefore, the wide compositional range in the long cross-sectional lines was not only due to the influence of stream water, but apparently resulted from the change of relative impact of each groundwater supplying from two or more aquifers. In view of stable isotopic compositions, there seems to be three different aquifers in this study area, which is competing for dominance of water quality in wells at each period of WCC.

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Section: 서 언 지하수와 지표수는 서로 분리된 것이 아니며 수리unclassified

Groundwater-Stream Water Interaction Induced by Water Curtain Cultivation Activity in Sangdae-ri Area of Cheongju, Korea

Moon¹,

Kim²,

Jeong³

et al. 2016

Economic and Environmental Geology

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“…Kwon et al [13] assessed the groundwater development amount using a daily distributed rainfall runoff model, which considers the topographic and soil characteristics of a basin. Kim et al [14], Kim et al [10], Chung et al [15], and Chung et al [16] quantitatively analyzed groundwater by calculating the surface runoff, lateral runoff, and groundwater runoff components from precipitation after linking the SWAT and MODFLOW models and by estimating the groundwater recharge. Kim et al [17] estimated the hydrologic parameters for the Jeju area by using a groundwater-level variation analysis model.…”

Section: Introductionmentioning

confidence: 99%

“…Data requirements for MODFLOW were to define the aquifer properties such as the hydraulic conductivity and the boundary conditions such as recharge and constant heads. Although the previous research using SWAT-MODFLOW has been conducted in South Korea [10,[14][15][16], but the application of large basins is limited. The Geum River Basin is the third largest basin in South Korea, there is not enough input data (i.e., stream bed thickness, hydraulic conductivity, riverbed filtration) for the MODFLOW, we analyzed using SWAT only.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Climate Change Impact on Future Groundwater-Level Behavior Using SWAT Groundwater-Consumption Function in Geum River Basin of South Korea

Lee

Jung²,

Kim

et al. 2019

Water

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This study was to evaluate the groundwater-level behavior in Geum River Basin (9645.5 km2) of South Korea with HadGEM3-RA RCP 4.5 and 8.5 climate change scenarios and future groundwater use data using the soil and water assessment tool (SWAT). Before evaluating future groundwater behavior, the SWAT model was calibrated and validated using the daily inflows and storage of two dams (DCD and YDD) in the basin for 11 years (2005–2015), the daily groundwater-level observation data at five locations (JSJS, OCCS, BEMR, CASS, and BYBY), and the daily inflow and storage of three weir locations (SJW, GJW, and BJW) for three years and five months (August 2012 to December 2015). The Nash–Sutcliffe efficiency (NSE) and the coefficient of determination (R2) of two dam inflows was 0.55–0.70 and 0.67–0.75. For the inflows of the three weirs, NSE was 0.57–0.77 and R2 was 0.62–0.81. The average R2 value for the groundwater levels of the five locations ranged from 0.53 to 0.61. After verifying the SWAT for hydrologic components, we evaluated the behavior of future groundwater levels by future climate change scenarios and estimated future ground water use by Korean water vision 2020 based on ground water use monitoring data. The future groundwater-level decreased by −13.0, −5.0, and −9.0 cm at three upstream locations (JSJS, OCCS, and BEMR) among the five groundwater-level observation locations and increased by +3.0 and +1.0 cm at two downstream locations (CASS and BYBY). The future groundwater level was directly affected by the groundwater recharge, which was dependent on the seasonal and spatial precipitations in the basin.

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“…따라서 지하수 양수로 인한 하천수량의 변화를 분석 하기 위한 모델링 기반의 다양한 연구들(e.g., Sophocleous, 1995;Perkins and Sophocleous, 1999;Sophocleous and Perkins, 2000;Nyholm et al, 2003;Zume and Tarhule, 2008;Kim and Jeong, 2009)이 수행되어 왔다. 특히 최근 들어 국내에서는 유역 단위로 지하수 이용 영향을 분석한 연구들 (Lee et al, 2006;Lee, 2008;Chung et al, 2011;Kim et al, 2012)이 있었다. Lee et al (2006) (1) …”

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Assessment of Streamflow Depletion Due to Groundwater Pumping from a Well

Il-Moon¹,

Kim²,

Chung³

2013

Journal of Korea Water Resources Association

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Groundwater pumping from a well has different impacts on streamflow depletion because hydraulic properties of the aquifer and the stream bed differ depending on its location. Therefore, quantitative assessment of streamflow depletion due to each groundwater pumping with different well locations is needed for the effective groundwater development and streamflow management. In this study, a watershed-based surface water and groundwater integrated model, SWAT-MODFLOW was used to assess the streamflow depletion near stream reach due to groundwater pumping from a well located within the Sinduncheon watershed. The arbitrary 50 wells among the currently used groundwater pumping wells were selected within the study area and the streamflow responses to each groundwater pumping were simulated at nearby and downstream reaches. In particular, the applicability of the Stream Depletion Factor (SDF) and Stream Bed Factor (SBF), which are widely used for evaluating the degree of streamflow depletion due to groundwater pumping, was evaluated. The simulated results demonstrated that the streamflow depletion rate divided by the pumping rate significantly differ depending on well locations and distance between well and stream, showing a wide range of values from below 20% to above 90%. From the simulated results, it was found out that the SDF or the SBF can be a partial referred value but not an absolute criterion in determining whether a pumping well has a great impact on streamflow depletion or not.

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Estimating Exploitable Groundwater Amount in Musimcheon Watershed by Using an Integrated Surface Water-Groundwater Model

Cited by 11 publications

References 7 publications

Groundwater-Stream Water Interaction Induced by Water Curtain Cultivation Activity in Sangdae-ri Area of Cheongju, Korea

Groundwater-Stream Water Interaction Induced by Water Curtain Cultivation Activity in Sangdae-ri Area of Cheongju, Korea

Assessment of Climate Change Impact on Future Groundwater-Level Behavior Using SWAT Groundwater-Consumption Function in Geum River Basin of South Korea

Assessment of Streamflow Depletion Due to Groundwater Pumping from a Well

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