Characterizing the Impact of River Barrage Construction on Stream-Aquifer Interactions, Korea

Oh, Yun Yeong; Hamm, Se‐Yeong; Ha, Kyoochul; Yoon, Heesung; Chung, Il-Moon

doi:10.3390/w8040137

Cited by 8 publications

(6 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The geology of the study area (Figure 3) is composed of Cretaceous sedimentary rocks of the Hayang Group and Cretaceous volcanic rocks (mainly Jusan andesite) of the Yucheon Group belonging to the Gyeongsang Supergroup, with the intrusion of Cretaceous Bulguksa igneous rocks, including diorite, biotite granite, granodiorite, granite porphyry, and dikes [34][35][36]. Quaternary alluvial layers chiefly occurring along the river area are composed of clay, sand, gravel and weathered layers, in descending order, with an average thickness of 7.9 m, 9.1 m, 5.6 m and 5.1 m, respectively [20]. Cretaceous sedimentary rocks mainly consist of purple shale, grey shale, greenish-grey sandstone/sandy shale, and purple sandy shale.…”

Section: Geological and Hydrological Settingsmentioning

confidence: 99%

See 1 more Smart Citation

Determining Groundwater Drought Relative to the Opening of a River Barrage in Korea

Yun

Jeong

Jeon³

et al. 2023

Water

Self Cite

View full text Add to dashboard Cite

Groundwater droughts are one of the natural disasters that raise serious water issues for humans, and are increasing in frequency due to global climate change. In order to identify groundwater droughts, we recorded groundwater level fluctuations upstream at Changnyeong-Haman River barrage from May 2012 to October 2020, based on the groundwater level characteristics and Nakdong River stages. Next, we grouped groundwater levels by K-means clustering, converted groundwater levels to kernel density estimation (KDE), and calculated a standardized groundwater level index (SGLI). Finally, we judged groundwater drought by using the SGLI values corresponding to the opening and closing of the barrage. In the study area, the SGLI criteria for discriminating groundwater drought were −0.674 (caution), −1.282 (severe), and −1.645 (very severe), respectively, corresponding to the 25th, 10th, and 5th percentiles. Based on the SGLI values, groundwater levels on the monitoring wells mostly lie below the 25th percentile during the five opening periods of the barrage. According to cross-correlation analysis, the groundwater level sensitively reacted with the river stage, which influenced groundwater drought. As a result, the SGLI along with the river stages was verified as an efficient tool for evaluating groundwater drought as well as for appropriately operating the barrage.

show abstract

Section: Geological and Hydrological Settingsmentioning

confidence: 99%

“…Numerous researchers have studied the relationship between groundwater and surface water [17][18][19][20][21][22][23][24][25]. Oh et al [21] examined the effects of the construction of Changnyeong-Haman River barrage in Korea on the interaction between rivers and aquifers.…”

Section: Introductionmentioning

confidence: 99%

Determining Groundwater Drought Relative to the Opening of a River Barrage in Korea

Yun

Jeong

Jeon³

et al. 2023

Water

Self Cite

View full text Add to dashboard Cite

show abstract

“…The results show that the logarithmic mean values of estimated river resistance obtained from all four observation wells are similar and that they are close to the lumped value of R = 2491.3 m and of a similar order of magnitude as values in the literature. For example, Ha et al (2007) found that the river resistance in the Mangyeong River of Korea could be as high as ~1,700 m. Oh et al (2016) found that the river resistance in the Nakdong River of Korea was ~5,000 m.…”

Section: 1029/2018wr024639mentioning

confidence: 99%

Spectral Analysis of River Resistance and Aquifer Diffusivity in a River‐Confined Aquifer System

Wang

Wörman

2019

Water Resources Research

View full text Add to dashboard Cite

Hydraulic connections between a river and an adjacent aquifer are controlled by the river resistance and aquifer diffusivity. In this paper, we derive a spectral solution linking the power spectrum of river stage fluctuations to that of the hydraulic head of a confined aquifer by means of a physical scaling factor. The physical scaling factor represents an algebraic expression of the river resistance and aquifer diffusivity and is included in an exact spectral solution derived herein. Statistical measures of the aquifer diffusivity and river resistance are provided by fitting the solution versus observed groundwater hydraulic head obtained at several distances and/or frequencies. At a study site in the middle reach of the Yangtze River and downstream of the Three Gorges Dam in China, we find systematic damping of the hydraulic head variations with distance from the river, which follows a fractal pattern driven by the river stage. In general, the estimated parameters are consistent with results reported in the literature, which supports the validity of the proposed spectral approach, although the paper discusses advantages and limitations due to application conditions.

show abstract

“…Groundwater levels rose in most areas near the rivers because river levels increased due to the management level of the weirs [1]. Consequently, weir construction helped to meet water demands and increased flood protection [2][3][4]. However, concerns about the impact of the restricted rivers on the riparian ecosystem remained [5,6]; therefore, nine weirs have operated periodically for natural ecosystem recovery, from 2017.…”

Section: Introductionmentioning

confidence: 99%

Effects of Baekje Weir Operation on the Stream–Aquifer Interaction in the Geum River Basin, South Korea

Lee

Koo

Cho

et al. 2020

Water

View full text Add to dashboard Cite

Hydraulic structures have a significant impact on riverine environment, leading to changes in stream–aquifer interactions. In South Korea, 16 weirs were constructed in four major rivers, in 2012, to secure sufficient water resources, and some weirs operated periodically for natural ecosystem recovery from 2017. The changed groundwater flow system due to weir operation affected the groundwater level and quality, which also affected groundwater use. In this study, we analyzed the changes in the groundwater flow system near the Geum River during the Baekje weir operation using Visual MODFLOW Classic. Groundwater data from 34 observational wells were evaluated to analyze the impact of weir operation on stream–aquifer interactions. Accordingly, the groundwater discharge rates increased from 0.23 to 0.45 cm/day following the decrease in river levels owing to weir opening, while the hydrological condition changed from gaining to losing streams following weir closure. The variation in groundwater flow affected the groundwater quality during weir operation, changing the groundwater temperature and electrical conductivity (EC). Our results suggest that stream–aquifer interactions are significantly affected by weir operation, consequently, these repeated phenomena could influence the groundwater quality and groundwater use.

show abstract

Characterizing the Impact of River Barrage Construction on Stream-Aquifer Interactions, Korea

Cited by 8 publications

References 37 publications

Determining Groundwater Drought Relative to the Opening of a River Barrage in Korea

Determining Groundwater Drought Relative to the Opening of a River Barrage in Korea

Spectral Analysis of River Resistance and Aquifer Diffusivity in a River‐Confined Aquifer System

Effects of Baekje Weir Operation on the Stream–Aquifer Interaction in the Geum River Basin, South Korea

Contact Info

Product

Resources

About