Investigating the response of groundwater and streamflow to rainfall in a tropical catchment using non-parametric methods DOI
G. S. Deepa Varghese, Mohandas Chadaga,

U A Lathashri

et al.

Quarterly Journal of Engineering Geology and Hydrogeology, Journal Year: 2024, Volume and Issue: 57(4)

Published: Aug. 12, 2024

The present study investigates the monthly and seasonal patterns of groundwater levels streamflow in response to rainfall a humid tropical catchment central Kerala, India. trends were investigated at temporal scale using data from eight groundwater-level observation wells, four stream-gauging stations records three subcatchments, viz. Cheripad, Pala Kidangoor. exercise trend detection was carried out two widely adopted non-parametric tests, Mann–Kendall (MK) test, Spearman's Rho (SR) test relatively new visual graphical approach, innovative analysis (ITA). results revealed predominantly rising (monthly scale) within catchment, across all hydrological components examined. Notably, ITA identified specific changes direction time series (positive negative or vice versa), which not observable MK SR tests. Data published Groundwater Book Kerala for 2021–22 corroborated this increasing trend, showing, on average, well water throughout watershed pre-monsoon post-monsoon seasons. This further confirmed by pairing observations monitoring station KTM-OW-11 with nearby gauging Erattupettah.

Language: Английский

Risk assessment of potentially toxic elements and mapping of groundwater pollution indices using soft computer models in an agricultural area, Northeast Algeria DOI
Azzeddine Reghais, Abdelmalek Drouiche, Faouzi Zahi

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: unknown, P. 137991 - 137991

Published: March 1, 2025

Language: Английский

Citations

1
Meteorological Drought Analysis and Regional Frequency Analysis in the Kızılırmak Basin: Creating a Framework for Sustainable Water Resources Management DOI Open Access
Gaye Aktürk, Hatice Çıtakoğlu, Vahdettin Demir

et al.

Water, Journal Year: 2024, Volume and Issue: 16(15), P. 2124 - 2124

Published: July 26, 2024

Drought research is needed to understand the complex nature of drought phenomena and develop effective management mitigation strategies accordingly. This study presents a comprehensive regional frequency analysis (RFA) 12-month meteorological droughts in Kızılırmak Basin Turkey using L-moments approach. For this purpose, monthly precipitation data from 1960 2020 obtained 22 stations basin are used. In analysis, Standard Precipitation Index (SPI), Z-Score (ZSI), China-Z (CZI) Modified (MCZI), which widely used precipitation-based indices literature, employed. Here, main objectives (i) determine homogeneous regions based on drought, (ii) identify best-fit distributions, (iii) estimate maximum intensities for return periods ranging 5 1000 years, (iv) obtain maps selected periods. The homogeneity test results show that consists single region according considered here. distributions identified L-moment ratio diagrams ZDIST goodness-of-fit tests. According results, Pearson-Type 3 (PE3) SPI ZSI, generalized extreme value (GEV) CZI, logistic distribution (GLO) MCZI. here can be utilized as useful tool estimating probability at any location across basin, even without enough hydrological research.

Language: Английский

Citations

8
Multi-criteria decision-making techniques for groundwater potentiality mapping in arid regions: A case study of Wadi Yiba, Kingdom of Saudi Arabia DOI
Nuaman Ejaz,

Aftab Haider Khan,

Muhammad Waqar Saleem

et al.

Groundwater for Sustainable Development, Journal Year: 2024, Volume and Issue: 26, P. 101223 - 101223

Published: June 4, 2024

Language: Английский

Citations

6
Hydrogeologic framework of the Mountain Home area, southern Idaho DOI
Lauren M. Zinsser, Scott D. Ducar

Scientific investigations report, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

Citations

0
Evaluation of geostatistical interpolation methods on spatial representation of groundwater depth and nitrate concentration of Elalla-Aynalem wellfield, Northern Ethiopia DOI Creative Commons
Gebremedhin Berhe Zenebe,

Gebrerufael Hailu,

Abbadi Girmay

et al.

Discover Water, Journal Year: 2025, Volume and Issue: 5(1)

Published: Feb. 12, 2025

Language: Английский

Citations

0
Exploración de las Características Hidroquímica del Agua Subterránea en la Zona Baja de la Cuenca Río Carrizal DOI
Veris Antonio Saldarriaga Lucas

Revista Politécnica, Journal Year: 2025, Volume and Issue: 55(2), P. 1 - 16

Published: May 16, 2025

La falta del recurso hídrico en cantidad y calidad ha generado diferentes intereses las instituciones, investigadores científicos estudiar los cuerpos de agua para el desarrollo humano. El objetivo la investigación fue explorar características hidroquímicas subterránea cuenca baja valle río Carrizal mediante técnicas multivariantes geoespaciales que permitan establecer este esta zona. trabajo consistió tomar muestras catorce pozos observación, cada uno con distintos usos suelo. Los parámetros se evaluaron fueron: pH, conductividad eléctrica, dureza, sólidos totales disueltos, relación absorción sodio, además cationes aniones. De manera general, hidroquímicos muestran variable dureza encuentra un nivel superior al permisible su uso, mientras que: conductividad, pH mostraron valores bajos sin problemas uso. catión calcio (Ca2+) representa 67 % ion Bicarbonato 75 siendo concentraciones mayoritarias aniones, respectivamente. Profundizando más análisis pudo evidenciar existente entre parámetro totales, calcio, bicarbonato, cloruro sulfato. determinada por mineralización roca madre, esto traduce concentración alta correlación aniones Las empleadas exploración permitieron conocer comportamientos Carrizal.

Citations

0
Optimizing Interpolation Methods and Point Distances for Accurate Earthquake Hazard Mapping DOI Creative Commons

Sayyed Hadi Alavi,

Alireza Bahrami, ‪Mohammadreza Mashayekhi

et al.

Buildings, Journal Year: 2024, Volume and Issue: 14(6), P. 1823 - 1823

Published: June 15, 2024

Earthquake hazard mapping assesses and visualizes seismic hazards in a region using data from specific points. Conducting analysis for each point is essential, while continuous assessment all points impractical. The practical approach involves identifying at utilizing interpolation the rest. This method considers grid spacing chooses right technique estimating other article examines different distances methods through case study. To gauge accuracy, it tests 15 employs two methods, inverse distance weighted ordinary kriging. Point are chosen as percentage of longitude latitude, ranging 0.02 to 0.3. A baseline set, compared with it. Five statistical indicators assess methods. Ordinary kriging shows greater accuracy. With error rates map similarities mind, 0.14 seems optimal, balancing computational time accuracy needs. Based on research findings, this offers cost-effective creating maps. It enables informed risk assessments structures spanning various geographic areas, like linear infrastructures.

Language: Английский

Citations

1
A study of riverbank filtration effectiveness in the Kępa Bogumiłowicka well field, southern Poland DOI Creative Commons
Krzysztof Janik, Kinga Ślósarczyk, Sławomir Sitek

et al.

Journal of Hydrology Regional Studies, Journal Year: 2024, Volume and Issue: 53, P. 101834 - 101834

Published: May 25, 2024

Southern Poland, Dunajec River catchment The study evaluated an eleven-year observation period of physicochemical parameters within a riverbank filtration (RBF) site located by the River. A total nine (pH, electrical conductivity, sulphate, chloride, nitrate, manganese, water hardness, colour, turbidity) in both surface and groundwater underwent statistical scrutiny. This analysis encompassed Spearman's correlation, linear mixed-effects models hypothesis testing. revealed that constitutes major factor forming exploited composition. Statistically significant differences between two rows wells were found, implying more substantial RBF impact on row closer to Dunajec. However, river's influence further was also highlighted. process area considered efficient since it maintained stable composition provided sufficient for exploitation over years. Comprehending interactions flow system is crucial well field sustainability, enabling supply optimisation precise assessment risks regarding contamination.

Language: Английский

Citations

0
Investigating the response of groundwater and streamflow to rainfall in a tropical catchment using non-parametric methods DOI
G. S. Deepa Varghese, Mohandas Chadaga,

U A Lathashri

et al.

Quarterly Journal of Engineering Geology and Hydrogeology, Journal Year: 2024, Volume and Issue: 57(4)

Published: Aug. 12, 2024

The present study investigates the monthly and seasonal patterns of groundwater levels streamflow in response to rainfall a humid tropical catchment central Kerala, India. trends were investigated at temporal scale using data from eight groundwater-level observation wells, four stream-gauging stations records three subcatchments, viz. Cheripad, Pala Kidangoor. exercise trend detection was carried out two widely adopted non-parametric tests, Mann–Kendall (MK) test, Spearman's Rho (SR) test relatively new visual graphical approach, innovative analysis (ITA). results revealed predominantly rising (monthly scale) within catchment, across all hydrological components examined. Notably, ITA identified specific changes direction time series (positive negative or vice versa), which not observable MK SR tests. Data published Groundwater Book Kerala for 2021–22 corroborated this increasing trend, showing, on average, well water throughout watershed pre-monsoon post-monsoon seasons. This further confirmed by pairing observations monitoring station KTM-OW-11 with nearby gauging Erattupettah.

Language: Английский

Citations

0