1. Spatio-temporal variations of groundwater quality index using geostatistical methods and GIS

   • Frsat Abdullah Ababakr
   • Kaywan Othman Ahmed
   • Hüseyin Gökçekuş

   Original Article Open access 25 September 2023 Article: 206

   

2. Space–time heterogeneity of drought characteristics in Sabah and Sarawak, East Malaysia: implications for developing effective drought monitoring and mitigation strategies

   • Yuk Feng Huang
   • Jing Lin Ng
   • Ahmed Elshafie

   Original Article Open access 21 September 2023 Article: 205

   

3. Sub-surface configuration in the northern part of Lembang groundwater basin recharge area

   • Gumilar Utamas Nugraha
   • Andi Agus Nur
   • Aisyah Dewi Rulyadi

   Original Article Open access 21 September 2023 Article: 204

   

4. Numerical modeling of hydraulic jumps at negative steps to improve energy dissipation in stilling basins

   • Juan Francisco Macián-Pérez
   • Rafael García-Bartual
   • Francisco José Vallés-Morán

   Original Article Open access 19 September 2023 Article: 203

   

5. Removal of metronidazole antibiotic by modified red mud from aqueous solutions: process modeling, kinetic, and isotherm studies

   • Fatemeh Lotfi Golsefidi
   • Mohaddeseh Zahmatkesh Anbarani
   • Ziaeddin Bonyadi

   Original Article Open access 15 September 2023 Article: 202

   

6. Using hydrogeochemical facies and signatures for groundwater characterization and evolution assessment in aquifers with contrasting climate and geology in Tanzania

   • Kassim Ramadhani Mussa
   • Ibrahimu Chikira Mjemah

   Original Article Open access 15 September 2023 Article: 201

   

7. Evaluation of heavy metal contamination using cokriging geostatistical method (case study of Abteymour oilfield in southern Iran)

   • Danial Khodoli Zangeneh
   • Hakimeh Amanipoor
   • Sedigheh Battaleb-Looie

   Original Article Open access 14 September 2023 Article: 200

   

8. Optimal allocation model and method for parallel ‘reservoir and pumping station’ irrigation system under insufficient irrigation conditions

   • Cong Wei
   • Hengjun Ge
   • Shaoqing Zhang

   Original Article Open access 14 September 2023 Article: 199

   

9. Evaluation and optimization of hydrometric locations using entropy theory and Bat algorithm (case study: Karkheh Basin, Iran)

   • Saeid Eslamian
   • Khashayar Esmaili Fallah
   • Yaser Sabzevari

   Original Article Open access 12 September 2023 Article: 198

   

10. Hydrochemistry and water quality of shallow groundwater in the Tikrit area of Salah Al Din Province, Iraq

    • Alhassan H. Ismail
    • Muntasir A. Shareef
    • Farid M. Alatar

    Original Article Open access 11 September 2023 Article: 197

    

11. Evaluation of Koga irrigation water in Mecha district, Amhara Region, as an example of irrigation water quality in Northwestern Ethiopia

    • Mekuanint Lewoyehu
    • Dagnachew Fentahun
    • Solomon Addisu

    Original Article Open access 09 September 2023 Article: 196

    

12. Divalent transition metal complexes of nitrogen, oxygen and sulfur containing ligand: design, structural, spectral, pH-metric, theoretical molecular modeling, analytical and mechanism studies

    • Magda A. Akl
    • Mohammed M. H. Al-Awadhi
    • Abdelrahman S. El-Zeny

    Original Article Open access 09 September 2023 Article: 195

    

13. Fabrication of Pea pods biochar-NH₂ (PBN) for the adsorption of toxic Cr⁶⁺ ion from aqueous solution

    • Mohamed A. El-Nemr
    • Murat Yılmaz
    • Ahmed El Nemr

    Original Article Open access 08 September 2023 Article: 194

    

14. Azadirachta indica-assisted green synthesis of magnesium oxide nanoparticles for degradation of Reactive Red 195 dye: a sustainable environmental remedial approach

    • Shumaila Kiran
    • Hasan B. Albargi
    • M. M. Abdullah

    Original Article Open access 08 September 2023 Article: 193

    

15. Multi-ahead electrical conductivity forecasting of surface water based on machine learning algorithms

    • Deepak Kumar
    • Vijay Kumar Singh
    • Mohamed A. Mattar

    Original Article Open access 08 September 2023 Article: 192

    

16. Investigating spatial and temporal trend of groundwater quality in relation to water balance in 2007–2017: a case study of Chaharmahal va Bakhtiari Province, Iran

    • Rasool Zamani-Ahmadmahmoodi
    • Samira Bayati
    • Atefeh Chamani

    Original Article Open access 08 September 2023 Article: 191

    

17. Synthetic mixture of sand and shale: how conductor (shale) and saturation influence electrical characteristics

    • Mohamed M. Gomaa
    • Ahmed M. Elshenawy
    • Adel Kotb

    Original Article Open access 08 September 2023 Article: 190

    

18. Upcycling of easy separated Casuarina equisetifolia fruit waste as a biosorbent: tailoring the surface modification to enhance selective removal of cationic dye or simultaneously removal of cationic and anionic dyes

    • Emad K. Radwan
    • Rehab A. Omar
    • A. Marey

    Original Article Open access 04 September 2023 Article: 189