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  • Article
  • Open Access

12 February 2026

The determination of groundwater background levels is a prerequisite for assessing and analyzing groundwater characteristics. Shanghai is among the most economically developed regions in China and is located in the estuary of the Yangtze River, where...

  • Article
  • Open Access

11 February 2026

Groundwater is a critical strategic resource supporting agricultural production and ecological security in the transboundary river basins of Northeast China. However, intensified climate variability and rapid agricultural expansion over the past two...

  • Article
  • Open Access

Spatiotemporal Variability and Extreme Precipitation Characteristics in Arid Region of Ordos, China

  • Shengjie Cui,
  • Shuixia Zhao,
  • Chao Li,
  • Yingjie Wu,
  • Xiaomin Liu,
  • Ping Miao,
  • Shiming Bai,
  • Yajun Zhou and
  • Jinrong Li

11 February 2026

Studying the precipitation characteristics and extreme precipitation events in arid and semi-arid regions is of significant baseline value for optimizing water resource allocation and utilizing precipitation resources. Utilizing multi-scale ERA5 prec...

  • Article
  • Open Access
198 Views
24 Pages

Quasi-Global (50° S–50° N) of Soil Moisture and Precipitation Extremes

  • Aoqi Shi,
  • Jun Liu,
  • Taoyu Jin,
  • Zhuhe Li,
  • Wenfu Yang,
  • Wenwen Wang and
  • Wenmin Zhang

9 February 2026

Clarifying the interplay between extreme soil moisture (SM) and precipitation (P) is imperative to understand the impacts of extreme events on ecosystems in a changing climate. However, the detailed relationships, pathways, and quantitative character...

  • Article
  • Open Access
254 Views
35 Pages

Hydrological Model Calibration in Data-Scarce Mediterranean Catchments: A Comparative Assessment of Three Strategies

  • Afshin Jahanshahi,
  • Felice D. Pacia,
  • Pasquale Perrini,
  • Angelo Avino,
  • Awais Naeem Sarwar,
  • Ruodan Zhuang,
  • Umberto Terracciano,
  • Pasquale Coccaro,
  • Luciana Giuzio and
  • Salvatore Manfreda

9 February 2026

Hydrological calibration in data-scarce catchments is challenged by non-stationary regimes, fragmented data, and systematic measurement errors. Conventional calibration approaches often assume continuous records and rely on standard performance metri...

  • Article
  • Open Access
340 Views
33 Pages

6 February 2026

Rapid urbanization has led to increasing structural modification of river catchments through dam construction and concrete-lining of natural channels as flood management measures. These interventions can alter the natural hydrology. This necessitates...

  • Article
  • Open Access
389 Views
34 Pages

Seasonal Inflow Shifts and Increasing Hot–Dry Stress for Eagle Mountain Lake Reservoir, Texas: SWAT Modeling with Downscaled CMIP6 Daily Climate and Observed Operations

  • Gehendra Kharel,
  • Daniel A. Ayejoto,
  • Brendan L. Lavy,
  • Michele Birmingham,
  • Tapos K. Chakraborty,
  • Md Simoon Nice and
  • Portia Asare

6 February 2026

Climate change can alter both the amount and timing of inflows to water supply reservoirs while also increasing heat-driven demand and the likelihood of stressful warm-season conditions. Climate-driven changes in inflow to Eagle Mountain Lake Reservo...

  • Article
  • Open Access
161 Views
35 Pages

Reaction of Minimum Streamflow of Arid Kazakhstan Rivers to Climate Non-Stationarity

  • Marat Moldakhmetov,
  • Lyazzat Makhmudova,
  • Ainur Mussina,
  • Assel Abdullayeva,
  • Lyazzat Birimbayeva,
  • Marzhan Tursyngali,
  • Bakyt Imamova,
  • Makpal Dautalieva,
  • Sagi Buralkhiyev and
  • Harris Vangelis

5 February 2026

This article provides a comprehensive analysis of long-term changes in the minimum river flow of the southern rivers of Western Kazakhstan (Temir, Oiyil, Zhem) for the period 1940–2022, with an emphasis on summer minimum and winter low flow as...

  • Article
  • Open Access
186 Views
25 Pages

4 February 2026

Reduced soil moisture (SM) together with elevated vapor pressure deficit (VPD) suppresses gross primary productivity (GPP) and thus weakens the capacity of the terrestrial carbon pool. Against the backdrop of global climate change, soil and atmospher...

  • Article
  • Open Access
324 Views
24 Pages

High-Frequency Multi-Satellite Observations of Brahmaputra River Hydrology and Floodplain Dynamics

  • Faruque Abdullah,
  • Jamal Khan,
  • Nasreen Jahan,
  • A.K.M. Saiful Islam and
  • Sazzad Hossain

4 February 2026

Reliable observation of water resources is a major challenge for sustainable development, particularly in the river-centric deltaic countries like Bangladesh, where the data is generally scarce. Leveraging operational satellites, this study presents...

  • Article
  • Open Access
340 Views
38 Pages

3 February 2026

This study assesses groundwater quality and nitrate-related health risks in the Skhirat coastal aquifer (Morocco) using a multidisciplinary approach. A total of thirty groundwater wells were sampled and analyzed for physico-chemical properties, inclu...

  • Article
  • Open Access
361 Views
38 Pages

3 February 2026

Selenium contamination in arid agricultural basins remains a key ecological concern, yet the Wister Unit of the Imperial Wildlife Area has received comparatively little hydrochemical study. This investigation provides the most integrated assessment t...

  • Article
  • Open Access
230 Views
19 Pages

2 February 2026

Groundwater heavy metal contamination (GHMC) has drawn significant attention in China over recent decades due to industrialization. However, effective monitoring and early warning remain global challenges because of the limited understanding of heavy...

  • Article
  • Open Access
382 Views
29 Pages

Investigating the Influence of Geological Uncertainty on Urban Hydrogeological Modeling

  • Charalampos Ntigkakis,
  • Stephen Birkinshaw and
  • Ross Stirling

2 February 2026

Groundwater models form the basis for investigating subsurface processes that relate to groundwater flow. Urban cover, however, usually inhibits the collection of new subsurface or geological data. Therefore, models usually depend on existing, poor-q...

  • Article
  • Open Access
192 Views
18 Pages

Using High-Resolution Hydrodynamic Models to Assess the Environmental Status of Highly Modified Transitional Waters in Salt Marshes

  • Cira Buonocore,
  • Juan J. Gomiz-Pascual,
  • Ander López Puertas,
  • Óscar Álvarez Esteban,
  • Rafael Mañanes,
  • María L. Pérez Cayeiro,
  • Alfredo Izquierdo González,
  • Antonio Gómez Ferrer,
  • Noelia P. Sobrino González and
  • Miguel Bruno

2 February 2026

Effective management of transitional waters requires collaboration between administrative and scientific institutions, in line with the sustainable water management principles established by the Water Framework Directive (WFD, 2000/60/EC). The Cadiz...

  • Article
  • Open Access
190 Views
31 Pages

1 February 2026

Effective Water Resource Management (WRM) requires the integration of physical hydrological processes with institutional drought response plans. In Romania, the Olt River Basin represents one of the most highly regulated catchments, where water secur...

  • Article
  • Open Access
466 Views
24 Pages

Hybrid Ensemble Learning for TWSA Prediction in Water-Stressed Regions: A Case Study from Casablanca–Settat Region, Morocco

  • Youssef Laalaoui,
  • Naïma El Assaoui,
  • Oumaima Ouahine,
  • Thanh Thi Nguyen and
  • Ahmed M. Saqr

1 February 2026

A hybrid machine learning framework has been developed in this study to estimate Terrestrial Water Storage Anomalies (TWSA) in Morocco’s Casablanca–Settat region, which faces serious groundwater stress due to rapid urbanization, intensive...

  • Article
  • Open Access
255 Views
16 Pages

1 February 2026

Understanding the characteristics of precipitation datasets in a given region is crucial for hydrological studies. This study focuses on the British Columbia (BC) Province in Canada and evaluates the statistical characteristics of precipitation data...

  • Article
  • Open Access
174 Views
29 Pages

1 February 2026

This study investigates how a Long Short-Term Memory (LSTM) model internally represents baseflow contributions in snowmelt-driven, semi-arid mountain basins with heterogeneous geologic characteristics. Five basins in the Sangre de Cristo Mountains of...

  • Article
  • Open Access
251 Views
20 Pages

Copula-Based Bayesian Inference Approaches for Uncertainty Quantification for Hydrological Simulation

  • Feng Wang,
  • Ruixin Duan,
  • Jiannan Zhang,
  • Mengyu Zhai,
  • Yanfeng Li,
  • Yurui Fan and
  • Yulei Xie

29 January 2026

In this study, an advanced copula-based Bayesian inference framework is proposed to characterize probabilistic features in hydrological simulations. Specifically, a Copula–Metropolis–Hastings (CopMH) algorithm is developed through integra...

  • Article
  • Open Access
217 Views
26 Pages

28 January 2026

Terminal lakes in arid regions are highly vulnerable to climate variability and human water management, yet their long-term hydrological responses under multi-river regulation remain insufficiently quantified. Using Taitema Lake at the terminus of th...

  • Article
  • Open Access
190 Views
26 Pages

28 January 2026

Urbanization in mountainous regions alters hydrologic systems, yet the spatial patterning of residential (RA) and non-residential (NRA) areas in response to hydrologic constraints remains poorly quantified. In this study, we analyzed how such constra...

  • Article
  • Open Access
862 Views
20 Pages

Designing for the Past in a Nonstationary Climate: Evidence from Cyclone Ditwah’s Extreme Rainfall in Sri Lanka

  • Chamal Perera,
  • Nadee Peiris,
  • Luminda Gunawardhana,
  • Lalith Rajapakse,
  • Nimal Wijayaratna,
  • Binal Chatura Dissanayake and
  • Kasun De Silva

28 January 2026

The November 2025 extreme rainfall event associated with Tropical Cyclone Ditwah caused catastrophic flooding and landslides across Sri Lanka. This study presents a national-scale statistical and Intensity–Duration–Frequency (IDF)-based a...

  • Article
  • Open Access
559 Views
28 Pages

28 January 2026

The application of two-dimensional (2D) hydrologic and hydraulic modeling tools is increasing for overland flow simulation, as they represent spatial changes in depth, velocity, and flow conditions more accurately. Recently, the US Army Corps HEC-HMS...

  • Technical Note
  • Open Access
309 Views
23 Pages

SWAT-Based Assessment of the Water Regulation Index Under RCP 4.5 and RCP 8.5 Scenarios in the San Pedro River Basin

  • Miguel Angel Arteaga Madera,
  • Teobaldis Mercado Fernández,
  • Amir David Vergara Carvajal,
  • Yeraldin Serpa-Usta and
  • Alvaro Alberto López-Lambraño

27 January 2026

This study evaluated the water supply and regulation of the San Pedro River basin, located in the municipality of Puerto Libertador (Córdoba, Colombia), under climate change scenarios, using the SWAT (Soil and Water Assessment Tool) hydrologic...

  • Article
  • Open Access
190 Views
16 Pages

27 January 2026

The rapid expansion of tunnel construction in mountainous regions faces significant challenges due to the heterogeneity of surrounding rocks caused by faults, fractures, and karst features, which strongly affect groundwater seepage. Traditional homog...

  • Article
  • Open Access
273 Views
22 Pages

Development of an Agricultural Water Risk Indicator Framework Using National Water Model Streamflow Forecasts

  • Joseph E. Quansah,
  • Ruben D. Doria,
  • Eniola E. Olakanmi and
  • Souleymane Fall

24 January 2026

Agricultural production remains highly susceptible to water-related risks, such as drought and flooding. Although hydrologic forecasting systems, such as the National Water Model (NWM), have advanced considerably, their outputs are rarely used for re...

  • Article
  • Open Access
216 Views
17 Pages

22 January 2026

The West Liaohe River Basin, a core arid region in Northeast China, faces a significant evaporation–precipitation imbalance and exhibits fragmented land systems, epitomized by the Horqin Sandy Land. Integrating three decades of land use/land co...

  • Article
  • Open Access
194 Views
27 Pages

Spatio-Temporal Evaluation of Hydrological Pattern Changes Under Climatic and Anthropogenic Stress in an Endorheic Basin: Coupled SWAT-MODFLOW Analysis of the Lake Cuitzeo Basin

  • Alejandra Correa-González,
  • Joel Hernández-Bedolla,
  • Mario Alberto Hernández-Hernández,
  • Sonia Tatiana Sánchez-Quispe,
  • Marco Antonio Martínez-Cinco and
  • Constantino Domínguez Sánchez

21 January 2026

In recent years, human activities have impacted surface water and groundwater and their interactions with natural water bodies. Lake Cuitzeo is one of Mexico’s most important water bodies but has significantly reduced its flooded area in recent...

  • Article
  • Open Access
229 Views
21 Pages

Laboratory-Scale Evaluation of an Electrochemical Barrier System for Targeted Removal of Vinyl Chloride and Trichloroethylene from Groundwater

  • Nataša Duduković,
  • Lea Plavšin,
  • Kristiana Zrnić Tenodi,
  • Malcolm Watson,
  • Marijana Kragulj Isakovski,
  • Božo Dalmacija and
  • Jasmina Agbaba

20 January 2026

Chlorinated solvents such as vinyl chloride (VC) and trichloroethylene (TCE) represent a persistent threat to groundwater-derived drinking-water supplies, including riverbank filtration well fields in alluvial aquifers. This work presents a laborator...

  • Article
  • Open Access
246 Views
20 Pages

Sustainable Hydrokinetic Energy System for Smart Home Applications

  • Julio Jose Caparros Mancera,
  • Antonio García-Chica,
  • Rosa Maria Chica,
  • Cesar Antonio Rodriguez Gonzalez and
  • Angel Mariano Rodriguez Perez

20 January 2026

The exploitation of hydrokinetic resources represents a sustainable and efficient alternative for renewable energy generation. This study presents the design and real-world implementation of a compact hydrokinetic system capable of converting rainwat...

  • Article
  • Open Access
222 Views
22 Pages

19 January 2026

Rainfall, as the main driving force of natural disasters such as floods and droughts, has strong non-linear and abrupt characteristics, which makes it difficult to predict. As extreme weather events occur frequently in the Yellow River Basin, it is e...

  • Article
  • Open Access
197 Views
20 Pages

A Rapid Prediction Model of Rainstorm Flood Targeting Power Grid Facilities

  • Shuai Wang,
  • Lei Shi,
  • Xiaoli Hao,
  • Xiaohua Ren,
  • Qing Liu,
  • Hongping Zhang and
  • Mei Xu

19 January 2026

Rainstorm floods constitute one of the major natural hazards threatening the safe and stable operation of power grid facilities. Constructing a rapid and accurate prediction model is of great significance in order to enhance the disaster prevention c...

  • Article
  • Open Access
278 Views
20 Pages

Groundwater Pollution Transport in Plain-Type Landfills: Numerical Simulation of Coupled Impacts of Precipitation and Pumping

  • Tengchao Li,
  • Shengyan Zhang,
  • Xiaoming Mao,
  • Yuqin He,
  • Ninghao Wang,
  • Daoyuan Zheng,
  • Henghua Gong and
  • Tianye Wang

17 January 2026

Landfills serve as a primary disposal method for municipal solid waste in China, with over 20,000 operational sites nationwide; however, long-term operations risk leachate leakage and groundwater contamination. Amid intensifying climate change and hu...

  • Article
  • Open Access
324 Views
25 Pages

Coupling Modeling Approaches for the Assessment of Runoff Quality in an Urbanizing Catchment

  • Lihoun Teang,
  • Kim N. Irvine,
  • Lloyd H. C. Chua and
  • Muhammad Usman

16 January 2026

The impacts of land use on stormwater runoff quality and Best Management Practices to mitigate these impacts have been investigated since the 1970s, yet challenges remain in providing a modeling approach that concomitantly considers contributions fro...

  • Feature Paper
  • Article
  • Open Access
407 Views
26 Pages

Anticipated Compound Flooding in Miami-Dade Under Extreme Hydrometeorological Events

  • Alan E. Gumbs,
  • Alemayehu Dula Shanko,
  • Abiodun Tosin-Orimolade and
  • Assefa M. Melesse

16 January 2026

Climate change and the resulting projected rise in sea level put densely populated urban communities at risk of river flooding, storm surges, and subsurface flooding. Miami finds itself in an increasingly vulnerable position, as compound inundation s...

  • Article
  • Open Access
289 Views
13 Pages

16 January 2026

Rainfall erosivity is a key driver of soil erosion and sediment delivery in the Lancang River Basin, but its spatiotemporal variations and relationship with sediment delivery changes remain unquantified. Based on the daily precipitation data from met...

  • Article
  • Open Access
295 Views
20 Pages

Subsurface Temperature Distributions Constrain Groundwater Flow in Salar Marginal Environments

  • David F. Boutt,
  • Julianna C. Huba,
  • Lee Ann Munk and
  • Kristina L. Butler

15 January 2026

Interactions between surface water and groundwater in arid regions regulate their response to climate and human impacts. In the salar systems of the Altiplano-Puna plateau (Bolivia, Chile, Argentina), understanding how surface waters connect to groun...

  • Article
  • Open Access
362 Views
34 Pages

14 January 2026

Flooding remains one of the most disruptive and costly natural hazards worldwide. Conventional approaches for estimating flood damage cost rely on empirical loss curves or historical insurance data, which often lack spatial resolution and predictive...

  • Article
  • Open Access
227 Views
28 Pages

Modeling Reliability Quantification of Water-Level Thresholds for Flood Early Warning

  • Shiang-Jen Wu,
  • Hao-Wen Yang,
  • Sheng-Hsueh Yang and
  • Keh-Chia Yeh

14 January 2026

This study proposes a framework, the RA_WLTE_River model, for quantifying the reliability of flood-altering water-level thresholds, considering rainfall and runoff-related uncertainties. The Keelung River in northern Taiwan is selected as the study a...

  • Article
  • Open Access
261 Views
18 Pages

12 January 2026

River ice is a common natural phenomenon in cold regions during winter, and it is also one of the key factors that must be considered in the development and utilization of water resources in these areas. In this paper, based on a two-dimensional hydr...

  • Article
  • Open Access
367 Views
21 Pages

The Floodport App for Interactive Coastal Flood Risk Training

  • Angelos Alamanos,
  • Phoebe Koundouri,
  • Nikolaos Nagkoulis and
  • Olympia Nisiforou

11 January 2026

Coastal flooding can result from multiple interacting drivers and can be a complex, challenging topic for learners to grasp. Interactive learning with apps offers new opportunities for improving comprehension and engagement. We present the Floodport...

  • Article
  • Open Access
662 Views
24 Pages

Surface Runoff Responses to Forest Thinning in Semi-Arid Oak–Pine Micro-Catchments of Northern Mexico

  • Gabriel Sosa-Pérez,
  • Argelia E. Rascón-Ramos,
  • David E. Hermosillo-Rojas,
  • Alfredo Pinedo Alvarez,
  • Eduardo Santellano-Estrada,
  • Raúl Corrales-Lerma,
  • Sandra Rodríguez-Piñeros and
  • Martín Martínez-Salvador

Hydrological behavior plays a critical role in seasonally dry forest ecosystems, as it underpins water availability for multiple productive activities, including forestry, agriculture, grazing, and urban supply. This study evaluated the hydrological...

  • Article
  • Open Access
481 Views
27 Pages

Floods are among the most catastrophic natural disasters, causing severe impact on human lives and ecosystems. The proposed methodology integrates Geographic Information Systems, 2D hydraulic modeling, and deep learning techniques to develop a comput...

  • Article
  • Open Access
626 Views
12 Pages

As exposed bedrocks commonly interface with the soil directly, lacking a transition layer, cracks at rock–soil interface cracks (RSI-Cracks), are well-developed, particularly following wet–dry alternation in karst critical zones. However,...

  • Article
  • Open Access
759 Views
28 Pages

Climate change and irregular precipitation patterns have increasingly threatened groundwater sustainability in semi-arid regions like the Eastern Mediterranean. Specifically, in coastal Syria, the lack of quantitative understanding regarding aquifer...

  • Feature Paper
  • Article
  • Open Access
915 Views
21 Pages

Effects of Groundwater Flux on Denitrification in a Steep Coastal Agricultural Island in Western Japan Using Push–Pull Tests

  • Kelly Tiku Tarh,
  • Shin-ichi Onodera,
  • Mitsuyo Saito,
  • Sharon Bih Kimbi and
  • Miho Awamura

This study investigated the influence of groundwater flux and temperature on denitrification in a steep coastal agricultural Island in western Japan. Push–pull tests (PPTs) were conducted at depths of 3 m, 15 m, and 30 m, during winter, spring,...

  • Article
  • Open Access
330 Views
30 Pages

Modeling and Assessment of Salinity Reduction Strategies in the Jarahi River, Iran

  • Javad Ahadiyan,
  • Narges Yarahamdi,
  • Asghar Akbari,
  • Seyed Mohsen Sajjadi,
  • Hossein Azizi Nadian and
  • Farhad Bahmanpouri

This study investigates the spatial and temporal variations in salinity in the Jarahi River and its traditional channels using field measurements and numerical simulations. The primary objective is to assess the effectiveness of different management...

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Hydrology - ISSN 2306-5338