How far can reservoir operation displace a river’s calendar? We address the question with 92 years of monthly discharge on the Naryn River, the transboundary artery of the Syr Darya basin, together with an unregulated headwater gauge, two mount...
River basins constitute a suitable natural territorial unit for the integrated management of natural resources. The El Fuerte River basin (EFRB) in northwestern Mexico is located on the western slope of the Sierra Madre Occidental. Its importance lie...
This study investigates changes in local groundwater carrying status and regional differences under the background of reductions in total groundwater abstraction, using Jiuquan, Jiayuguan, Zhangye, Jinchang, and Wuwei in the Hexi Corridor as study ar...
Climate change and demographic dynamics may jointly alter future water availability and demand in high-Andean watersheds, yet their combined spatial effects remain insufficiently quantified in the Lake Titicaca Basin. This study integrated the Soil a...
This study investigated seasonal precipitation variability in the economically and agriculturally important Fez-Meknes region and its relationship with major atmospheric circulation patterns, namely the North Atlantic Oscillation (NAO), Western Medit...
Phosphorus (P) contamination in surface water is a major global concern affecting most suburban river catchments worldwide due to the discharge of industrial effluents and urban sewage, a consequence of rapid urbanization and industrialization. The o...
Effective water management requires accurate forecasting of dam inflows, rainfall, and actual electricity demand. In this paper, we propose a framework for intelligent control of Haditha Dam gates using the improved Harris Hawks Multi-Objective algor...
The Ankang catchment, the primary water-producing area in the upper reaches of the Danjiangkou Reservoir catchment, experiences immense pressure on its water environmental carrying capacity. However, existing studies remain unable to differentiate be...
Increasing reliance on groundwater, declining water tables and saltwater intrusion have intensified water stress along the coastal regions. Managed aquifer recharge (MAR) has served as an effective solution for groundwater management and for enhancin...
Reference evapotranspiration (ET0) is a standardized climatic index of atmospheric evaporative demand defined and calculated within the FAO-56 Penman–Monteith (PM) framework. When the required quality-controlled meteorological inputs are available, t...
Surface water availability is highly variable across the Lower Omo Subbasin of Ethiopia, affecting the livelihoods of pastoralist communities. This challenge is expected to intensify under climate change. As a result, groundwater serves as a critical...
Groundwater vulnerability maps are widely used tools for aquifer protection. This study aims to assess the robustness and uncertainty surrounding parameter weighting in index-based overlay models, as well as the reliability of metrics used for their...
Groundwater offers significant opportunities for expanding irrigation and improving agricultural productivity in water-scarce regions. This study assessed groundwater suitability and groundwater-supported irrigation potential in the Awash River Basin...
Agricultural drainage discharges into coastal waters whose nutrient concentrations also respond to ocean circulation and internal biogeochemical cycling. We analysed 48 monthly Copernicus Marine surface records per sector from January 2022 to Decembe...
Rill erosion is an important source of sediment on steep disturbed hillslopes, although the interaction among runoff accumulation, rill micromorphological evolution, and sediment response remains insufficiently understood. This study investigated ril...
Karst springs are characterized by heterogeneous hydrological responses and complex dynamics of suspended material transport during rainfall events. This study aimed to improve understanding of the processes that determine the hydrological response o...
Groundwater drought is characterized by delayed responses, long duration, and slow recovery, and its evolution is influenced by both local hydroclimatic processes and large-scale ocean–atmosphere variability. To investigate the spatiotemporal e...
This study was conducted in the Upper Olifants River Catchment, located in the Mpumalanga Province of South Africa. The area faces groundwater pollution associated with the current land use and land cover. The primary aim of the present study is to a...
Machine learning (ML) models utilizing high-frequency Internet of Things (IoT) monitoring data offer significant potential for stream-level nowcasting. The assessment of model performance is often a challenging task because conventional approaches ar...
Flood early warning systems (FEWSs) in data-scarce and rapidly responding catchments require monitoring networks that provide sufficient forecasting information with minimal operational cost. This study evaluates the applicability of a data-driven se...
Intensified climate change and anthropogenic activities have increased the complexity and nonlinearity of watershed runoff, challenging accurate runoff simulation and input-factor importance analysis. Physical hydrological models are constrained by p...
Physical clogging during managed aquifer recharge can reduce aquifer conductivity and alter leakage across intervening aquitards. This study presents a quasi-three-dimensional model coupling horizontal groundwater flow, suspended-particle transport,...
The long-term environmental legacy of historical gold mining continues to pose significant concerns about water quality and human health. This study evaluates and compares the impacts of former gold mines on groundwater (GW) and surface water (SW) qu...
Uncertainty in soil hydraulic properties is a major source of hydrological and flood-modeling error, especially in data-scarce, heterogeneous arid soils. In ephemeral stream watersheds, infiltration strongly controls runoff generation and flash-flood...
Long-term structural connectivity in highly regulated plain river networks remains insufficiently understood, particularly under concurrent climatic variability and land-use change. This study examined surface-water structural connectivity in Jiashan...
Historical groundwater databases may contain systematic errors involving ground elevations, spatial coordinates, or hydraulic head measurements, which can affect hydrogeological interpretation and downstream analyses. Conventional outlier detection m...
The Japanese Garden of La Paz, Bolivia, is a sociocultural space with high biodiversity, with its lagoon receiving treated effluent from the “Las Cholas” Wastewater Treatment Unit. Preliminary monitoring revealed elevated organic matter c...
Flood seasonality strongly influences flood risk and its management worldwide. Anthropogenic climate change and land-surface human activities are widely recognized as the two major drivers of its evolution, yet their relative contributions remain poo...
This study takes the pumped hydro storage (PHS) in arid areas—where the irrigation reservoir in the piedmont plain serves as the lower reservoir—as the research object. It establishes a model framework for the evolution of heat flux in th...
Flood susceptibility mapping in large transboundary basins is often constrained by sparse observations, heterogeneous environmental conditions, and validation strategies that overstate model skill when spatial dependence is ignored. This study develo...
Accurate multi-step streamflow forecasting requires models to preserve antecedent streamflow memory and account for delayed dependence between gauges. This study proposes a prior-informed directed-lag graph neural residual model, termed PI-DLGNR. The...
The western desert of Iraq is one of the most water-stressed environments in the Middle East. Characterized by unpredictable rainfall and long periods of evaporation. Several small earth dams have been constructed in this region, which are the only a...
Lumped hydrological modeling approaches based on the Rational Method (RM) continue to be used in engineering practice despite the advent of various sophisticated hydrological modeling tools in the past decades. While the simplicity, low data requirem...
This study proposes a probabilistic methodology to estimate drought hydrographs from observed discharge data recorded at a river gauging station under natural hydrological conditions and under reservoir operation for hydropower generation, with data...
Water flow through saturated and unsaturated porous media underlies groundwater assessment, contaminant transport, agricultural drainage and dam-seepage analysis, yet existing reviews typically address only one link in this chain: a single governing...
Dissolved organic matter (DOM) in coastal rivers plays a key role in land–ocean carbon cycling, yet its spatiotemporal dynamics drivers remain poorly understood. This study investigated five typical rivers across the Bohai Rim, China, using ult...
Transboundary river basins in Central Asia are exposed to interacting reductions in available inflow, increasing water demand and infrastructure losses. This study develops a poly-shock sentinel-node framework for the scenario-based assessment of wat...
Groundwater is essential for drinking and irrigation to ensure a stable life and economic development, especially in semi-arid to arid rural areas such as the Lagnadiz district in central Morocco. However, its occurrence is highly variable in discont...
Accurate precipitation observation in high-altitude regions is of paramount importance for understanding climate variability and mitigating extreme hazards. However, obtaining reliable precipitation measurements in these areas remains a formidable ch...
Rainwater harvesting (RWH) may contribute to sustainable water management in Mediterranean regions, where water availability and demand are highly seasonal. This study examined the potential for RWH and the reliability of storage at the Kestel Campus...
Predicting flood dynamics in data-scarce urban catchments remains a major hydrological challenge, yet physically-based modeling is essential for design mitigation infrastructure. This study assessed the impact of land cover change on the hydrological...
Controlled releases can reveal downstream response timing when calibrated hydraulic routing is unavailable, but sparse stage-only records limit what can be inferred. We analyze one principal 2026 controlled release on the Satsunai River, Japan, using...
The Huaihe River Basin (HRB) lies in the climatic transition zone between northern and southern China. Its precipitation shows obvious spatiotemporal heterogeneity, and frequent meteorological droughts seriously threaten regional food and water secur...
Precipitation forecasts from numerical weather prediction systems can contain systematic errors in both occurrence and magnitude, limiting their usefulness for hydrological applications. This study evaluated two operational precipitation forecasting...
Multi-temporal satellite data were used to examine changes in aufeis area and spatial configuration in the Chuluut River valley, Mongolia, and to compare seasonal vegetation dynamics among sites with different return frequencies of aufeis. Annual auf...
Water quality indices are generally developed for specific water uses, but direct comparisons of indices designed for public water supply and irrigation using the same monitoring dataset remain limited. This study evaluated surface water quality in t...
Soil erosion and sediment redistribution in vineyards often exceed tolerable thresholds, but comparative field measurements across regions remain limited because studies use different methods and sampling designs. This study assesses soil redistribut...
Transverse modification of step geometry has been repeatedly proposed as a means of increasing energy dissipation in stepped spillways, with numerically reported gains ranging from 5.6% to 34.7% for labyrinth configurations, in unresolved contradicti...
Wetlands regulate hydrological processes, maintain biodiversity, and moderate local climate. However, long-term evidence on hydroclimatic variability and anthropogenic pressure in West African coastal wetlands remains limited. This study assesses rai...
More than 100 small sinkholes, 12 to 50 cm wide and 10 to 80 cm deep, developed rapidly in sandy-clay soils in two adjacent plots in south-central Mississippi, USA, following the installation and operation of a nearby high-capacity water well. The lo...
