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Hydrology, Volume 12, Issue 7

2025 July - 35 articles

Cover Story: Groundwater resources worldwide are facing a decline in hydraulic heads due to the combined impacts of urbanization and climate forcings. This study evaluated the impact of these two forcings on groundwater resources during the Pre- and Post-Urbanization Periods (PreUP:1980–1988; PostUP:2000–2008) within a multi-layer aquifer system. Our findings indicate a significant decrease in hydraulic heads of about 5 m from the PreUP to PostUP in the unconfined aquifer, influenced by land use and climate change. In contrast, the average head decline in deep confined aquifers is about 4 m and is mainly influenced by long-term climatic variations. The impervious land use types experienced greater declines in hydraulic heads than permeable areas due to impeded groundwater recharge, which exacerbates the climate variability effect. View this paper
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Articles (35)

  • Feature Paper
  • Article
  • Open Access
3,353 Views
28 Pages

Evolution of Rainfall Characteristics in Catalonia, Spain, Using a Moving-Window Approach (1950–2022)

  • Carina Serra,
  • María del Carmen Casas-Castillo,
  • Raül Rodríguez-Solà and
  • Cristina Periago

A comprehensive analysis of the evolution of rainfall characteristics in Catalonia, NE Spain, was conducted using monthly data from 72 rain gauges over the period 1950–2022. A moving-window approach was applied at annual, seasonal, and monthly...

  • Article
  • Open Access
1,444 Views
24 Pages

The Eastern Huang–Huai region of China is a representative mining area with a high groundwater level. High-intensity underground mining activities have not only induced land cover and land use changes (LUCC) but also significantly changed the w...

  • Feature Paper
  • Article
  • Open Access
1 Citations
3,973 Views
17 Pages

Poyang Lake, a large floodplain lake, plays a crucial role in the ecological safety and quality of life in surrounding areas. Over the past decade (2013–2022), amid economic development and environmental changes, the water environment of Poyang...

  • Review
  • Open Access
4 Citations
5,531 Views
19 Pages

Aquatic Pollution in the Bay of Bengal: Impacts on Fisheries and Ecosystems

  • Nowrin Akter Shaika,
  • Saleha Khan,
  • Sadiqul Awal,
  • Md. Mahfuzul Haque,
  • Abul Bashar and
  • Halis Simsek

Aquatic pollution in the Bay of Bengal has become a major environmental issue with long-term impacts on fisheries, biodiversity, and ecosystems. The review paper examines the major pathways, sources, and ecological consequences of aquatic pollution i...

  • Article
  • Open Access
1,131 Views
19 Pages

Reproducibility Limits of the Frequency Equation for Estimating Long-Linear Internal Wave Periods in Lake Biwa

  • Hibiki Yoneda,
  • Chunmeng Jiao,
  • Keisuke Nakayama,
  • Hiroki Matsumoto and
  • Kazuhide Hayakawa

In a large deep lake, the generation of internal Kelvin waves and internal Poincaré waves due to wind stress on the lake surface is a significant phenomenon. These internal waves play a crucial role in material transport within the lake and ha...

  • Article
  • Open Access
2 Citations
1,550 Views
26 Pages

Evapotranspiration Partitioning in Selected Subtropical Fruit Tree Orchards Based on Sentinel 2 Data Using a Light Gradient-Boosting Machine (LightGBM) Learning Model in Malelane, South Africa

  • Prince Dangare,
  • Zama E. Mashimbye,
  • Paul J. R. Cronje,
  • Joseph N. Masanganise,
  • Shaeden Gokool,
  • Zanele Ntshidi,
  • Vivek Naiken,
  • Tendai Sawunyama and
  • Sebinasi Dzikiti

The accurate estimation of evapotranspiration (ET) and its components are vital for water resource management and irrigation planning. This study models tree transpiration (T) and ET for grapefruit, litchi, and mango orchards using light gradient-boo...

  • Article
  • Open Access
1,093 Views
19 Pages

Dynamics of Nocturnal Evapotranspiration in a Dry Region of the Chinese Loess Plateau: A Multi-Timescale Analysis

  • Fengnian Guo,
  • Dengfeng Liu,
  • Shuhong Mo,
  • Qiang Li,
  • Fubo Zhao,
  • Mingliang Li and
  • Fiaz Hussain

Evapotranspiration (ET) is an important part of agricultural water consumption, yet little is known about nocturnal evapotranspiration (ETN) patterns. An eddy covariance system was used to observe ET over five consecutive years (2020–2024) duri...

  • Article
  • Open Access
1 Citations
1,781 Views
19 Pages

A deep interaction between groundwater and surface hydrology characterizes karst environments. These settings feature closed depressions, whose hydrological role varies depending on whether they have genetic and hydraulic relationships with overland&...

  • Article
  • Open Access
2,173 Views
15 Pages

Rivers play a crucial role in the hydrological cycle and serve as essential freshwater resources for both human populations and ecosystems. Climate change significantly alters precipitation patterns and river discharge variability. However, the impac...

  • Article
  • Open Access
1 Citations
4,129 Views
14 Pages

Traditional numerical models have been widely employed to simulate the transport of multispecies reactive contaminants in groundwater systems; however, their high computational cost limits their applicability in real-time or large-scale scenarios. Re...

  • Article
  • Open Access
2,519 Views
19 Pages

Identifying the evolutionary trends of water conservation functions and their climatic impacts under future scenarios is crucial for enhancing regional ecological security. This study integrates the PLUS and InVEST models with projected land use and...

  • Article
  • Open Access
3 Citations
1,552 Views
31 Pages

Accurate measurement and understanding of the spatiotemporal distribution of soil water content (SWC) are crucial in various environmental and agricultural sectors. The present study implements a novel precision agriculture (PA) approach under sugarb...

  • Article
  • Open Access
1 Citations
2,937 Views
16 Pages

Coastal regions are increasingly threatened by compound flooding due to the increasing intensities of storm surges and rainfall under climate change. However, relevant research has been limited because significant amounts of data, scenarios, and comp...

  • Article
  • Open Access
1,388 Views
13 Pages

Uncertainty in Kinetic Energy Models for Rainfall Erosivity Estimation in Semi-Arid Regions

  • José Bandeira Brasil,
  • Ana Célia Maia Meireles,
  • Carlos Wagner Oliveira,
  • Sirleide Maria de Menezes,
  • Francisco Dirceu Duarte Arraes and
  • Maria Simas Guerreiro

The Brazilian semi-arid Northeast plays a critical role in regional hydrology, where rainfall is marked by pronounced temporal variability and short duration, presenting significant challenges for understanding and managing hydrological and erosive p...

  • Article
  • Open Access
1,136 Views
16 Pages

Effects of Climate Change and Human Activities on the Flow of the Muling River

  • Xiang Meng,
  • Chang-Lei Dai,
  • Yi-Ding Zhang,
  • Geng-Wei Liu,
  • Xiao Yang and
  • Xue Feng

In the context of global warming and the intensification of human activities, the change in runoff is also increasing. It is very important to determine the change in runoff for the rational utilization of water resources. In order to determine the i...

  • Article
  • Open Access
2 Citations
1,321 Views
29 Pages

Weathering Records from an Early Cretaceous Syn-Rift Lake

  • Yaohua Li,
  • Qianyou Wang and
  • Richard H. Worden

The Aptian–Albian interval represents a significant cooling phase within the Cretaceous “hothouse” climate, marked by dynamic climatic fluctuations. High-resolution continental records are essential for reconstructing terrestrial cl...

  • Article
  • Open Access
1 Citations
1,862 Views
24 Pages

Extreme rainfall in urban areas can cause major economic damage, a problem expected to intensify with climate change. Despite this, high-resolution studies at the city scale remain limited. This study analyzes rainfall organization and storm dynamics...

  • Article
  • Open Access
4 Citations
2,210 Views
25 Pages

The mean annual water balance is essential for evaluating water availability in a catchment and planning water resources. Climate change alters this balance by affecting precipitation, evapotranspiration, and overall water availability. This study an...

  • Article
  • Open Access
8 Citations
1,623 Views
23 Pages

Experimental Study on Influence of Height of Full-Width Plate Weirs on Flow Behavior, Discharge, and Energy Dissipation

  • Ali Mahdian Khalili,
  • Hossein Sohrabzadeh Anzani,
  • Mehdi Hamidi and
  • Sameh Ahmed Kantoush

The role of weirs in flow regulation in water resources infrastructure and flood control is well known. In the meantime, the study of full-width plate weirs (FWPW), due to their wide application and lacking findings, is of great importance. In this s...

  • Article
  • Open Access
2 Citations
1,424 Views
27 Pages

Differential Evolution in Hydrochemical Characteristics Amongst Porous, Fissured and Karst Aquifers in China

  • Chengsong Li,
  • Jie Fang,
  • Feisheng Feng,
  • Tingting Yao,
  • Yongping Shan and
  • Wanli Su

The efficacy of water resource management and protection hinges on a profound understanding of the controlling factors and regulatory mechanisms that shape groundwater chemistry within aquifers. Despite this, our comprehension of how groundwater chem...

  • Article
  • Open Access
909 Views
24 Pages

The Yellow River is a renowned sediment-laden river and analyzing its water–sediment evolution characteristics and trends is critical for rational water resource utilization and water security. Using annual runoff and sediment transport data fr...

  • Article
  • Open Access
2 Citations
2,776 Views
20 Pages

Impacts of Urbanization and Climate Variability on Groundwater Environment in a Basin Scale

  • Olawale Joshua Abidakun,
  • Mitsuyo Saito,
  • Shin-ichi Onodera and
  • Kunyang Wang

Globally, groundwater resources are experiencing a decline in hydraulic heads resulting from the dual effects of urbanization and climate change, highlighting the need for integrated and sustainable water resources management. Urban development in th...

  • Article
  • Open Access
1 Citations
1,447 Views
25 Pages

Flooding is a recurrent natural hazard in Romania, causing significant socio-economic impacts. Historical data highlights the severity of floods, particularly the unprecedented flood of 1926. Between 1960 and 2010, Romania experienced over 400 major...

  • Article
  • Open Access
1,332 Views
31 Pages

In data-scarce regions and ungauged basins, remotely sensed evapotranspiration (ET) products are increasingly employed to support hydrological model calibration. In this study, a high-resolution hydrological model was developed for the Upper Anthemou...

  • Article
  • Open Access
915 Views
19 Pages

The advent of machine learning (ML) has significantly transformed hydrology, particularly in the simulation of hydrological flows. However, ML techniques have not been employed to the same extent in stochastic hydrology. In applied sciences, the most...

  • Article
  • Open Access
1,660 Views
14 Pages

A Paleo-Perspective of 21st Century Drought in the Hron River (Slovakia)

  • Igor Leščešen,
  • Abel Andrés Ramírez Molina and
  • Glenn Tootle

The Hron River is a vital waterway in central Slovakia. In evaluating observed streamflow records for the past ~90 years, the Hron River displayed historically low hydrologic summer (April–May–June–July–August–September...

  • Feature Paper
  • Article
  • Open Access
1 Citations
1,962 Views
22 Pages

This study develops a numerical model to simulate groundwater flow and contaminant transport in a “typical hydrogeological environment” of northern New Jersey, addressing freshwater decline. Focusing on the Lower Passaic water management...

  • Feature Paper
  • Article
  • Open Access
6 Citations
4,157 Views
19 Pages

Deep Learning-Based Daily Streamflow Prediction Model for the Hanjiang River Basin

  • Jianze Huang,
  • Jialang Chen,
  • Haijun Huang and
  • Xitian Cai

The sharp decline in streamflow prediction accuracy with increasing lead times remains a persistent challenge for effective water resources management and flood mitigation. In this study, we developed a coupled deep learning model for daily streamflo...

  • Feature Paper
  • Article
  • Open Access
1 Citations
1,552 Views
25 Pages

Comparative Analysis of Satellite-Based Rainfall Products for Drought Assessment in a Data-Poor Region

  • Hansini Gayanthika,
  • Dimuthu Lakshitha,
  • Manthika Chathuranga,
  • Gouri De Silva and
  • Jeewanthi Sirisena

Drought is one of the most impactful natural disasters, and it significantly impacts three main sectors of a country: the environment, society, and the economy. Therefore, drought assessment and monitoring are essential for reducing vulnerability and...

  • Article
  • Open Access
1 Citations
2,304 Views
17 Pages

Monitoring the Impacts of Human Activities on Groundwater Storage Changes Using an Integrated Approach of Remote Sensing and Google Earth Engine

  • Sepide Aghaei Chaleshtori,
  • Omid Ghaffari Aliabad,
  • Ahmad Fallatah,
  • Kamil Faisal,
  • Masoud Shirali,
  • Mousa Saei and
  • Teodosio Lacava

Groundwater storage refers to the water stored in the pore spaces of underground aquifers, which has been increasingly affected by both climate change and anthropogenic activities in recent decades. Therefore, monitoring their changes and the factors...

  • Review
  • Open Access
1 Citations
2,036 Views
29 Pages

Half-Century Review and Advances in Closed-Form Functions for Estimating Soil Water Retention Curves

  • Ali Rasoulzadeh,
  • Javad Bezaatpour,
  • Javanshir Azizi Mobaser and
  • Jesús Fernández-Gálvez

This review provides a comprehensive overview of the closed-form expressions developed for estimating the soil water retention curve (SWRC) from 1964 to the present. Since the concept of the SWRC was introduced in 1907, numerous closed-form functions...

  • Article
  • Open Access
1,461 Views
14 Pages

Refining Rainfall Derived from Satellite Radar for Estimating Inflows at Lam Pao Dam, Thailand

  • Nathaporn Areerachakul,
  • Jaya Kandasamy,
  • Saravanamuthu Vigneswaran and
  • Kittitanapat Bandhonopparat

This project aimed to evaluate the use of meteorological satellite-derived rainfall data to estimate water inflows to dams. In this study, the Lam Pao Dam in the Chi Basin, Thailand, was used as a case study. Rainfall data were obtained using the PER...

  • Article
  • Open Access
3 Citations
1,742 Views
30 Pages

Addressing Weather Data Gaps in Reference Crop Evapotranspiration Estimation: A Case Study in Guinea-Bissau, West Africa

  • Gabriel Garbanzo,
  • Jesus Céspedes,
  • Marina Temudo,
  • Tiago B. Ramos,
  • Maria do Rosário Cameira,
  • Luis Santos Pereira and
  • Paula Paredes

Crop water use (ETc) is typically estimated as the product of crop evapotranspiration (ETo) and a crop coefficient (Kc). However, the estimation of ETo requires various meteorological data, which are often unavailable or of poor quality, particularly...

  • Article
  • Open Access
3 Citations
2,808 Views
29 Pages

Groundwater is the main source of water for both domestic and agricultural use in arid regions. This study assessed the hydrogeochemical characteristics and suitability of groundwater for drinking and irrigation in Kenya’s Ewaso Ng’iro&nd...

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Hydrology - ISSN 2306-5338