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Hydrology, Volume 12, Issue 9

September 2025 - 23 articles

Cover Story: Stream temperatures are expected to increase with ongoing air temperature changes attributed to climate variability, yet the influence of physical–environmental variables on stream temperature is less well-known. Changes in stream thermal sensitivity, maximum and minimum stream temperatures, and correlation between solar radiation and summer temperature increases were evaluated over a six-year period along a 12 km mainstem through forest, agriculture, and urban landscapes. In agricultural areas with 57% effective shade (ES), solar radiation was the main heating factor, while aspect and tributary conditions were more significant in forest reaches with over 84% ES. In urban areas with 79% ES, stream temperatures were cooler, with streambank height and increased streamflow attributed to groundwater inflow being the primary cooling factors. View this paper
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Articles (23)

  • Article
  • Open Access
765 Views
25 Pages

20 September 2025

Climate change affects streamflow through changes in precipitation, temperature, and extreme weather events. These changes will impact water resource availability significantly. Thus, understanding the impacts of climate change on hydrology is essent...

  • Article
  • Open Access
638 Views
25 Pages

Spatiotemporal Trends of Precipitation and Natural Streamflow in the Upper Yangtze River Basin from 1951 to 2020

  • Yiming Ma,
  • Zhi Xu,
  • Zhiqiang Dong,
  • Hui Liu,
  • Xichao Gao,
  • Xiang Cao,
  • Yuchen Li,
  • Lili Liang,
  • Zhiyong Yang and
  • Xiaochen Li
  • + 3 authors

19 September 2025

The Yangtze River Basin is vital to China’s water security and flood management yet lacks a basin-wide quantitative assessment of long-term hydroclimatic changes. This study uses the high-resolution CMFD 2.0 dataset and the VIC model to evaluat...

  • Article
  • Open Access
518 Views
41 Pages

19 September 2025

Based on long-term series of observations of water flow of 22 small and medium-sized rivers in the forest-steppe and steppe east of the East European Plain, an analysis of its trend changes in 1961–2022, i.e., in the time interval of the Anthro...

  • Article
  • Open Access
508 Views
25 Pages

Evaluating Country-Scale Irrigation Demand Through Parsimonious Agro-Hydrological Modeling

  • Nike Chiesa Turiano,
  • Marta Tuninetti,
  • Francesco Laio and
  • Luca Ridolfi

18 September 2025

Climate change is expected to reduce water availability during cropping season, while growing populations and rising living standards will increase the global water demand. This creates an urgent need for national water management tools to optimize w...

  • Article
  • Open Access
513 Views
23 Pages

18 September 2025

Wastewater overflows (WOs) are a growing concern for water quality and ecological health in urban estuaries. This study provides a robust water quality and ecological assessment of WOs from four pump stations discharging into the Waimea Estuary, Aote...

  • Article
  • Open Access
950 Views
33 Pages

16 September 2025

This study describes the challenges and solutions encountered when developing a high-resolution, process-based hydrological model of the Adige River Lowland Basin (ARLB), a flat, intensively managed agricultural region in northeastern Italy. The mode...

  • Article
  • Open Access
1,220 Views
23 Pages

Machine Learning Approaches for Simulating Temporal Changes in Bed Profiles Around Cylindrical Bridge Pier: A Comparative Analysis

  • Ahad Molavi,
  • Fariborz Ahmadzadeh Kaleybar,
  • Namal Rathnayake,
  • Upaka Rathnayake,
  • Mehdi Fuladipanah and
  • Hazi Mohammad Azamathulla

15 September 2025

Submerged vanes offer a promising solution for reducing scour depth around hydraulic structures such as bridge piers by modifying near-bed flow patterns. However, temporal changes in bed profiles around a cylindrical pier remain insufficiently quanti...

  • Article
  • Open Access
1,968 Views
33 Pages

Hydrochemical Variability in Karst Hypothermal Mineral Springs of Greece

  • Nerantzis Kazakis,
  • Vasiliki Stavropoulou,
  • Maria Margarita Ntona,
  • Christos Pouliaris,
  • Maria Papailiopoulou,
  • Eleni-Anna Nanou,
  • Apostolis Tsoutanis,
  • Dimitra Lambropoulou and
  • Eleni Zagana

13 September 2025

In Greece, the geodynamics of karst hypothermal–mineral springs, in which often shallow fresh groundwater is intermixed, is not well known. This study aims to investigate the monthly hydrochemical variability of three karst hypothermal mineral...

  • Review
  • Open Access
1,060 Views
26 Pages

Nature-Based Approaches for Managing Bioavailable Phosphorus in Aquatic Ecosystems

  • Marcela Pavlíková,
  • Klára Odehnalová,
  • Štěpán Zezulka,
  • Eliška Maršálková,
  • Adéla Lamaczová and
  • Blahoslav Maršálek

10 September 2025

High levels of phosphorus cause eutrophication, leading to water blooms and making the water undesirable in aquatic environments. Surface water pollution by phosphorus (P) is caused by both point and diffuse sources. Despite the recent technological...

  • Article
  • Open Access
660 Views
30 Pages

Climate Change and Its Potential Impact on the Conservation of Wooden Pole Dwellings in Lake Bolsena: Insights from Climate Proxy Data and High-Frequency Water Monitoring

  • Swati Tamantini,
  • Maria Cristina Moscatelli,
  • Francesco Cappelli,
  • Barbara Barbaro,
  • Egidio Severi,
  • Federica Antonelli,
  • Giulia Galotta,
  • Marco Ciabattoni and
  • Manuela Romagnoli

10 September 2025

This study examines the impact of recent climatic trends on the preservation of submerged wooden structures at the Gran Carro archaeological site in Lake Bolsena, Italy. Climatic data from the Bolsena Meteorological Station were analysed alongside in...

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Hydrology - ISSN 2306-5338Creative Common CC BY license