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Hydrology, Volume 12, Issue 8

2025 August - 27 articles

Cover Story: This study examines the accuracy of flood extent simulations in five U.S. watersheds using the ARC and Curve2Flood topobathymetric flood mapping tools. At each site, we model floods for combinations of four return periods, four digital elevation models, and two stream networks. The experiments are notable because they build on an operational global hydrology model, so subsequent model versions can provide both historical reference and forecasted flood extent products. Accuracy was measured against USGS reference maps using the F-statistic. The largest improvements in accuracy occurred when both the DEM and hydrography datasets were from higher-resolution sources. In some cases, the effect of a coarser but bare earth DEM was more important than higher spatial resolutions. Stream locations were most important at low return periods. View this paper
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Articles (27)

  • Feature Paper
  • Article
  • Open Access
1,507 Views
12 Pages

20 August 2025

The relationship between concentration and discharge (C/Q) is widely studied to understand the behavior of solute transport in complex natural media during storm events. The causes of C/Q hysteresis are due to the delay between the signals of C and Q...

  • Feature Paper
  • Article
  • Open Access
2 Citations
2,965 Views
33 Pages

A Flood Forecasting Method in the Francolí River Basin (Spain) Using a Distributed Hydrological Model and an Analog-Based Precipitation Forecast

  • Daniel Carril-Rojas,
  • Carlo Guzzon,
  • Luis Mediero,
  • Javier Fernández-Fidalgo,
  • Luis Garrote,
  • Maria Carmen Llasat and
  • Raul Marcos-Matamoros

19 August 2025

Recent flooding events in Spain have highlighted the need to develop real-time flood forecasts to estimate streamflows over the next few hours and days. Therefore, a meteorological forecast that provides possible precipitation for the upcoming hours...

  • Feature Paper
  • Article
  • Open Access
2,107 Views
20 Pages

18 August 2025

This study evaluates and corrects ECMWF precipitation forecasts (Set VI-ENS extended) over the confluence of Asian monsoons and westerlies, deriving a time series of correction factors for medium- and long-term hydrological forecasting. Based on a 15...

  • Article
  • Open Access
2,435 Views
19 Pages

18 August 2025

The Model for Urban Stormwater Improvement Conceptualization (MUSIC) serves as a key hydrological tool for simulating urban stormwater runoff pollution and evaluating the treatment performance in Water-Sensitive Urban Designs like constructed wetland...

  • Article
  • Open Access
1,493 Views
17 Pages

16 August 2025

The construction of cascade dam systems profoundly reshapes river hydrological processes, yet the analysis of their spatial heterogeneity effects has long been constrained by the mechanistic deficiencies and interpretability limitations of traditiona...

  • Article
  • Open Access
2,122 Views
19 Pages

15 August 2025

Engineered wetland has been used as a Best Management Practice (BMP) to remove pollutants and maintain water quality in watersheds. This study is focused on developing models to analyze the impacts of discharges on the efficiency of wetlands to impro...

  • Article
  • Open Access
1 Citations
1,089 Views
14 Pages

Effects of Climate Variables and Human Activities on Groundwater Level Fluctuations in Unconsolidated Sedimentary Aquifers: A Data-Driven Approach

  • Liu Yang,
  • Ming Gao,
  • Jiameng Chen,
  • Wenqing Shi,
  • Changhong Hou,
  • Zichun Liu,
  • Cheng Luo,
  • Jiahui Yu,
  • Xiangyu Yang and
  • Jie Dong

15 August 2025

Groundwater level (GWL) in unconfined aquifers is highly susceptible to climate variables and human activities, exhibiting nonlinear fluctuations; these can further contribute to or exacerbate environmental hazards, such as land subsidence. Understan...

  • Article
  • Open Access
1,352 Views
23 Pages

Precision Identification of Irrigated Areas in Semi-Arid Regions Using Optical-Radar Time-Series Features and Ensemble Machine Learning

  • Weifeng Li,
  • Changlai Xiao,
  • Xiujuan Liang,
  • Weifei Yang,
  • Jiang Zhang,
  • Rongkun Dai,
  • Yuhan La,
  • Le Kang and
  • Deyu Zhao

14 August 2025

Addressing limitations in remote sensing irrigation monitoring (insufficient resolution, single-source constraints, poor terrain adaptability), this study developed a high-precision identification framework for Jianping County, China, a semi-arid reg...

  • Article
  • Open Access
1,261 Views
24 Pages

Intermittency as an Environmental Filter: Diatom Traits and Water Quality Indicators in a Hydrodynamic Context

  • Alexander G. Rusanov,
  • Zsuzsa Trábert,
  • Keve T. Kiss,
  • János L. Korponai,
  • Mikhail Y. Kolobov,
  • Tibor Bíró,
  • Edit Vadkerti and
  • Éva Ács

13 August 2025

Global climate changes have led to dramatic increases in drought durations in previously permanent streams, impacting the biodiversity and functioning of river ecosystems. However, the response of benthic diatom communities to hydrological intermitte...

  • Article
  • Open Access
1 Citations
2,905 Views
29 Pages

12 August 2025

Water quality monitoring is a key requirement for fulfilling various national environmental policies, but with many competing needs and limited resources, data collected can suffer from both spatial and temporal deficiencies. Modelling offers the pot...

  • Article
  • Open Access
1,730 Views
17 Pages

Method for Establishing Heavy Rainfall Equations Based on Regional Characteristics: Transformation of Maximum Daily Precipitation

  • Laura Thebit de Almeida,
  • Roberto Avelino Cecílio,
  • Marcel Carvalho Abreu and
  • Ivana Patente Torres

12 August 2025

Modeling heavy rainfall patterns is essential for designing hydraulic structures, planning land use and water resources, and predicting disasters, among others. Usually, heavy rainfall is characterized by curves that relate the intensity, duration, a...

  • Article
  • Open Access
2,840 Views
15 Pages

11 August 2025

Flooding frequency in the lower Yellow River (YR) exhibited an abrupt increase post-934 CE, causing catastrophic societal disruptions. However, the quantitative relationship between this abrupt increase and the intensification of human activity in th...

  • Article
  • Open Access
1,176 Views
16 Pages

10 August 2025

Rapid urbanization and climate change have intensified urban flood risks, necessitating resilient upstream infrastructure to ensure metropolitan water security and effective flood mitigation. Gravity dams, as critical components of urban flood protec...

  • Article
  • Open Access
1,810 Views
20 Pages

Spatiotemporal Changes in Extreme Temperature and Associated Large-Scale Climate Driving Forces in Chongqing

  • Chujing Wang,
  • Yuefeng Wang,
  • Chaogui Lei,
  • Sitong Wei,
  • Xingying Huang,
  • Zhenghui Zhu and
  • Shuqiong Zhou

Due to global warming, extreme temperature events have become increasingly prevalent, posing significant threats to both socioeconomic development and human safety. While previous studies have extensively examined the influence of individual climatic...

  • Article
  • Open Access
3 Citations
2,511 Views
30 Pages

The present study explores the application of RNNs for the prediction and propagation of flood waves along a section of the Bârsa River, Romania, as a fast alternative to classical hydraulic models, aiming to identify new ways to alert the popu...

  • Article
  • Open Access
1 Citations
1,349 Views
29 Pages

Analysis of Spatiotemporal Characteristics of Global TCWV and AI Hybrid Model Prediction

  • Longhao Xu,
  • Kebiao Mao,
  • Zhonghua Guo,
  • Jiancheng Shi,
  • Sayed M. Bateni and
  • Zijin Yuan

Extreme precipitation events severely impact agriculture, reducing yields and land use efficiency. The spatiotemporal distribution of Total Column Water Vapor (TCWV), the primary gaseous form of water, directly influences sustainable agricultural man...

  • Article
  • Open Access
1 Citations
1,191 Views
16 Pages

Modeling and Spatiotemporal Analysis of Actual Evapotranspiration in a Desert Steppe Based on SEBS

  • Yanlin Feng,
  • Lixia Wang,
  • Chunwei Liu,
  • Baozhong Zhang,
  • Jun Wang,
  • Pei Zhang and
  • Ranghui Wang

Accurate estimation of actual evapotranspiration (ET) is critical for understanding hydrothermal cycles and ecosystem functioning in arid regions, where water scarcity governs ecological resilience. To address persistent gaps in ET quantification, th...

  • Article
  • Open Access
3 Citations
2,394 Views
28 Pages

Unifying Flood-Risk Communication: Empowering Community Leaders Through AI-Enhanced, Contextualized Storytelling

  • Michal Zajac,
  • Connor Kulawiak,
  • Shenglin Li,
  • Caleb Erickson,
  • Nathan Hubbell and
  • Jiaqi Gong

Floods pose a growing threat globally, causing tragic loss of life, billions in economic damage annually, and disproportionately affecting socio-economically vulnerable populations. This paper aims to improve flood-risk communication for community le...

  • Article
  • Open Access
1 Citations
1,277 Views
20 Pages

Understanding groundwater and surface water interaction is critical for managing water resources, particularly in water-stressed and rapidly urbanizing areas, such as many parts of Africa. A survey was conducted of borehole, spring, seep and river wa...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,230 Views
20 Pages

Impact of Elevation and Hydrography Data on Modeled Flood Map Accuracy Using ARC and Curve2Flood

  • Taylor James Miskin,
  • L. Ricardo Rosas,
  • Riley C. Hales,
  • E. James Nelson,
  • Michael L. Follum,
  • Joseph L. Gutenson,
  • Gustavious P. Williams and
  • Norman L. Jones

This study assesses the accuracy of flood extent predictions in five U.S. watersheds. We generated flood maps for four return periods using various digital elevation models (DEMs)—FABDEM, SRTM, ALOS, and USGS 3DEP—and two versions of the...

  • Article
  • Open Access
4,122 Views
17 Pages

Hurricane Helene made landfall near Perry (Latitude 30.1 N) in the Big Bend area of Florida with a central pressure of 939 hPa. It moved northwards creating devastating damage and loss of life; however, the greatest damage and number of fatalities oc...

  • Feature Paper
  • Article
  • Open Access
2 Citations
2,515 Views
28 Pages

To date, few studies have been published for cities in Germany that take into account climate change and changing hydrologic patterns due to increases in building density. This study investigates the efficiency of LID for past and future climate in t...

  • Feature Paper
  • Article
  • Open Access
2 Citations
1,806 Views
26 Pages

Frequency analysis is essential for designing hydraulic structures and managing water resources, as it helps assess hydrological extremes. However, changes in river basins can impact their accuracy, complicating the link between discharge and return...

  • Article
  • Open Access
1 Citations
1,351 Views
27 Pages

Assessing the Impact of Assimilated Remote Sensing Retrievals of Precipitation on Nowcasting a Rainfall Event in Attica, Greece

  • Aikaterini Pappa,
  • John Kalogiros,
  • Maria Tombrou,
  • Christos Spyrou,
  • Marios N. Anagnostou,
  • George Varlas,
  • Christine Kalogeri and
  • Petros Katsafados

Accurate short-term rainfall forecasting, an essential component of the broader framework of nowcasting, is crucial for managing extreme weather events. Traditional forecasting approaches, whether radar-based or satellite-based, often struggle with l...

  • Feature Paper
  • Article
  • Open Access
2 Citations
2,047 Views
21 Pages

Selecting an appropriate model for discharge simulation remains a fundamental challenge in modeling. While artificial neural networks (ANNs) have been widely accepted due to detecting streamflow patterns, they require large datasets for efficient tra...

  • Article
  • Open Access
1 Citations
1,904 Views
11 Pages

Accurate dynamic hydrological models are often too complex and costly for the rapid, broad-scale screening necessitated for proactive land-use planning against increasing cloudburst risks. This paper demonstrates the use of GPT-4 to develop a GUI-bas...

  • Article
  • Open Access
1,430 Views
15 Pages

Definition of Groundwater Management Zones for a Fissured Karst Aquifer in Semi-Arid Northeastern Brazil

  • Hailton Mello da Silva,
  • Luiz Rogério Bastos Leal,
  • Cezar Augusto Teixeira Falcão Filho,
  • Thiago dos Santos Gonçalves and
  • Harald Klammler

The objective of this study is to define groundwater management zones for a complex deformed and fissured Precambrian karst aquifer, which underlies one of the most important agricultural areas in the semi-arid region of Irecê, Bahia, Brazil. I...

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Hydrology - ISSN 2306-5338