Article
Engineering, Civil
G. Z. Ndhlovu, Y. E. Woyessa
Summary: This study successfully simulated hydrological processes in the Zambezi River Basin using high-resolution climate data and SWAT model, which showed that using gridded climate data for hydrological modeling in data scarce regions is an effective method.
JOURNAL OF HYDROLOGY
(2021)
Article
Geosciences, Multidisciplinary
Zhenghui Fu, Yulei Xie, Yang Zhang, Xia Jiang, Huaicheng Guo, Shuhang Wang
Summary: In this study, various models were integrated to assess meteorological and hydrological parameters in the Huangshui watershed on the Qinghai-Tibet Plateau. The results suggest that under future climate change scenarios, precipitation is expected to increase during the wet season from May to September, while flows and available water resources will decrease.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Engineering, Civil
Pierre-Yves Jeannin, Guillaume Artigue, Christoph Butscher, Yong Chang, Jean-Baptiste Charlier, Lea Duran, Laurence Gill, Andreas Hartmann, Anne Johannet, Herve Jourde, Alireza Kavousi, Tanja Liesch, Yan Liu, Martin Luthi, Arnauld Malard, Naomi Mazzilli, Eulogio Pardo-Iguzquiza, Dominique Thiery, Thomas Reimann, Philip Schuler, Thomas Woehling, Andreas Wunsch
Summary: The complexity of karst groundwater flow modelling is demonstrated through various simulation approaches, showing that model performance is influenced by architecture and time steps, as well as the way data is transformed. While some global models performed well, most models still struggled with predicting baseflow conditions accurately.
JOURNAL OF HYDROLOGY
(2021)
Article
Water Resources
Anna Maria De Girolamo, Abdelmalek Drouiche, Giovanni Francesco Ricci, Giuseppe Parete, Francesco Gentile, Taha-Hocine Debieche
Summary: This study defines a procedure to characterize the flow regimes of non-perennial rivers in regions with limited data availability and provides insights into the management of temporary rivers under the Mediterranean climate.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Multidisciplinary Sciences
Sangam Shrestha, Deg-Hyo Bae, Panha Hok, Suwas Ghimire, Yadu Pokhrel
Summary: This study presents a comprehensive analysis of the impacts of climate change on hydrology in 19 river basins in South and Southeast Asia, finding that these regions will experience increased warmth, wetness, and river flow under climate change. The study highlights the high spatiotemporal variability in the impact of climate change and emphasizes the importance of similar studies on a larger scale for broader understanding.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Sandeep Shukla, Sanjay K. Jain, Mitthan Lal Kansal
Summary: Himalayan rivers play a crucial role in water supply for northern India, with snowmelt runoff being the main contributor to river discharge. Climate change is expected to increase precipitation and temperature, leading to a rise in streamflow by over 11%-19% at the end of the century under different emissions scenarios.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Damian Badora, Rafal Wawer, Aleksandra Krol-Badziak, Anna Nierobca, Jerzy Kozyra, Beata Jurga
Summary: The study assesses the water balance of the Vistula River basin in 2050 based on climate scenarios and models, highlighting the unclear trends in water management for the coming decades.
Article
Environmental Sciences
Gebrekidan Worku, Ermias Teferi, Amare Bantider, Yihun T. Dile
Summary: This study examines the response of hydrological processes to different climate change scenarios in the Jemma sub-basin of the Blue Nile Basin. The results suggest that climate change may lead to decreased precipitation, increased temperature, reduced surface runoff, total water yield, and increased evapotranspiration in the area. The study recommends water management structures to conserve water for agriculture and ecosystem services in the Jemma sub-basin and similar areas in Ethiopia.
CLIMATE RISK MANAGEMENT
(2021)
Article
Environmental Sciences
Suraj Kumar Singh, Shruti Kanga, Bhavneet Gulati, Mirna Raic, Bhartendu Sajan, Bojan Durin, Saurabh Singh
Summary: This research employs the SWAT+ model to study hydrological dynamics in the Beas Basin. The objectives include accurately quantifying water balance, simulating key hydrological components, and analyzing trends in fluvial discharge and sediment transport. The findings have practical implications for water resource management and provide a direction for future research.
Article
Engineering, Civil
Xie Lian, Xiaolong Hu, Jiang Bian, Liangsheng Shi, Lin Lin, Yuanlai Cui
Summary: This study improves the accuracy of streamflow estimation by replacing the classical evapotranspiration (ET) module with a data-driven submodel in two hydrological models. The results show that streamflow is more sensitive to ET under the saturation excess runoff mechanism. The ETRF-XAJ model outperforms the XAJ model, highlighting the potential of hybrid models for improved streamflow simulation.
JOURNAL OF HYDROLOGY
(2023)
Article
Engineering, Civil
Keivan Karimizadeh, Jaeeung Yi
Summary: This study investigated the effects of climate change on various factors in the Saghez watershed in Iran, using different models and scenarios. The results showed that future precipitation is projected to decrease, while minimum and maximum temperatures are expected to increase. Surface runoff is also expected to decrease in the future. The study identified the key factors influencing watershed runoff. These findings can be valuable for mitigating the impacts of climate change and developing long-term plans for watershed and water resource management.
WATER RESOURCES MANAGEMENT
(2023)
Article
Environmental Sciences
Andrey Bugaets, Boris Gartsman, Tatiana Gubareva, Sergei Lupakov, Andrey Kalugin, Vladimir Shamov, Leonid Gonchukov
Summary: This study compares the simulated streamflow composition of three well-known rainfall-runoff models (ECOMAG, HBV, SWAT) with the hydrograph decomposition evaluated using End-Member Mixing Analysis (EMMA). The study finds significant differences in the runoff sources dynamics between two neighboring catchments. ECOMAG is the most conformable to the EMMA outcome, HBV reflects flood events well, and SWAT exhibits distinctive behavior compared to other models. The results show that, in addition to the standard efficiency criteria of simulated and observed runoff proximity, EMMA analysis can provide useful auxiliary information for the validation of modeling results.
Article
Computer Science, Interdisciplinary Applications
Jinfeng Ma, Hua Zheng, Ruonan Li, Kaifeng Rao, Yanzheng Yang, Weifeng Li
Summary: In this paper, a surrogate modelling (SM) framework based on the Hadoop cloud is proposed to approximate complex hydrological models. The substantial model runs required by SM were solved using the Hadoop cloud. Polynomial chaos expansion (PCE) was fitted and verified using the high-fidelity model DOE and achieved comparable results to the standard Monte Carlo approach but with significantly improved efficiency. The proposed framework greatly reduces computational costs and is ideal for complex hydrological model simulation and optimization.
JOURNAL OF HYDROINFORMATICS
(2023)
Article
Environmental Sciences
Pooja Preetha, Ashraf Al-Hamdan
Summary: This study aims to use satellite remotely sensed data and hydrological modeling to predict the spatiotemporal sediment yields in watershed models. By incorporating dynamic models of crop and cover management and soil erodibility, the algorithm accurately predicts sediment yields and highlights the importance of real-time hydrological modeling with high-quality spatial and temporal data.
Article
Geosciences, Multidisciplinary
Priyanka Gunjan, Surendra Kumar Mishra, Anil Kumar Lohani, Surendra Kumar Chandniha
Summary: The aim of this study is to evaluate the distribution of hydrological responses towards water balance components for a watershed. The study focused on the water balance in the Mahanadi river basin of India, analyzing the impact of Landuse Land Cover (LULC) on runoff using the SWAT model. The results showed that significant increases in runoff and decreases in groundwater contribution were observed from 1994 to 2014 due to changes in LULC.
Article
Engineering, Civil
Roberto D. Ponce Oliva, Esteban Arias Montevechio, Francisco Fernandez Jorquera, Felipe Vasquez-Lavin, Alejandra Stehr
Summary: Adapting to new climate conditions requires a complex mix of knowledge, planning, and coordination, with potential sectoral interdependencies posing challenges to success. This paper evaluates the impacts of different adaptation options on a multiuser river basin, highlighting the varying consequences of implementing different measures.
WATER RESOURCES MANAGEMENT
(2021)
Article
Environmental Sciences
Rebeca Martinez-Retureta, Mauricio Aguayo, Norberto J. Abreu, Alejandra Stehr, Iongel Duran-Llacer, Lien Rodriguez-Lopez, Sabine Sauvage, Jose-Miguel Sanchez-Perez
Summary: The study predicts that in the intermediate future, average temperatures will increase by up to 1.7 degrees Celsius and annual precipitation will decrease by up to 210 mm in the study area. The model shows a worsening impact on all parameters as elevation increases in both basins.
Article
Environmental Sciences
Roberto D. Ponce Oliva, Francisco J. Fernandez, Felipe Vasquez-Lavin, Esteban Arias Montevechio, Natalia Julio, Alejandra Stehr
Summary: The study suggests that the Nexus framework is suitable for addressing water resource pressure challenges between agriculture and urban sectors, which are often overlooked in existing literature. The results show that in simulated scenarios, the urban sector will benefit more compared to the agricultural sector.
Article
Environmental Sciences
Alejandra Zurita, Mauricio Aguayo, Pedro Arriagada, Ricardo Figueroa, Maria Elisa Diaz, Alejandra Stehr
Summary: Most water bodies are currently facing pollution from industrial and domestic sectors. The Biobio river is under various anthropogenic pressures, including industrial water supply, drinking water, hydroelectric power generation, agriculture, and industrial and urban waste. A water quality model was used to determine the Biological Oxygen Demand Loading Capacity in a basin with limited water quality data under strong anthropogenic pressures, showing a high carrying capacity in the studied section of the river.
Article
Engineering, Civil
Jeffrey P. Walters, Hernan Alcayaga, Carolina Busco, Tamara Araya
Summary: This study presents a process to inform IWRM strategies for multiorganization hydroelectric projects using the MACTOR method, applied to the Alto Maipo Hydroelectric Project in Chile. Findings reveal environmental protection and water provision as core objectives, and highlight a power struggle between state and local organizations. Recommendations focus on improving communication and collaboration between organizations, as well as advocating for the local community and government organizations.
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
(2021)
Article
Geography, Physical
Hernan Alcayaga, Marco Soto-Alvarez, Jonathan B. Laronne, Diego Caamano, Luca Mao, Roberto Urrutia
Summary: This study investigates the hydrological processes and historical sediment transport in the Atacama desert. The occurrence of flash floods was evaluated by analyzing water and sediment characteristics in a small ephemeral playa. The research reveals a high spatial variability in rainfall events and suggests that sediment availability and basin connectivity play important roles in hydro-sedimentary processes.
Article
Environmental Sciences
Marcelo Portuguez-Maurtua, Jose Luis Arumi, Octavio Lagos, Alejandra Stehr, Nestor Montalvo Arquinigo
Summary: This study assesses different methods of filling gaps in daily precipitation data and finds that machine learning models, particularly the optimized ones, provide the best estimation accuracy and approximation to the actual data.
Article
Environmental Sciences
Diego Bello, Hernan Alcayaga, Diego Caamano, Alonso Pizarro
Summary: Although rare, dam breach occurrences can cause significant damage to life and property. This study evaluates the influence of statistical configuration on predicting the maximum discharge resulting from dam breaches. The analysis shows that certain breach parameters have a major impact on the rupture's maximum discharge and there can be significant variations in the estimated flood risk based on the statistical definition of these parameters.
Review
Engineering, Civil
Francisco Balocchi, Mauricio Galleguillos, Diego Rivera, Alejandra Stehr, Jose Luis Arumi, Roberto Pizarro, Pablo Garcia-Chevesich, Andres Iroume, Juan J. Armesto, Pedro Herve-Fernandez, Carlos Oyarzun, Pilar Barria, Christian Little, Gabriel Mancilla, Santiago Yepez, Rolando Rodriguez, Don A. White, Richard P. Silberstein, Daniel G. Neary, Pablo Ramirez de Arellano
Summary: This paper reviews the hydrological processes in Chilean temperate forests, covering a range of natural and planted forests in diverse environmental settings. It highlights the importance of forested catchments for local communities, freshwater ecosystems, and downstream economic activities. The review identifies knowledge gaps and proposes future research directions to improve understanding of forest hydrology in Chile.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Francisca Barraza-Moraga, Hernan Alcayaga, Alonso Pizarro, Jorge Felez-Bernal, Roberto Urrutia
Summary: Inland water is crucial for conservation and as a source of drinking water. Using satellite images to monitor lake observation can provide a convenient and effective tool. This study tested the suitability of the Sentinel-2 MSI sensor for estimating Chl-a in a lake in south-central Chile and proposed an empirical approach based on multiple linear regressions. The spatial distribution of Chl-a concentrations was obtained using the proposed equations.
Article
Green & Sustainable Science & Technology
Camila Orellana Pereira, Rossana Escanilla-Minchel, Alejandra Cortes Gonzalez, Hernan Alcayaga, Mauricio Aguayo, Miguel Aguayo Arias, Alejandro N. Flores
Summary: This study assessed the effects of land use and land cover change on hydrological processes in a coastal basin in South-Central Chile. By simulating future scenarios, the researchers found that the impacts on the water balance components were not significant, except for soil water transfer and groundwater flow. The study highlights the importance of evaluating the effects of land use change on coastal basin hydrology and the interconnection between land use governance and water resources.
Article
Environmental Sciences
Matias Garcia, Hernan Alcayaga, Alonso Pizarro
Summary: A novel method that utilizes optical data is proposed for automated segmentation of water extent. The method features a simple physically based model that only uses RGB data, achieving accurate results in estimating water surface area and perimeter. It does not require any data training process and requires minimal computational resources. An open-source software package with command-line codes and a user-friendly graphical interface is released for various applications, research, and educational purposes.
Article
Environmental Sciences
Marcelo Portuguez-Maurtua, Jose Luis Arumi, Alejandra Stehr, Octavio Lagos, Eduardo Chavarri-Velarde, Daniela Rivera-Ruiz
Summary: A prioritization of hydrographic units in the Cañete River basin was conducted using morphometric analysis and a weighted sum analysis. The results showed that 26.08% of the total area is at a very high flash flood risk, 38.46% is at a high flash flood risk, and 35.45% is at a moderate flash flood risk.
Article
Environmental Sciences
Robert Clasing, Enrique Munoz, Jose Luis Arumi, Diego Caamano, Hernan Alcayaga, Yelena Medina
Summary: The use of UAVs in creating digital terrain models (DTMs) provides a cost-effective way to estimate floods in rivers. However, limitations exist in UAV's ability to accurately estimate water surface elevations and submerged terrain. By developing hydraulic models based on UAV-derived topographic information, practical and efficient flood estimations can be made. This approach has important implications for flood studies, offering larger coverage areas and cost-effective estimations using affordable UAVs.
Review
Environmental Sciences
Jose F. Munoz, Francisco Suarez, Hernan Alcayaga, Virginia McRostie, Bonifacio Fernandez
Summary: The Silala River basin, located in a remote area in the Andes Mountain range, has limited data on hydrological and hydrogeological functions. Due to a dispute between Chile and Bolivia, scientific studies were conducted to gather knowledge. The article reviews the basin's topography, water use, and hydrological processes, and presents an enhanced monitoring program. New measurement stations in both countries improved understanding of the system and contributed to hydraulic, hydrological, and hydrogeological models.
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2023)
