Article
Engineering, Civil
Conrad Wasko, Yawen Shao, Elisabeth Vogel, Louise Wilson, Q. J. Wang, Andrew Frost, Chantal Donnelly
Summary: Changes in the hydrologic cycle have significant impacts on agricultural productivity, water resources availability, and environmental management in Australia. While northern parts of Australia have experienced increasing rainfall and water availability, the southwest and southeast coast have seen declines in rainfall, affecting runoff and soil moisture. Standardised runoff index indicates increasing streamflow droughts across large parts of Australia.
JOURNAL OF HYDROLOGY
(2021)
Article
Engineering, Civil
Thien Huy Truong Nguyen, Bree Bennett, Michael Leonard
Summary: Stochastic rainfall models are important for evaluating hydrological risks, but there are discrepancies between rainfall metrics and flow metrics. The performance of different models varies depending on the strictness of the flow-based comparison and the region analyzed.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Felipe Quintero, Nicolas Velasquez
Summary: This paper introduces the HLM-Tetis model structure and its improvements over the previous HLM model structure. By adding modules to simulate snow processes, improving flexibility in simulating infiltration and percolation, and enhancing flexibility in deriving total runoff, the model has been applied to flood events in five basins in Iowa where previous model structures had limitations.
Article
Environmental Sciences
Jen Feng Khor, Steven Lim, Lloyd Ling
Summary: This study presents a revised and calibrated Soil Conservation Service (SCS) curve number (CN) rainfall runoff model for predicting runoff in Malaysia. The traditional SCS-CN model is found to be unreliable, and the revised model exhibits improved accuracy. The study highlights the importance of considering land use changes in flood prevention planning.
Article
Green & Sustainable Science & Technology
Abdulnoor A. J. Ghanim, Salmia Beddu, Teh Sabariah Binti Abd Manan, Saleh H. Al Yami, Muhammad Irfan, Salim Nasar Faraj Mursal, Nur Liyana Mohd Kamal, Daud Mohamad, Affiani Machmudah, Saba Yavari, Wan Hanna Melini Wan Mohtar, Amirrudin Ahmad, Nadiah Wan Rasdi, Taimur Khan
Summary: This study develops a simple conceptual model to simulate hydrological processes in arid environments and successfully predicts peak flow rates. The model, which requires inputs such as hourly rainfall, potential evapotranspiration, and streamflow records, is calibrated and analyzed using data from an arid catchment in Jordan. The model shows good fit with both observed and simulated data, indicating its potential for peak discharge prediction.
Article
Environmental Sciences
Ying Zhao, Mark A. Nearing, David Phillip Guertin
Summary: This study used both single-site and multi-site rainfall generators to simulate a watershed and evaluated the simulation results. The multi-site generator performed better than the single-site generator in terms of mean summer flow and different return period flows. This suggests that the spatial variability of rainfall plays an important role in hydrologic response in small to medium-sized watersheds.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2022)
Article
Environmental Sciences
C. A. Ross, N. J. Casson, M. Tenuwara
Summary: Understanding hydrological dynamics in boreal Shield catchments is essential for predicting changes in stream runoff and chemistry in response to climate change. This study used long-term data to assess event-scale hydrologic response dynamics and stream loads of nitrate and chloride, revealing significant variability in both hydrologic response and loads between seasons.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2021)
Article
Environmental Sciences
Yizhuo Wen, Aili Yang, Xiangming Kong, Yueyu Su
Summary: A Bayesian-model-averaging Copula (BMAC) approach is proposed for correlation analysis of monthly rainfall and runoff in Xiangxi River watershed, China. The method improves the representation of marginal distribution of hydrological variables and calibrates the joint distributions of rainfall and runoff using Gumbel Copula.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Engineering, Civil
Aminul Haque, Genevieve Ali, Pascal Badiou
Summary: The study found that the alteration status of wetlands, climate, and antecedent storage conditions have significant impacts on the hydrologic response of wetlands to individual rainfall-runoff events, potentially overriding the influence of spatial characteristics. Antecedent storage appears to be the driving factor for wetland-stream interactions, and the lack of persistent correlations between wetland spatial characteristics and response metrics suggests nonstationary wetland hydrological behaviors.
JOURNAL OF HYDROLOGY
(2022)
Article
Meteorology & Atmospheric Sciences
Michael J. F. Vieira, Tricia A. Stadnyk
Summary: This study utilizes global climate models to assess future hydrologic droughts on a global scale. The findings show that a significant portion of the analyzed regions are at risk of unprecedented drought severity and duration, while northern latitudes may experience increased runoff and less severe droughts. However, predictions for other regions are either uncertain or unreliable due to conflicting signal-to-noise ratios and ensemble agreement.
NPJ CLIMATE AND ATMOSPHERIC SCIENCE
(2023)
Article
Environmental Sciences
Yesen Liu, Yaohuan Huang, Yuanyuan Liu, Kuang Li, Min Li
Summary: The study shows that the direction of rainfall movement has a significant impact on peak runoff, up to 20%, but can decrease to less than 5% under heavy rainfall conditions. Additionally, the impact of rainfall movement direction is symmetrical and related to the direction of the river, affecting peak runoff in the downstream urban areas.
Article
Engineering, Civil
Salvatore Grimaldi, Elena Volpi, Andreas Langousis, Simon Michael Papalexiou, Davide Luciano De Luca, Rodolfo Piscopia, Sofia D. Nerantzaki, Georgia Papacharalampous, Andrea Petroselli
Summary: Continuous hydrologic modelling is an important approach in modern hydrology that improves the rainfall-runoff transformation and provides effective hydrological output information for risk assessment. However, the choice of the most appropriate rainfall simulation model for risk analysis has not been sufficiently investigated. This paper tests eight rainfall models and evaluates their performances when used as input for a simplified continuous rainfall-runoff model, providing insights for improving and tailoring the models for data-scarce hydrological risk applications.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Civil
Gerhard Schoener, Mark C. Stone, Charles Thomas
Summary: In dryland watersheds, infiltration excess overland flow is the dominant mechanism for runoff generation. Rainfall-runoff models partition precipitation into loss and excess precipitation components, with many using simple loss models due to the complexity and uncertainty of more sophisticated models at larger spatial scales.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Chaowei Xu, Ziyan Han, Hao Fu
Summary: In this study, an integrated approach based on remote sensing and hydrologic-hydrodynamic modeling was developed to simulate the rainfall-runoff process in a farm dam-dominated basin. The developed model showed improved performance in simulating flood flow and peak appearance time compared to classical hydrological models.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Engineering, Civil
Peng Bai, Xiaomang Liu, Jiaxin Xie
Summary: This study compares the robustness of LSTM network and two conceptual hydrologic models in runoff prediction under changing climatic conditions. The study finds that LSTM network shows good robustness in changing climatic conditions, while the two hydrologic models perform better in wet periods. The length of the calibration period is an important factor affecting the relative performance of the models, with LSTM network showing enhanced performance with longer calibration periods.
JOURNAL OF HYDROLOGY
(2021)
Article
Water Resources
Dimaghi Schwamback, Gabriela C. Gesualdo, Jullian S. Sone, Alex Naoki A. Kobayashi, Luis Eduardo Bertotto, Maria Vitoria S. Garcia, Andre Almagro, Paulo Tarso S. Oliveira
Summary: The Brazilian water resources management uses topographically delineated catchments as territorial units for policy implementation, but previous studies have shown that these catchments are not hydrologically isolated and often neglect groundwater boundaries. Therefore, studying effective catchment areas is important for understanding inter-catchment groundwater flow in Brazil.
HYDROLOGICAL PROCESSES
(2022)
Article
Environmental Sciences
Camila M. C. Leite, Jaqueline V. Coutinho, Alice K. M. Morita, Natalia S. Pelinson, Mitsuyo Saito, Jacinta Enzweiler, Edson Wendland
Summary: The use of environmental tracers is important for managing water resources and reducing the impact of urbanization. This study evaluated sources of contamination in the Guarani Aquifer System in Brazil using geochemical data and two environmental tracers. The results showed that nitrate contamination originated from septic waste and the determination of Gadolinium anomalies verified recent human inputs in groundwater.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Green & Sustainable Science & Technology
Maria E. A. Ferreira, Diego A. Zanoni, Glauber A. Carvalho, Jamil A. A. Anache, Paulo Tarso S. Oliveira, Teodorico Alves Sobrinho
Summary: The silting process in urban reservoirs is a global issue, especially in developing countries like Brazil. This study used sediment source fingerprinting (SSF) and land use analysis to identify the main sources of sediment and control the silting process in urban reservoirs located in Campo Grande, Midwestern Brazil. The findings show that the reduction in reservoir volume is proportional to the increase in impermeable areas of the basin, and that sediments deposited in the reservoir come from bare soil, banks, and bed in specific proportions.
Article
Multidisciplinary Sciences
Andre Simoes Ballarin, Jullian Souza Sone, Gabriela Chiquito Gesualdo, Dimaghi Schwamback, Alan Reis, Andre Almagro, Edson Cezar Wendland
Summary: In this study, we provide a dataset based on 19 bias-corrected CMIP6 climate models projections for the Brazilian territory under the SSP2-4.5 and SSP5-8.5 scenarios. The dataset includes biased-corrected daily time-series of precipitation, temperature, solar net radiation, wind speed, and relative humidity. It covers historical and future simulations at a spatial resolution of 0.25 degrees x 0.25 degrees, and area-averaged projections for 735 catchments. This dataset facilitates high-quality research on climate change impacts in Brazil.
Review
Environmental Sciences
Ingrid Mamedes, Angelica Guerra, Dulce B. B. Rodrigues, Leticia Couto Garcia, Raquel de Faria Godoi, Paulo Tarso S. Oliveira
Summary: Based on the principles of user pays and provider gets, Payment for Environmental Services (PES) provides economic incentives or compensation to land users who engage in activities promoting ecosystem services. Despite the rapid growth of PES initiatives in Brazil, there is a lack of comprehensive, up-to-date studies on these programs in the country. Through interviews and literature reviews, this study investigates the overview of PES in Brazil and identifies 80 implemented programs, with the majority concentrated in the Atlantic Forest and Savanna biomes in Southeastern Brazil. The main focus of these programs is on improving water quality and quantity, with proposed practices including reforestation, protection of native vegetation, and soil and water conservation. While Brazil's PES experiences have shown positive impacts, major limitations include lack of transparency and monitoring, as well as inequitable spatial and financial distribution.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2023)
Article
Computer Science, Information Systems
Andrew Fullhart, Guillermo E. Ponce-Campos, Menberu B. Meles, Ryan P. McGehee, Gerardo Armendariz, Paulo Tarso S. Oliveira, Cristiano Das Neves Almeida, Jose C. de Araujo, Werner Nel, David C. Goodrich
Summary: CLIGEN is a stochastic weather generator that creates statistically representative timeseries of weather variables. In this study, global climate datasets were used to estimate climate statistics and obtain complete CLIGEN input parameters for Africa and South America. Precipitation parameters were estimated using ground-based observations and regression models, and cross-validation was conducted to quantify errors.
Article
Chemistry, Analytical
Dimaghi Schwamback, Magnus Persson, Ronny Berndtsson, Luis Eduardo Bertotto, Alex Naoki Asato Kobayashi, Edson Cezar Wendland
Summary: Automated soil moisture systems using low-cost sensors are commonly used in precision agriculture. This study compares the trade-off between cost and accuracy of low-cost and commercial soil moisture sensors. The results indicate that low-cost sensors may have reduced accuracy but can provide more detailed spatial and temporal observations at a lower cost, making them suitable for short-term and limited-budget projects.
Article
Plant Sciences
Drielli de Carvalho Vergne, Livia Malacarne Pinheiro Rosalem, Edson Cezar Wendland, Jamil Alexandre Ayach Anache, Marcia Cristina Martins da Silva, Raquel Stucchi Boschi, Dalva Maria da Silva Matos
Summary: The aim of this study is to experimentally determine the daily evapotranspiration (ET) of the invasive species H. coronarium and compare it with a group of four native species. Three different treatments were carried out in a greenhouse, indicating that different species use water differently. The maximum accumulated daily ET occurred in the mixture treatment, while the treatment with the invasive plant had the lowest value. H. coronarium can reduce evapotranspiration in invaded areas and increase it when immersed in the riparian forest.
Article
Environmental Sciences
Joao M. Villela, Jamil A. A. Anache, Alex M. Watanabe, Dennis C. Flanagan, Edson C. Wendland, Silvio Crestana
Summary: This study evaluated the performance of a water erosion tracer based on rare earth elements, and found that it could accurately estimate erosion/deposition rates, providing valuable insights for soil management and erosion model validation.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2023)
Article
Environmental Sciences
Bruno K. Marchezepe, Andre Almagro, Andre S. Ballarin, Paulo Tarso S. Oliveira
Summary: We reintroduce a simple approach to predict streamflow in Brazilian catchments by analyzing data from 716 catchments. The results show the feasibility of this method on both interannual and monthly scales, providing a reliable alternative to more complex methods for predicting runoff in ungauged basins.
INTERNATIONAL SOIL AND WATER CONSERVATION RESEARCH
(2023)
Article
Engineering, Civil
Marcus Nobrega Gomes Jr, Cesar Ambrogi Ferreira do Lago, Luis Miguel Castillo Rapalo, Paulo Tarso S. Oliveira, Marcio Hofheinz Giacomoni, Eduardo Mario Mendiondo
Summary: Floods, exacerbated by changes in land-use and climate, are one of the deadliest natural hazards. This paper evaluates the applicability of a distributed hydrodynamic model coupled with a water quality model in simulating the transport and fate of pollutants in different catchments. The study highlights the challenges and opportunities of applying the model in poorly-gauged catchments with limited data availability.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Andre S. Ballarin, Jose Gescilam Sousa Mota Uchoa, Matheus S. S. dos Santos, Andre Almagro, Ianca P. P. Miranda, Pedro Gustavo C. da Silva, Greicelene J. J. da Silva, Marcus N. N. Gomes, Edson Wendland, Paulo Tarso S. Oliveira
Summary: We introduce a new framework for assessing water availability in 708 Brazilian catchments, considering CO2 concentrations, climate change simulations, and water demand projections. Our study reveals that 81% of the catchments will experience a reduction in water security by 2100, with 37% facing decreased future water availability and 63% impacted by increased human water use. This highlights the importance of considering the human aspect in water security assessment.
WATER RESOURCES RESEARCH
(2023)
Article
Agricultural Engineering
Pietro M. S. Macedo, Nivaldo Schultz, Paulo T. S. Oliveira, Marinaldo F. Pinto, Bruno A. A. F. Conforto, Daniel F. de Carvalho
Summary: The aim of this study was to develop an automatic runoff collector prototype that can quantify runoff volume and soil loss in real-time using a rainfall simulator. The prototype used sensors selected based on uncertainty calculations. The data collected by the sensors were compared to manual measurements, showing potential for accurately evaluating runoff and erosion processes.
REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
(2023)
Article
Water Resources
Giovanni Chaves Penner, Rubens Takeji Aoki Araujo Martins, Salim Rodrigues, Edson Wendland
Summary: For sustainable groundwater management, the rate of groundwater recharge and specific yield are crucial elements, but their estimation remains a challenge. This research combines the water-table fluctuation method (WTF) with an aquifer test to estimate and quantify their uncertainty. The approach was successfully applied in Brazil, with an estimated recharge of 1078.9 mm and an associated uncertainty of 129.5 mm in 2a. By reducing predictive uncertainty, this approach can contribute to improved groundwater management.
RBRH-REVISTA BRASILEIRA DE RECURSOS HIDRICOS
(2023)
