Article
Water Resources
Xiao Zhang, Hong Yang, Wanshun Zhang, Fabrizio Fenicia, Hong Peng, Gaohong Xu
Summary: This study analyzes the hydrological impact of climate variability, land use change, and hydraulic constructions on the streamflow in the middle and lower Hanjiang River basin in China. The results show that watershed inlet is the major factor altering the streamflow regime at the watershed outlet, climate variability is the main driver of net changes in natural hydrological regime, and the increase in reservoirs and their operation significantly alter the flow pattern.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Engineering, Civil
Kristen M. Whitney, Enrique R. Vivoni, Theodore J. Bohn, Giuseppe Mascaro, Zhaocheng Wang, Mu Xiao, Mohammed I. Mahmoud, Chuck Cullom, Dave D. White
Summary: Studies in the Colorado River Basin have found that warming has caused declines in streamflow since 2000, especially in the Upper Basin. However, it is uncertain if increased precipitation variability could outweigh the effects of future warming. To address this, a model framework was used to project streamflow across the entire basin, showing significant declines in streamflow due to warming and decreased precipitation. The spatial analysis provided actionable information for water management in the basin.
JOURNAL OF HYDROLOGY
(2023)
Article
Multidisciplinary Sciences
Hoang Tran, Jun Zhang, Mary Michael O'Neill, Anna Ryken, Laura E. Condon, Reed M. Maxwell
Summary: This article presents a hydrological reconstruction of the Upper Colorado River Basin using hourly temporal resolution and 1-km spatial resolution from October 1982 to September 2019. The validated dataset includes various hydrologic variables such as streamflow, water table depth, snow water equivalent (SWE), and evapotranspiration (ET). These datasets provide a long-term simulation of natural flow for one of the most over-allocated basins in the world.
Article
Water Resources
Sedighe Nikkhoo Amiri, Mojtaba Khoshravesh, Reza Norooz Valashedi
Summary: Climate change is a significant factor affecting water supply in semi-arid and arid areas such as Iran. This research investigates the impact of climate change and upstream land use on the Tajan River in northern Iran. The study shows that peak streamflow will increase by 4% and 5.7%, while average annual discharges will decrease by 16% and 16.5% from 2016 to 2066 under different climate scenarios. Furthermore, different land use change scenarios lead to an increase in average annual streamflow by 8.5-15.8%. It is concluded that downstream water users should implement strategies to cope with the changing climate and water scarcity.
APPLIED WATER SCIENCE
(2023)
Article
Multidisciplinary Sciences
Wenxian Guo, Xuyang Jiao, Haotong Zhou, Yongwei Zhu, Hongxiang Wang
Summary: This study quantitatively assessed the hydrological variability of the Jialing River and the contribution of climate alteration and human activities to hydrological alterations using the IHA-RVA method and Budyko hypothesis formulations. The results showed a decreasing trend in average annual runoff and precipitation, as well as an increasing trend in potential evapotranspiration. The study also revealed a low to moderate degree of alteration in various hydrological indicators, with precipitation, potential evapotranspiration, and human activities contributing 61%, -16%, and 55% to the runoff alteration, respectively.
SCIENTIFIC REPORTS
(2022)
Article
Meteorology & Atmospheric Sciences
Jeanne Colin, Bertrand Decharme, Julien Cattiaux, David Saint-Martina
Summary: Groundwater and climate have a two-way interaction. Global climate models rarely simulate groundwater flows, and the feedbacks between global-scale groundwater and climate have been largely ignored. This study shows that incorporating unconfined aquifers in a global climate model can regionally affect temperature and precipitation changes. Groundwater has a cooling and wetting effect in certain regions, with a stronger impact under warmer climate conditions.
JOURNAL OF CLIMATE
(2023)
Article
Meteorology & Atmospheric Sciences
Laura E. Queen, Sam Dean, Daithi Stone, Roddy Henderson, James Renwick
Summary: Anthropogenic climate change is impacting rivers globally, jeopardizing water availability and changing natural hazard risks. Analyzing regional streamflow trends can provide valuable information for developing policies to mitigate and adapt to the associated negative impacts on society and the environment. This study presents a comprehensive dataset of long-term, near-natural streamflow records in New Zealand (NZ) and the first nationwide analysis of observed spatio-temporal streamflow trends. By aggregating data within homogeneous hydrologic regions, significant regional trends are revealed. The findings demonstrate the influence of decadal variability in specific seasons and regions, with both increasing and decreasing streamflow trends observed across NZ. Correlations between streamflow and climate indices highlight the primary drivers of hydrologic behavior and suggest possible impacts of climate change on NZ hydrology.
JOURNAL OF HYDROMETEOROLOGY
(2023)
Article
Engineering, Civil
Antonia Hadjimichael, Jim Yoon, Patrick Reed, Nathalie Voisin, Wenwei Xu
Summary: Efforts in developing and simulating water resources models have grown rapidly in recent years to aid in evaluating and planning for water scarcity and allocation. This study examines two representative models from different communities to assess their consistency in evaluating water scarcity vulnerabilities. Results show that the regional-scale model underestimates the variability in vulnerabilities at a smaller scale, while the basin-scale water systems model suggests a larger variance of scarcity due to its more detailed accounting of local water allocation infrastructure and institutional processes. This comparison highlights the limitations of large-scale studies and the role of basin-scale models in informing water allocation and shortage strategies when used in conjunction with larger-scale hydrological modeling studies.
JOURNAL OF WATER RESOURCES PLANNING AND MANAGEMENT
(2023)
Article
Geosciences, Multidisciplinary
You Lu, Fuqiang Tian, Liying Guo, Iolanda Borzi, Rupesh Patil, Jing Wei, Dengfeng Liu, Yongping Wei, David J. Yu, Murugesu Sivapalan
Summary: Cooperation dynamics between upstream and downstream countries in the Lancang-Mekong River basin are influenced by hydrological variability and reservoir operations, with indirect political benefits of upstream countries playing a significant role in enhancing cooperation.
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2021)
Article
Environmental Sciences
Zhenyu Zhang, Yajing Liao, Jinliang Huang
Summary: This study proposes a framework to quantify seasonal dissolved inorganic nitrogen (DIN) export coefficients for different land-use types in a catchment in Southeast China. The results show that farmland and forest have the highest and lowest export coefficients, respectively, and reveal the complex role of built-up areas in nitrogen export.
Article
Geosciences, Multidisciplinary
Olivia L. Miller, Matthew P. Miller, Patrick C. Longley, Jay R. Alder, Lindsay A. Bearup, Tom Pruitt, Daniel K. Jones, Annie L. Putman, Christine A. Rumsey, Tim McKinney
Summary: This study provides estimates of projected baseflow changes in the Upper Colorado River Basin under different climatic conditions, showing potential declines in total baseflow supplied to the Lower Colorado River Basin, with a possible increase under warm/wet conditions. Additionally, the results highlight the impacts of climate-driven changes in high-elevation hydrology on basinwide water availability.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Engineering, Civil
Andre Almagro, Paulo Tarso Sanches Oliveira, Luca Brocca
Summary: Satellite rainfall products show better performance than the ERAS reanalysis product in estimating daily precipitation and daily river discharge in most Brazilian biomes. Hydrologic modeling using these satellite products yielded low biases and over 80% of catchments with KGE > 0.5 in calibration, with SM2RAIN-ASCAT and GPM+SM2RAIN performing well in estimating hydrologic signatures. This indicates the significant added value of using these satellite rainfall products in tropical catchments for high-quality continuous water resources monitoring in data-scarce regions.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Alia L. Khan, Eric R. Sokol, Diane M. McKnight, James F. Saunders, Amanda K. Hohner, R. Scott Summers
Summary: Previous studies have shown that algal-derived dissolved organic matter (DOM) has a strong influence on the formation of disinfection byproducts (DBPs) during the treatment of drinking water. Factors such as nitrogen and phosphorus loading, phytoplankton abundance, and nutrient concentrations were found to drive the concentrations and quality of DOM, impacting the formation of DBPs. The high TOC concentrations associated with phytoplankton growth had the potential to lead to the production of regulated DBPs.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Environmental Sciences
Irena Nimac, Ivana Herceg-Bulic, Maja Zuvela-Aloise
Summary: Urban climate is impacted by weather, global climate change, and urban development. This study reveals that climate change has a dominant effect on the heat load of Zagreb, while land-use/land-cover changes have a weaker impact but significant spatial variability on heat load.
Article
Environmental Sciences
Christine A. Rumsey, Olivia Miller, Robert M. Hirsch, Thomas M. Marston, David D. Susong
Summary: The study quantified long-term trends in salinity across the Upper Colorado River Basin and found that there have been large, widespread, and sustained downward trends in dissolved-solids concentrations and loads over the past 50-90 years, with the steepest rates of decline occurring from 1980 to 2000. The results also indicate that significant decreases in salinity occurred as early as the 1940s at some streams, suggesting that changes in land cover, land use, and/or climate have substantial effects on salinity transport in the UCRB.
WATER RESOURCES RESEARCH
(2021)
Article
Ecology
Douglas A. Burns, Matthew P. Miller, Brian A. Pellerin, Paul D. Capel
FRESHWATER SCIENCE
(2016)
Article
Geosciences, Multidisciplinary
Jennifer L. Georgek, D. Kip Solomon, Victor M. Heilweil, Matthew P. Miller
HYDROGEOLOGY JOURNAL
(2018)
Article
Environmental Sciences
Matthew P. Miller, Anthony J. Tesoriero, Krista Hood, Silvia Terziotti, David M. Wolocks
WATER RESOURCES RESEARCH
(2017)
Article
Environmental Sciences
Anthony J. Tesoriero, Jo Ann Gronberg, Paul F. Juckem, Matthew P. Miller, Brian P. Austin
WATER RESOURCES RESEARCH
(2017)
Article
Environmental Sciences
Fred D. Tillman, David W. Anning, Julian A. Heilman, Susan G. Buto, Matthew P. Miller
Article
Environmental Sciences
B. T. Neilson, H. Tennant, T. L. Stout, M. P. Miller, R. S. Gabor, Y. Jameel, M. Millington, A. Gelderloos, G. J. Bowen, P. D. Brooks
WATER RESOURCES RESEARCH
(2018)
Article
Environmental Sciences
Travis W. Nauman, Christopher P. Ely, Matthew P. Miller, Michael C. Duniway
WATER RESOURCES RESEARCH
(2019)
Review
Environmental Sciences
Douglas A. Burns, Brian A. Pellerin, Matthew P. Miller, Paul D. Capel, Anthony J. Tesoriero, Jonathan M. Duncan
WILEY INTERDISCIPLINARY REVIEWS-WATER
(2019)
Article
Engineering, Environmental
Matthew P. Miller, Paul D. Capel, Ana Maria Garcia, Scott W. Ator
JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION
(2020)
Article
Engineering, Civil
Christine A. Rumsey, Matthew P. Miller, Graham A. Sexstone
JOURNAL OF HYDROLOGY
(2020)
Article
Environmental Sciences
Matthew P. Miller, Marcelo L. de Souza, Richard B. Alexander, Lillian G. Sanisaca, Alexandre de Amorim Teixeira, Alison P. Appling
Article
Water Resources
Hyrum Tennant, Bethany T. Neilson, Matthew P. Miller, Tianfang Xu
Summary: Streams in semi-arid urban and agricultural environments are often heavily diverted for anthropogenic purposes, but also receive substantial inflows from a variety of ungaged sources, helping sustain flow during dry periods. Methods are needed to understand source origination and quantify gains and losses over impacted reaches.
HYDROLOGICAL PROCESSES
(2021)
Article
Geosciences, Multidisciplinary
Olivia L. Miller, Matthew P. Miller, Patrick C. Longley, Jay R. Alder, Lindsay A. Bearup, Tom Pruitt, Daniel K. Jones, Annie L. Putman, Christine A. Rumsey, Tim McKinney
Summary: This study provides estimates of projected baseflow changes in the Upper Colorado River Basin under different climatic conditions, showing potential declines in total baseflow supplied to the Lower Colorado River Basin, with a possible increase under warm/wet conditions. Additionally, the results highlight the impacts of climate-driven changes in high-elevation hydrology on basinwide water availability.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Review
Environmental Sciences
Fred D. Tillman, Natalie K. Day, Matthew P. Miller, Olivia L. Miller, Christine A. Rumsey, Daniel R. Wise, Patrick C. Longley, Morgan C. McDonnell
Summary: The Colorado River is a critical water resource in the southwestern United States, providing drinking water for 40 million people and irrigation water for 2.2 million hectares of land. Challenges in water availability due to extended drought and potential climate change in the Upper Colorado River Basin are highlighted. The manuscript reviews the current state of science for water availability components in the UCOL, emphasizing the importance of data, modeling, and trends.
Article
Ecology
Mark D. Munn, Christopher P. Konrad, Matthew P. Miller, Kristin Jaeger
Summary: Stream metabolism is influenced by multiple factors, with biomass being a dominant control on metabolism. Comparative analyses of streams should consider both spatial and temporal variations in stream metabolism to accurately assess differences in trophic status, biomass, and nutrient cycling. This study evaluated the effects of environmental factors on stream metabolism during a summer low-flow period at 17 stream sites in the United States and found that biomass, orthophosphate, and canopy cover were important factors influencing gross primary production.
FRESHWATER BIOLOGY
(2023)