Article
Engineering, Civil
J. Crawford, C. E. Hughes, S. D. Chambers
Summary: This study compares daily and weekly stable isotopic data of rainfall collected in Lucas Heights, Australia over a 9-year and 14-year period, respectively. The differences between local meteoric water lines (LMWLs) developed from daily, weekly, or monthly data were small. However, when a precipitation weighted least squares method was used, the differences between daily and weekly derived LMWLs were lower. The isotopic composition of precipitation is influenced by environmental conditions, synoptic weather systems, and large-scale climate drivers.
JOURNAL OF HYDROLOGY
(2023)
Article
Engineering, Civil
Huawu Wu, Hongxiang Fan, Ruiyu Lei, Chijun Sun, Shengjie Wang, Haohao Wu, Congsheng Fu
Summary: This study collected daily precipitation isotopes in the Yangtze River Basin to investigate the controls on precipitation isotopic variability in the East Asian monsoon region. The results showed that convective behaviors and moisture sources play important roles in determining precipitation stable isotopes. The study highlighted the significant contribution of water vapor from the Indian Ocean and the Bay of Bengal to the variability of precipitation isotopes.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Yasheng Shi, Zanfang Jin, Aijing Wu, Guangyao Li, Feili Li
Summary: The analysis of hydrogen and oxygen stable isotopes in precipitation in Ningbo from 2018 to 2020 showed varying values influenced by the subtropical monsoon climate in East China. The isotopic values were affected by different water vapor sources in summer and winter, with significant precipitation amount effects observed in Ningbo, particularly in summer. The monsoon climate played a major role in causing the observed temperature and precipitation effects.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Multidisciplinary Sciences
Callum Munday, Nicholas Savage, Richard G. Jones, Richard Washington
Summary: The aridification of East Africa during the past 8 million years is often considered as a driving force behind changes in vegetation and the evolution of new animal lineages, including hominins. This study uses numerical model experiments to show that the valleys in the East African Rift System play a central role in creating dry conditions in East Africa. These valleys channel water vapor towards Central Africa, resulting in increased rainfall in the Congo Basin rainforest and drier conditions in East Africa. The findings suggest that the tectonic development of Africa has shaped rainfall distribution and influenced the evolution of African plant and animal lineages.
Article
Environmental Sciences
Jun-Sik Woo, Man-sik Choi, Yun-ho Song
Summary: The study investigated the accumulation, pathways, and sources of anthropogenic lead (Pb) in Ulleung Basin sediments. The results showed that leached Pb concentrations and isotope ratios were stable before 1930 but increased rapidly afterwards. The primary source of anthropogenic Pb was found to be atmospheric deposition of leaded gasoline and coals, but dumping materials added significant amounts of Pb to slope sediments after the 1990s.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Justin T. Maxwell, Joshua C. Bregy, Scott M. Robeson, Paul A. Knapp, Peter T. Soule, Valerie Trouet
Summary: The study found that tropical cyclone precipitation extremes have increased in North America's coastal regions over the past few centuries, especially in the last 60 years, indicating a consistent trend with slower movement speeds of tropical cyclones under anthropogenic climate change.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Geochemistry & Geophysics
Charles M. Balagizi, Marcellin M. Kasereka, Albert M. Kyambikwa, Emilio Cuoco, Ilenia Arienzo, Marcello Liotta
Summary: The delta O-18 and delta H-2 values of rivers and springs were investigated to characterize groundwater recharge sources around Nyiragongo and Nyamulagira volcanoes, revealing the influence of catchment morphology and tectonic discontinuity on surface runoff and subsurface flow.
Article
Environmental Sciences
Xin Lan, Wenxiong Jia, Guofeng Zhu, Yue Zhang, Zhijie Yu, Huifang Luo
Summary: Stable isotopes of precipitation play a crucial role in understanding hydrological and climatic processes in arid inland river basins. This study collected precipitation samples in the Shiyang River Basin from June 2018 to May 2020 to investigate the spatial and temporal variations of stable isotopes and their relationships with meteorological factors. The results indicate that stable isotopes exhibit seasonal variations, with higher values of delta 2H and delta 18O in summer and autumn, and lower values in winter and spring. The slopes and intercepts of the local meteoric water lines increase with elevation. Additionally, delta 18O shows a positive correlation with temperature and a negative correlation with precipitation in summer.
Article
Meteorology & Atmospheric Sciences
Acacia Pepler, Andrew Dowdy
Summary: East coast lows (ECLs) are low pressure systems that occur near the east coast of Australia, with a small proportion responsible for a significant amount of rainfall days above 50 mm. The majority of heavy rainfall days on the east coast occur when a low at 500 hPa over inland southeast Australia coincides with a surface low located over the east coast. Understanding the relationship between ECLs and heavy rainfall will help anticipate the impacts of future climate change.
JOURNAL OF SOUTHERN HEMISPHERE EARTH SYSTEMS SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Ita Wulandari, Samuel Katz, Roger Patrick Kelly, Rebecca S. Robinson, Rainer Lohmann
Summary: The occurrence, trends, and sources of soot black carbon (BC) in coastal sediments were investigated using sediment cores from the US East Coast and Florida Straits. The study found that BC fluxes were similar at both sites and accounted for a significant percentage of total organic carbon (OC). Carbon stable isotope values indicated marine origin for OC and terrestrial origin for BC, with different sources observed between North Carolina and Florida Strait based on radiocarbon values and polycyclic aromatic hydrocarbon ratios.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Mojtaba Heydarizad, Luis Gimeno, Rogert Sori, Foad Minaei, Javad Eskandari Mayvan
Summary: This study analyzed precipitation in the Middle East using stable isotope techniques and found that stable isotope content is influenced by geographical and climatological factors. Significant variations were observed in stable isotope values of precipitation across different climate zones, leading to the development of the Middle East meteoric water line with a lower slope compared to the global standard. The study concludes that stable isotope contents in precipitation exhibit significant temporal and spatial variations due to the notable climatic variations in the Middle East.
Article
Geochemistry & Geophysics
Yue Cai, Sara Mana, Stephen E. Cox, Catherine C. Beck, Craig Feibel, Jean Hanley, Tanzhuo Liu, Louise Bolge, Sidney Hemming, Steven L. Goldstein
Summary: There is a consensus that volcanism along the East African Rift System (EARS) is related to plume activities. The Turkana Basin has a unique lithospheric mantle which provides valuable insights into plume-related volcanism. Different time periods in the Turkana Basin exhibit distinct geochemical and isotopic signatures, suggesting variations in the structure and evolution of the plume.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Engineering, Civil
Cong Xie, Liangju Zhao, Christopher J. Eastoe, Ninglian Wang, Xiying Dong
Summary: Isotopes were used to study the moisture sources in precipitation, as well as the sources of surface water and groundwater in the Shule River Basin. The results showed that groundwater originates from high-altitude precipitation and meltwater from ice archives. The study also identified different types of water in mixing trends and revealed the potential impact of climate change on water shortage.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Hanyu Xiao, Mingjun Zhang, Yu Zhang, Zhihua Huang, Xuyang Yao, Jiaxin Wang, Tingting Han, Pengyan Su
Summary: The study found that secondary sub-cloud evaporation is stronger during the day than at night, and has a more significant impact in summer and autumn in the northern subtropics and south temperate zones, and in spring and summer in the mid-subtropics and plateau climate zones. Significant spatial differences were observed in different seasons in the study area, with the plateau climate area experiencing the most significant effect of sub-cloud secondary evaporation throughout the year.
Article
Environmental Sciences
Hee Yoon Kang, Young-Jae Lee, Changseong Kim, Dongyoung Kim, Doo-Ho Kim, Jun-Ho Kim, Dong-Lim Choi, Chang-Keun Kang
Summary: The study reveals that the giant Pacific octopus occupies a similar trophic niche in marine ranches, relying on benthic and pelagic prey, unaffected by increasing octopus weight.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Water Resources
Jagoda Crawford, Suzanne E. Hollins, Karina T. Meredith, Catherine E. Hughes
HYDROLOGICAL PROCESSES
(2017)
Article
Environmental Sciences
Brett Rowling, Andrew S. Kinsela, M. Josick Comarmond, Catherine E. Hughes, Jennifer J. Harrison, Mathew P. Johansen, Timothy E. Payne
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2017)
Article
Engineering, Civil
Shengjie Wang, Mingjun Zhang, Catherine E. Hughes, Jagoda Crawford, Gaofei Wang, Fenli Chen, Mingxia Du, Xue Qiu, Su'e Zhou
JOURNAL OF HYDROLOGY
(2018)
Article
Environmental Sciences
Suzanne E. Hollins, Catherine E. Hughes, Jagoda Crawford, Dioni I. Cendon, Karina T. Meredith
SCIENCE OF THE TOTAL ENVIRONMENT
(2018)
Article
Environmental Sciences
Fang Bian, Katie Coleborn, Ingrid Flemons, Andy Baker, Pauline C. Treble, Catherine E. Hughes, Andrew Baker, Martin S. Andersen, Mark G. Tozer, Wuhui Duan, Christopher J. Fogwill, Ian J. Fairchild
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Engineering, Civil
Martin J. Ankor, Jonathan J. Tyler, Catherine E. Hughes
JOURNAL OF HYDROLOGY
(2019)
Article
Engineering, Civil
Jagoda Crawford, Cecilia S. Azcurra, Catherine E. Hughes, John J. Gibson, Stephen D. Parkes
JOURNAL OF HYDROLOGY
(2019)
Article
Environmental Sciences
Timothy E. Payne, Jennifer J. Harrison, Dioni I. Cendon, M. Josick Comarmond, Stuart Hankin, Catherine E. Hughes, Mathew P. Johansen, Andrew Kinsela, Lida Mokhber Shahin, Adella Silitonga, Sangeeth Thiruvoth, Kerry L. Wilsher
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2020)
Article
Meteorology & Atmospheric Sciences
Shengjie Wang, Rong Jiao, Mingjun Zhang, Jagoda Crawford, Catherine E. Hughes, Fenli Chen
Summary: This study analyzed the isotopic variations in raindrops across China over the past decades, finding that the impact of below-cloud evaporation on precipitation isotopes varies depending on climate parameters and is more pronounced in arid regions. The continental effect on precipitation isotopes is modified with increasing aridity, and the below-cloud evaporation effect has strengthened especially in cold and arid regions of China in recent decades. While not always dominant, the below-cloud evaporation effect is identified as a contributing factor to stable isotope variability and may impact interpretations of past climates in paleoclimate studies.
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
(2021)
Article
Meteorology & Atmospheric Sciences
Shengjie Wang, Shijun Lei, Mingjun Zhang, Catherine Hughes, Jagoda Crawford, Zhongfang Liu, Deye Qu
Summary: The study presents the creation of monthly precipitation isoscapes for China and surrounding countries, based on stable isotope data. The study finds that the spatial and seasonal diversity of precipitation isotopes is influenced by the moisture transportation path controlled by the westerlies and the monsoon. The new isoscapes provide a high-resolution mapping for Chinese precipitation isotopes, allowing for future intra-annual atmospheric process diagnostics.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
David Patch, Natalia O'Connor, Iris Koch, Tom Cresswell, Cath Hughes, Justin B. Davies, Jennifer Scott, Denis O'Carroll, Kela Weber
Summary: This study aimed to elucidate and refine the current understanding of PFAS degradation mechanisms in water through controlled gamma irradiation experiments. It was found that aqueous electrons were the key reactive species responsible for initial PFAS degradation, and the initial -F/+H can occur throughout the chain length, leading to more complex degradation pathways.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Dioni Cendon, Brett Rowling, Catherine E. Hughes, Timothy E. Payne, Stuart Hankin, Jennifer J. Harrison, Mark A. Peterson, Attila Stopic, Henri Wong, Patricia Gadd
Summary: Increasing concentrations of Rare Earth Elements (REE) plus yttrium (REY) in the environment can be used as tracers and fingerprints in earth science systems. However, their use in fingerprinting waste, especially low-level radioactive waste, has not been well-studied. By studying the low-level radioactive waste site at Little Forest, Australia, researchers found that the REY fingerprints of the waste are different from the surrounding groundwater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Civil
Shengjie Wang, Liwei Wang, Mingjun Zhang, Yudong Shi, Catherine E. Hughes, Jagoda Crawford, Jinlong Zhou, Deye Qu
Summary: This study used a Bayesian three-component isotopic mixing model to analyze precipitation samples collected in the Kaxgar-Yarkant Oasis in central Asia. The study assessed the recycling ratio and contribution of transpiration to local precipitation, and found that plant transpiration plays a significant role in the local water cycle.
JOURNAL OF HYDROLOGY
(2022)
Article
Engineering, Civil
J. Crawford, C. E. Hughes, S. D. Chambers
Summary: This study compares daily and weekly stable isotopic data of rainfall collected in Lucas Heights, Australia over a 9-year and 14-year period, respectively. The differences between local meteoric water lines (LMWLs) developed from daily, weekly, or monthly data were small. However, when a precipitation weighted least squares method was used, the differences between daily and weekly derived LMWLs were lower. The isotopic composition of precipitation is influenced by environmental conditions, synoptic weather systems, and large-scale climate drivers.
JOURNAL OF HYDROLOGY
(2023)
Article
Geosciences, Multidisciplinary
Katarina David, Wendy Timms, Catherine E. Hughes, Jagoda Crawford, Dayna McGeeney
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2018)
Article
Engineering, Civil
Arfan Arshad, Ali Mirchi, Javier Vilcaez, Muhammad Umar Akbar, Kaveh Madani
Summary: High-resolution, continuous groundwater data is crucial for adaptive aquifer management. This study presents a predictive modeling framework that incorporates covariates and existing observations to estimate groundwater level changes. The framework outperforms other methods and provides reliable estimates for unmonitored sites. The study also examines groundwater level changes in different regions and highlights the importance of effective aquifer management.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Lihua Chen, Jie Deng, Wenzhe Yang, Hang Chen
Summary: A new grid-based distributed karst hydrological model (GDKHM) is developed to simulate streamflow in the flood-prone karst area of Southwest China. The results show that the GDKHM performs well in predicting floods and capturing the spatial variability of karst system.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Faruk Gurbuz, Avinash Mudireddy, Ricardo Mantilla, Shaoping Xiao
Summary: Machine learning algorithms have shown better performance in streamflow prediction compared to traditional hydrological models. In this study, researchers proposed a methodology to test and benchmark ML algorithms using artificial data generated by physically-based hydrological models. They found that deep learning algorithms can correctly identify the relationship between streamflow and rainfall in certain conditions, but fail to outperform traditional prediction methods in other scenarios.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yadong Ji, Jianyu Fu, Bingjun Liu, Zeqin Huang, Xuejin Tan
Summary: This study distinguishes the uncertainty in drought projection into scenario uncertainty, model uncertainty, and internal variability uncertainty. The results show that the estimation of total uncertainty reaches a minimum in the mid-21st century and that model uncertainty is dominant in tropical regions.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Z. R. van Leeuwen, M. J. Klaar, M. W. Smith, L. E. Brown
Summary: This study quantifies the effectiveness of leaky dams in reducing flood peak magnitude using a transfer function noise modelling approach. The results show that leaky dams have a significant but highly variable impact on flood peak magnitude, and managing expectations should consider event size and type.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Zeda Yin, Yasaman Saadati, M. Hadi Amini, Linlong Bian, Beichao Hu
Summary: Combined sewer overflows pose significant threats to public health and the environment, and various strategies have been proposed to mitigate their adverse effects. Smart control strategies have gained traction due to their cost-effectiveness but face challenges in balancing precision and computational efficiency. To address this, we propose exploring machine learning models and the inversion of neural networks for more efficient CSO prediction and optimization.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Qimou Zhang, Jiacong Huang, Jing Zhang, Rui Qian, Zhen Cui, Junfeng Gao
Summary: This study developed a N-cycling model for lowland rural rivers covered by macrophytes and investigated the N imports, exports, and response to sediment dredging. The findings showed a considerable N retention ability in the study river, with significant N imports from connected rivers and surrounding polders. Sediment dredging increased particulate nitrogen resuspension and settling rates, while decreasing ammonia nitrogen release, denitrification, and macrophyte uptake rates.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Xue Li, Yingyin Zhou, Jian Sha, Man Zhang, Zhong-Liang Wang
Summary: High-resolution climate data is crucial for predicting regional climate and water environment changes. In this study, a two-step downscaling method was developed to enhance the spatial resolution of GCM data and improve the accuracy for small basins. The method combined medium-resolution climate data with high-resolution topographic data to capture spatial and temporal details. The downscaled climate data were then used to simulate the impacts of climate change on hydrology and water quality in a small basin. The results demonstrated the effectiveness of the downscaling method for spatially differentiated simulations.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Tongqing Shen, Peng Jiang, Jiahui Zhao, Xuegao Chen, Hui Lin, Bin Yang, Changhai Tan, Ying Zhang, Xinting Fu, Zhongbo Yu
Summary: This study evaluates the long-term interannual dynamics of permafrost distribution and active layer thickness on the Tibetan Plateau, and predicts future degradation trends. The results show that permafrost area has been decreasing and active layer thickness has been increasing, with an accelerated degradation observed in recent decades. This has significant implications for local water cycle processes, water ecology, and water security.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Chi Zhang, Xu Zhang, Qiuhong Tang, Deliang Chen, Jinchuan Huang, Shaohong Wu, Yubo Liu
Summary: Precipitation over the Tibetan Plateau is influenced by systems such as the Asian monsoons, the westerlies, and local circulations. The Indian monsoon, the westerlies, and local circulations are the main systems affecting precipitation over the entire Tibetan Plateau. The East Asian summer monsoon primarily affects the eastern Tibetan Plateau. The Indian monsoon has the greatest influence on precipitation in the southern and central grid cells, while the westerlies have the greatest influence on precipitation in the northern and western grid cells. Local circulations have the strongest influence on the central and eastern grid cells.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Manuel Almeida, Antonio Rodrigues, Pedro Coelho
Summary: This study aimed to improve the accuracy of Total Phosphorus export coefficient models, which are essential for water management. Four different models were applied to 27 agroforestry watersheds in the Mediterranean region. The modeling approach showed significant improvements in predicting the Total Phosphorus diffuse loads.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Yutao Wang, Haojie Yin, Ziyi Wang, Yi Li, Pingping Wang, Longfei Wang
Summary: This study investigated the distribution and transformation of dissolved organic nitrogen (DON) in riverbed sediments impacted by effluent discharge. The authors found that the spectral characteristics of dissolved organic matter (DOM) in surface water and sediment porewater could be used to predict DON variations in riverbed sediments. Random forest and extreme gradient boosting machine learning methods were employed to provide accurate predictions of DON content and properties at different depths. These findings have important implications for wastewater discharge management and river health.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Saba Mirza Alipour, Kolbjorn Engeland, Joao Leal
Summary: This study assesses the uncertainty associated with 100-year flood maps under different scenarios using Monte Carlo simulations. The findings highlight the importance of employing probabilistic approaches for accurate and secure flood maps, with the selection of probability distribution being the primary source of uncertainty in precipitation.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Janine A. de Wit, Marjolein H. J. van Huijgevoort, Jos C. van Dam, Ge A. P. H. van den Eertwegh, Dion van Deijl, Coen J. Ritsema, Ruud P. Bartholomeus
Summary: The study focuses on the hydrological consequences of controlled drainage with subirrigation (CD-SI) on groundwater level, soil moisture content, and soil water potential. The simulations show that CD-SI can improve hydrological conditions for crop growth, but the success depends on subtle differences in geohydrologic characteristics.
JOURNAL OF HYDROLOGY
(2024)
Article
Engineering, Civil
Constantin Seidl, Sarah Ann Wheeler, Declan Page
Summary: Water availability and quality issues will become increasingly important in the future due to climate change impacts. Managed Aquifer Recharge (MAR) is an effective water management tool, but often overlooked. This study analyzes global MAR applications and identifies the key factors for success, providing valuable insights for future design and application.
JOURNAL OF HYDROLOGY
(2024)