Article
Environmental Sciences
Zicheng Yu, Yicheng Fu, Ye Zhang, Zhe Liu, Yixuan Liu
Summary: This study quantitatively investigated the hydrodynamic changes in different river morphologies and their impact on river ecosystems. By characterizing different river morphologies using sinuosity, the researchers used a River 2D model to simulate and analyze these changes. The results showed that a lower sinuosity led to worse depth and velocity diversity, while a higher sinuosity did not necessarily result in better depth and velocity diversity. This study highlights the importance of ecological engineering in adjusting river planform to increase the diversity of river/channel geometry and support ecological restoration efforts.
Article
Engineering, Civil
Xiaohui Yan, Abdolmajid Mohammadian, Ali Khelifa
Summary: Modeling the spatial distribution of flow depth in fluvial systems is crucial for various applications such as flow mitigation, river rehabilitation, and water resources infrastructure design. This study introduces a novel hybrid 2D hydraulic-MGGP approach to model flow depth distribution. By dividing the study area into sub-regions and utilizing Pareto optimization, the best MGGP model for each sub-region was identified, demonstrating accurate predictions and efficient performance.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Leonardo Stucchi, Daniele Bocchiola
Summary: Water withdrawal from rivers is crucial for various industries, but it must be balanced with the need to maintain river ecosystems. Environmental Flow Assessment (EFA) is used to assess the minimum amount of water that should be left in the river. This study focuses on the Kumbih river in Sumatra, Indonesia and uses a multiple criteria approach to evaluate the EF. The study provides valuable insights into the EF requirements in the region.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Stefan Gronsdahl, Dan McParland, Brett Eaton, R. Dan Moore, Jordan Rosenfeld
Summary: The geomorphic instream-flow tool GIFT shows satisfactory performance in simulating hydraulic habitat in several rivers in western North America, but further testing and validation are needed before its widespread application.
RIVER RESEARCH AND APPLICATIONS
(2021)
Article
Environmental Sciences
N. Y. Flores, F. P. L. Collas, K. Mehler, M. M. Schoor, C. K. Feld, R. S. E. W. Leuven
Summary: The longitudinal training dams in the river Waal provide suitable habitats for both native and alien mussel species, with recommendations to enhance habitats for native species by increasing fine and sandy substrate types while reducing hard substrate areas. Future research should include additional abiotic parameters to improve habitat suitability predictions and compare the results across different riverine habitats.
ENVIRONMENTAL MODELING & ASSESSMENT
(2022)
Article
Mechanics
Ruichang Hu, Jianmin Zhang
Summary: A new model is developed to analyze the influence of vegetation on velocity distribution in compound channels, with consistent experimental and calculated data. Analysis reveals varying effects of different parameters on the model.
Article
Water Resources
Junzheng Liu, Haijue Xu, Yuchuan Bai, Zhe Huang, Chang Li, Zhichao Wen, Ziqing Ji
Summary: This study develops a novel analytical model to simulate the depth average velocity profiles of overbank flows with floodplain vegetation. An improved eddy viscosity model that considers the transverse variation of the lambda is employed to quantify the transverse momentum transfer, and a linear empirical function simplifies the secondary current. The proposed model shows better prediction accuracy, particularly in the shearing layer domain.
HYDROLOGICAL PROCESSES
(2023)
Article
Environmental Sciences
Isai Gerardo Reyes-Cedeno, Martin Hernandez-Marin, Anuard Isaac Pacheco-Guerrero, John P. Gannon
Summary: In this study, a comprehensive methodology was used to determine the environmental flow regime of La Yerbabuena, a temporary stream in Mexico, through different stages of analysis, including geomorphological watershed analysis, hydrologic analysis, hydraulic modeling, and environmental analysis. The results showed that the proposed methodology achieved the goals defined by the Mexican regulation and provided a better understanding of the hydrological behavior of the stream throughout the year. The application of this methodology for temporary streams can contribute to better water management and comply with existing regulations.
Article
Mechanics
H. Zong, Z. Su, H. Liang, Y. Wu
Summary: This study combines stereo particle imaging velocimetry measurements and reduced-order modeling to investigate the interaction between plasma jets and turbulent boundary layer. It explores three different working modes of a plasma actuator and reveals the corresponding flow patterns and turbulence characteristics. The findings provide valuable insights into the mechanisms of plasma jet interaction with turbulent flow.
Article
Multidisciplinary Sciences
Carina Zittra, Simon Vitecek, Thomas Schwaha, Stephan Handschuh, Jan Martini, Ariane Vieira, Hendrik C. Kuhlmann, Johann Waringer
Summary: In this study, the researchers investigated the internal and external head morphology of three Drusinae species to understand the relationship between head capsule morphology and internal anatomy. They found that the head musculature is highly conserved across evolutionary lineages with only minor changes between taxa. However, the tentorium is reduced in the species with the most aberrant head capsule. This research provides insights into the importance of larval head capsule corrugation in Trichoptera.
SCIENTIFIC REPORTS
(2022)
Article
Geochemistry & Geophysics
A. Spang, T. S. Baumann, B. J. P. Kaus
Summary: This paper presents a simple and intuitive method to parameterize complex 3D geological bodies and incorporate them into geodynamic inverse problems. Two examples are used to demonstrate how small differences in the initial geometry of a model can lead to vastly different results. The importance of sensitivity analysis and inversion of the initial geometry in geodynamic studies is highlighted.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Environmental Sciences
Cheng Wang, Xihuan Sun
Summary: The study investigates the annular slit flow field in hydraulic capsule transportation using a combination of physical experiments and theoretical analysis. The flow velocity distribution of the gap flow field was studied by changing the position of the capsule at different bend positions. The study reveals that the flow field distribution remains similar for different starting positions of the capsule, but the flow velocity increases suddenly and dramatically at the inflow section of the ring gap. Additionally, the study finds significant differences in flow velocity distribution between the concave and convex sides of the pipe, with larger fluctuations observed on the concave side.
Article
Electrochemistry
Eric A. Carmona, Paul Albertus
Summary: We developed a model to assess current distributions at the interfaces between Li metal and single-ion conducting solid ceramic electrolytes, considering the effects of interfacial mechanics. We found that the interfacial mechanical state has a small or negligible influence on the current distribution, while the interface geometry significantly affects the current focusing. Additionally, different lithium peak and valley geometries lead to different void formations. The presence of high-curvature interface geometry provides insights into the cycling performance of different types of separators.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Energy & Fuels
Bo Zhang, Ranjith Pathegama Gamage, Chengpeng Zhang, Ayal Wanniarachchi
Summary: This study investigates how fracture roughness affects proppant transport and placement using an improved computational fluid dynamics-discrete element method. The results show that increasing fracture roughness enhances the lateral conveyance of proppant and reduces its settling velocity. The fractal dimension of fracture walls and the fracture inclination angle also influence proppant movement and deposition.
Article
Engineering, Manufacturing
Ngangkham Peter Singh, D. S. Srinivasu, N. Ramesh Babu
Summary: Abrasive waterjet is an effective tool for manufacturing parts from multi-layered structures. However, the complex interaction between the jet and multiple layers with different material properties poses a challenge in achieving the desired kerf geometry. This study proposes a model that captures the interaction and predicts the kerf geometry in a single layer of multi-layered structures, considering nonlinearities and the effects of process parameters.
CIRP JOURNAL OF MANUFACTURING SCIENCE AND TECHNOLOGY
(2022)
Correction
Multidisciplinary Sciences
Norah E. M. Brown, Joey R. Bernhardt, Kathryn M. Anderson, Christopher D. G. Harley
SCIENTIFIC REPORTS
(2018)
Article
Biochemistry & Molecular Biology
Mary I. O'Connor, Joanna R. Bernhardt
Article
Biology
Joey R. Bernhardt, Jennifer M. Sunday, Patrick L. Thompson, Mary I. O'Connor
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2018)
Article
Multidisciplinary Sciences
Norah E. M. Brown, Joey R. Bernhardt, Kathryn M. Anderson, Christopher D. G. Harley
SCIENTIFIC REPORTS
(2018)
Article
Ecology
Joey R. Bernhardt, Jennifer M. Sunday, Mary I. O'Connor
AMERICAN NATURALIST
(2018)
Article
Evolutionary Biology
M. Tseng, Joey R. Bernhardt, Alexander E. Chila
EVOLUTIONARY APPLICATIONS
(2019)
Article
Ecology
Norah E. M. Brown, Joey R. Bernhardt, Christopher D. G. Harley
Article
Biology
Joey R. Bernhardt, Pavel Kratina, Aaron Louis Pereira, Manu Tamminen, Mridul K. Thomas, Anita Narwani
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2020)
Review
Ecology
Tyler D. Eddy, Joey R. Bernhardt, Julia L. Blanchard, William W. L. Cheung, Mathieu Colleter, Hubert du Pontavice, Elizabeth A. Fulton, Didier Gascuel, Kelly A. Kearney, Colleen M. Petrik, Tilla Roy, Ryan R. Rykaczewski, Rebecca Selden, Charles A. Stock, Colette C. C. Wabnitz, Reg A. Watson
Summary: Transfer efficiency, the proportion of energy passed between nodes in food webs, is an emergent and unitless property that is challenging to measure. It responds dynamically to environmental and ecosystem changes, with slight variations potentially having large effects on food availability for top predators. Both process-level analysis and observed macro-scale variations suggest that ecosystem-scale transfer efficiency is highly variable and will decline with climate change, emphasizing the importance of fully understanding the processes controlling transfer efficiency.
TRENDS IN ECOLOGY & EVOLUTION
(2021)
Article
Multidisciplinary Sciences
Joey R. Bernhardt, Mary I. O'Connor
Summary: This study examines the impact of biodiversity on the nutritional value of seafood diets and human health. It reveals that species with different ecological traits in seafood have distinct micronutrient profiles, but increasing species richness does not necessarily increase protein content and may lead to higher concentrations of toxic metal contaminants. By drawing on biodiversity-ecosystem functioning theory, the study demonstrates the importance of biodiversity in enhancing nutritional benefits derived from seafood and consolidating sustainability goals for biodiversity and human well-being.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biology
Katie E. Marshall, Kathryn M. Anderson, Norah E. M. Brown, James K. Dytnerski, Kelsey L. Flynn, Joey R. Bernhardt, Cassandra A. Konecny, Helen Gurney-Smith, Christopher D. G. Harley
Summary: This study tested the assumptions that thermal performance can be predicted from constant temperatures in fluctuating temperature conditions using two latitudinally matched populations of Mytilus trossulus. The results showed that performance in fluctuating temperatures could not be accurately predicted from constant temperatures, with important interactions with the population of origin. The findings emphasize the need for caution when using TPCs generated under constant temperature conditions for predicting wild population responses to fluctuating conditions.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Review
Ecology
Diane S. Srivastava, Laura Coristine, Amy L. Angert, Megan Bontrager, Sarah L. Amundrud, Jennifer L. Williams, Alex C. Y. Yeung, Devin R. de Zwaan, Patrick L. Thompson, Sally N. Aitken, Jennifer M. Sunday, Mary I. O'Connor, Jeannette Whitton, Norah E. M. Brown, Colin D. MacLeod, Laura Wegener Parfrey, Joey R. Bernhardt, Juli Carrillo, Christopher D. G. Harley, Patrick T. Martone, Benjamin G. Freeman, Michelle Tseng, Simon D. Donner
Summary: Forecasting the impact of climate change on biological systems is a major challenge for biologists, and there is a lack of effective framework in climate change biology to anticipate and resolve uncertainty. Attention should be paid to uncertainties in biological systems as well as predicting and addressing the effects of climate change on organisms.
ECOLOGICAL MONOGRAPHS
(2021)
Article
Ecology
Cornelia W. Twining, Joey R. Bernhardt, Alison M. Derry, Cameron M. Hudson, Asano Ishikawa, Naoki Kabeya, Martin J. Kainz, Jun Kitano, Carmen Kowarik, Sarah Nemiah Ladd, Miguel C. Leal, Kristin Scharnweber, Jeremy R. Shipley, Blake Matthews
Summary: The nutritional diversity of resources can impact the adaptive evolution of consumer metabolism and diversification. Omega-3 fatty acids have a significant influence on consumer fitness. Consumers can evolve in response to resource quality variations and genetic mechanisms underpinning consumer adaptation to fatty acid distributions are important for understanding evolutionary diversification.
Article
Biology
Joey R. Bernhardt, Mary O'Connor, Jennifer M. Sunday, Andrew Gonzalez
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2020)
Article
Biodiversity Conservation
Gerald G. Singh, Nathalie Hilmi, Joey R. Bernhardt, Andres M. Cisneros Montemayor, Madeline Cashion, Yoshitaka Ota, Sevil Acar, Jason M. Brown, Richard Cottrell, Salpie Djoundourian, Pedro C. Gonzalez-Espinosa, Vicky Lam, Nadine Marshall, Barbara Neumann, Nicolas Pascal, Gabriel Reygondeau, Joacim Rocklov, Alain Safa, Laura R. Virto, William Cheung
Article
Geography, Physical
A. Securo, C. Del Gobbo, L. Rettig, S. Pillon, A. De Luca, D. Fontana, E. Benedetti Fasil, R. R. Colucci
Summary: Small glaciers in temperate mountain regions have experienced significant reduction and unprecedented melt rates in recent years. Some glaciers have transitioned from clean ice to debris-covered or even rock glaciers. This study examines the surface elevation change of the Popera Alto glacier in the Sesto Dolomites using LiDAR and Structure from Motion surveys, and analyzes its evolution in terms of surface cover and geomorphic processes. The glacier has lost an average of 0.35 m water equivalent per year over the past 16 years, with active modification of its surface cover by geomorphic processes. The role of debris and local topography feedback has allowed the resilience of the glacier, leading to a marked difference between the current environmental equilibrium line altitude (envELA) and the effective ELA (effELA) of the glacier.
Article
Geography, Physical
Zhenzhen Yan, Yaolin Shi, Lili Kang, Xiangtao Fan
Summary: This study proposes a quantitative regional deformation model based on global positioning system (GPS) data to quantitatively analyze the morphological evolution of rivers in the Three Rivers Region. It finds that tectonic deformation phases significantly control regional landscape development and drainage features.
Article
Geography, Physical
Said Mukhtar Ahmad, Nitheshnirmal Sadhasivam, Mona Lisa, Luigi Lombardo, Mustafa Kemal Emil, Amira Zaki, Cees J. Van Westen, Islam Fadel, Hakan Tanyas
Summary: In this study, we investigated a large slow-moving landslide in Northern Pakistan, using Interferometric Synthetic Aperture Radar (InSAR) analysis. Our results showed that the crown of the landslide is moving faster than the surrounding regions, while the footslope experienced high deformations. We discussed the possible roles of meteorologic and anthropogenic factors in causing these deformations.
Article
Geography, Physical
Shuang Bian, Xibin Tan, Yiduo Liu, Suoya Fan, Junfeng Gong, Chao Zhou, Feng Shi, Michael A. Murphy
Summary: The Yarlung River's drainage divide is primarily moving north due to variations in precipitation across the Himalayas. The Gangdese drainage divide shows predominantly northward and southward migration, controlled by base-level rise and downstream influences. The presence of north-trending rifts separates the drainage divides into five zones, each with a distinct migration pattern.
Article
Geography, Physical
Joon-Young Park, Seok Yoon, Deuk-Hwan Lee, Seung-Rae Lee, Hwan-Hui Lim
Summary: This study developed a multiple-regression model to estimate site-specific average growth rates of debris flow events. The proposed model was validated through a case study and showed reasonable predictions of debris flow velocities and heights.
Article
Geography, Physical
Nicholas Reilly Mccarroll, Arnaud Temme
Summary: New geochronological data from hillslope boulder armor in the Flint Hills reveal the rates and timing of lateral retreat in the landscape. Surfaces of limestone boulders dating back to the Pleistocene era were found, and the ages of the hillslope armor increased with distance from the limestone bench. The estimated rate of lateral retreat in this landscape is 0.02 mm/yr.
Article
Geography, Physical
Xinbo Yao, Yuntao Tian
Summary: By studying the Longmenshan-Minshan drainage divide, we found that it has reached a dynamic steady state, indicating a balance between erosion and rock uplift. This study also reveals the process of formation and evolution of the divide and raises questions about the effectiveness of divide migration metrics.
Article
Geography, Physical
Junhui Yu, Pin Yan, Yanlin Wang, Guangjian Zhong, Changliang Chen
Summary: The seafloor mounds in the Chaoshan Depression of the South China Sea are identified as mud volcanoes, with fluids coming from underlying mud-fluid diapirs. The hydrocarbon gases feeding the mud volcanoes and diapirs are reasoned to originate from deep Mesozoic source rocks, indicating significant Mesozoic hydrocarbon potential in the Chaoshan Depression.
Article
Geography, Physical
Marius Huber, Luc Scholtes, Jerome Lave
Summary: This paper investigates the relationships between hillslope stability and fabric anisotropy of brittle rock materials and the implications for landscape shaping. It explores the different stability modes and movement characteristics of anisotropic materials, and demonstrates the significant control of material anisotropy on landscape shaping.
Article
Geography, Physical
Shubhra Sharma, Anil D. Shukla
Summary: The study investigates the relationship between glacial dynamics and lake sedimentation during the mid-Holocene climate variability in the Southern Zanskar ranges. It utilizes geomorphological disposition, elemental geochemistry, and optical chronology of relict lake sediment to reconstruct the pattern of minor glacier responses to climate variability. The results indicate six centennial to millennial-scale climatic phases, with warmer phases represented by decreased mineralogical fine grain flux and increased coarse grain flux. The study highlights the potential of relict lake sediment and para/peri-glacial landforms in understanding glacial dynamics and climate change during the Holocene.
Article
Geography, Physical
Jean-Francois Bernier, Sydney W. Meury, Patrick Lajeunesse
Summary: In this study, an approach combining various data and observation methods was proposed to improve the monitoring of landfast ice dynamics and its geomorphic impact on sedimentary systems. The results demonstrate the ability of the approach to accurately measure interannual variations in landfast ice and constrain geomorphic changes. Additionally, the study found a strong relationship between the severity of freezing seasons and the response of landfast ice to hydrometeorological events, with different geomorphic responses observed under different winter conditions.
Article
Geography, Physical
Heping Shu, Fanyu Zhang
Summary: This study investigates the relationship between susceptibility of soil-water hazards and human activities, geoheritage sites in the Loess Plateau, China. Landslide and gully erosion susceptibility were obtained using gradient boosting and support vector machines, and a hazard matrix was formed to couple landslide and gully erosion susceptibility. The study found different trends in the magnification times of soil-water hazards chain under different scenarios.
Article
Geography, Physical
Guangqiang Qian, Zhuanling Yang, Xuegang Xing, Zhibao Dong, Youyuan Guo
Summary: Granule ripples are aeolian landforms armored against erosion by coarse grains. This study investigates their seasonal morphological evolution and migration in the Sanlongsha Dune Field. The findings show that wind events, especially those exceeding the threshold velocities of coarse grains, significantly influence the morphodynamics of granule ripples. The study highlights the importance of considering the reptation and saltation of coarse grains in future research on granule ripples.