Article
Multidisciplinary Sciences
Lake Endalew, Arega Mulu
Summary: This research utilized a bathymetric survey method to determine the amount of sediment accumulated in an irrigation reservoir. The study found that the reservoir's total capacity had decreased by 7.52% over the past six years, with an average sedimentation rate of 49,500 m3/year and an annual capacity reduction of 1.25%. Based on these sedimentation rates, the reservoir's useful life is estimated to be less than 15 years.
Article
Engineering, Civil
Wei Tian, Xiaomang Liu, Kaiwen Wang, Peng Bai, Changming Liu
Summary: This study estimated monthly reservoir evaporation losses for 916 large reservoirs in China from 1985 to 2018. Total evaporation losses significantly increased due to significant increases in evaporation rate and reservoir surface area. Evaporation losses of large reservoirs in China are significantly smaller than that in the United States, mainly due to the larger average depth and smaller area of China's large reservoirs.
JOURNAL OF HYDROLOGY
(2021)
Article
Water Resources
Yitbarek Andualem Mekonnen, Tamene Dagnaw Mengistu, Asimamaw Nigusie Asitatikie, Yilikal Wondimu Kumilachew
Summary: Reservoir sedimentation is a serious problem that reduces reservoir lifespan and affects activities such as water supply, irrigation, and hydropower. This study used bathymetric survey and Arc-GIS technology to evaluate the sedimentation rate and remaining capacity of the Adebra night storage reservoir. The results showed that the reservoir's capacity was reduced by an average of 24.8% over 8 years, with a sedimentation rate of 1147.5 cubic meters per year and a loss rate of 3.1% per year.
APPLIED WATER SCIENCE
(2022)
Article
Engineering, Civil
Wei Tian, Xiaomang Liu, Kaiwen Wang, Peng Bai, Changming Liu, Xijin Liang
Summary: Estimating global reservoir evaporation losses is crucial for reservoir management, but there is still a gap in estimating at a global scale due to data limitations. Using two new datasets, we successfully estimated the evaporation volume of 7242 large reservoirs worldwide from 1985 to 2016. The results show significant and increasing evaporation losses, with 80% of the increment contributed by middle-income countries.
JOURNAL OF HYDROLOGY
(2022)
Article
Geosciences, Multidisciplinary
Cornelia Zech, Tilo Schoene, Julia Illigner, Nico Stolarczuk, Torsten Queisser, Matthias Koeppl, Heiko Thoss, Alexander Zubovich, Azamat Sharshebaev, Kakhramon Zakhidov, Khurshid Toshpulatov, Yusufjon Tillayev, Sukhrob Olimov, Zabihullah Paiman, Katy Unger-Shayesteh, Abror Gafurov, Bolot Moldobekov
Summary: The CAWa research network, funded by the German Federal Foreign Office, has established 18 remotely operated multi-parameter stations in Central Asia. These stations aim to support the collection of meteorological and hydrological data for various scientific or engineering applications.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Geosciences, Multidisciplinary
Chen Zhao, Xiuquan Hu, Jianghan Li, Chi Yi, Jieyi Li, Zhipeng Niu
Summary: This study presents a detailed characterization of the underground reservoir architecture of deep-water submarine fans in the Albacora Leste oilfield in Brazil, based on well-log and seismic model fitting. The study establishes a sedimentary microfacies distribution model for each reservoir and provides insights into the architecture of the target layer. The findings have practical significance for the effective development of deep-water submarine-fan reservoirs in the area and contribute to the advancement of deep-water sedimentology.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Environmental Sciences
M. N. Miranda, C. Rosa, A. Peres, R. Maia
Summary: The study highlights the importance of sediment monitoring in Portuguese dam reservoirs to understand the impact of sedimentation on reservoir morphology and contamination, especially from nearby mines. Regular monitoring is crucial to improve river continuity and meet EU Water Framework Directive standards.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Civil
Rahul Kumar Jaiswal, Gunja Dhruw, Sukant Jain, Ravi V. Galkate, Anil Kumar Lohani, Akhilesh Verma
Summary: This research proposed the application of the Otsu segmentation technique in Google Earth Engine (GEE) to determine the revised water spread using microwave remote sensing data. An analysis of four reservoirs in the Chhattisgarh state of India showed significant losses in capacity due to sediment deposition from catchments. The proposed application has the advantage of being applicable in cloudy weather with no human interference.
WATER RESOURCES MANAGEMENT
(2023)
Editorial Material
Geography, Physical
Yougui Song, Shengli Yang, Junsheng Nie, Jinbo Zan, Chunhui Song
Summary: The review summarizes the evolution of paleoclimate and paleoenvironment in Central Asia since the late Pliocene, indicating a long-term drying or desertification trend with at least one major drying event occurring around 0.5-0.6 million years ago. Despite an overall drying trend, the Holocene has been characterized by persistent wet conditions.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Environmental Sciences
Xiaoya Tang, Sidong Zeng, Guoxian Huang, Sichen Tong, Fei Qiao, Yuanxin Ren, Xingxing Zhang
Summary: The study focuses on how to improve hydrodynamic conditions in the Three Gorges Reservoir area to mitigate sedimentation and phosphorus retention. The tide-type operation method is proposed and it is found to be effective in reducing sedimentation and TP retention.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Klajdi Sotiri, Stephan Hilgert, Michael Mannich, Tobias Bleninger, Stephan Fuchs
Summary: Siltation directly reduces the usable water amount in reservoirs, posing a significant challenge in the 21st century. Assessing sediment volume and distribution accurately requires considering multiple measurement techniques.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Engineering, Civil
Muhittin Karaman
Summary: This study uses satellite images to monitor the temporal surface water dynamics and volume fluctuations of Kemer Dam in Turkey, and integrates in-situ and remote sensing data to generate underwater topography. The Pyramidal Frustum method proves to be simple and accurate, making it a useful tool for similar studies. Additionally, PlanetScope imagery contributes significantly to hydrological studies.
JOURNAL OF HYDROLOGY
(2022)
Article
Environmental Sciences
Berenger Koffi, Martin Sanchez, Kouadio Jean Olivier Kouame, Hilaire Amemou, Gnibga Issoufou Yangouliba, Michal Habel, Dibi Brou, Kouakou Lazare Kouassi
Summary: This study simulated the hydrodynamics and sedimentation of the Lobo River reservoir, finding that the model accurately reproduced water level fluctuations and identified the significant influence of initial conditions on model stability. The reservoir's trapping efficiency ranged from 26.7% to 80.4%, with sediment deposition occurring during high-loaded flow periods in the rise and fall phases of the hydrograph. The preferred sediment deposition areas were the old and new intake and the weir.
ENVIRONMENTAL EARTH SCIENCES
(2023)
Article
Green & Sustainable Science & Technology
Xuanxuan Wang, Yaning Chen, Gonghuan Fang, Zhi Li, Yongchang Liu
Summary: Central Asia is facing a severe water crisis that is limiting the achievement of sustainable development goals in the region. This study provides a multi-perspective analysis of the water crisis, considering factors such as water stress, safe drinking water access, water pollution, climate change, population growth, poverty, urbanization, and transboundary river management. The results indicate that the water crisis is intensifying in Central Asia, with Uzbekistan and Turkmenistan being classified as severely water stressed countries. Human activities have a significant impact on the water crisis, especially factors such as cultivated land area and population. The research emphasizes the importance of sustainable water resource management and highlights the need for effective action to address the worsening water security situation in Central Asia.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Environmental Sciences
Nouhaila Mazigh, Abdeslam Taleb, Nihal Baji, Badr El Fathi, Mohammed Moukhliss, Ali El Bilali
Summary: The El Malleh dam reservoir in the Mohammedia region of Morocco is crucial for irrigation and flood protection. However, flash floods pose a threat to the reservoir's sustainability due to sedimentation and water contamination. This study examines the water quality of the reservoir through laboratory analysis, Water Quality Index (WQI) calculation, and statistical analysis. The results indicate poor water quality and variations in the concentrations of major elements between surface and pore waters.
GEOCARTO INTERNATIONAL
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Izabela Strzeminska, Cecile Factor, Javier Jimenez-Lamana, Sabrina Lacomme, Maria Angels Subirana, Philippe Le Coustumer, Dirk Schaumloffel, Philippe Robert, Joanna Szpunar, Claire Corot, Ryszard Lobinski
Summary: This study aimed to identify the speciation of gadolinium (Gd) retained in the deep cerebellar nuclei (DCN) of rats administered with gadoterate or gadodiamide. The results showed that the form of Gd in the DCN differed between the two contrast agents. For gadoterate, the majority of Gd was present in the soluble fraction, while for gadodiamide, most of the Gd was in the form of insoluble particulate species. This study provided important evidence for the dechelation of linear GBCAs and offered insights into the mechanisms of Gd deposition in the brain.
INVESTIGATIVE RADIOLOGY
(2022)
Article
Pathology
Yassine Bouchoucha, Arnault Tauziede-Espariat, Arnaud Gauthier, Delphine Guillemot, Dorian Bochaton, Julien Vibert, Matthieu Carton, Sarah Watson, Sandrine Grossetete, Chloe Quignot, Daniel Orbach, Nadege Corradini, Gudrun Schleiermacher, Franck Bourdeaut, Marie Simbozel, Christelle Dufour, Veronique Minard-Colin, Mehdi Brahmi, Franck Tirode, Daniel Pissaloux, Marie Karanian, Marie-Christine Machet, Julien Masliah-Planchon, Olivier Delattre, Liesbeth Cardoen, Gaelle Pierron, Francois Doz
Summary: BCOR-ITD tumors represent a family of aggressive entities affecting young children, with poor prognosis except for clear cell sarcoma of the kidney (CCSK). Clinical, radiological, histopathological, and molecular findings differ among CNS BCOR-ITD and BCOR-ITD sarcomas, potentially due to differences in cells of origin.
JOURNAL OF PATHOLOGY CLINICAL RESEARCH
(2022)
Article
Ecology
Alexandra Mattei, Frederic Huneau, Emilie Garel, Laurent Sorba, Sophie Orsini, Sebastien Santoni
Summary: The lack of hydrological considerations in existing protection statutes for small temporary wetlands has recently been pointed out as the main cause of their disappearance. Here, by combining physical and isotopes measurements, we first highlight the main role played by groundwater in the flooding phase of the temporary pond and the involvement of different water reservoirs in varying proportions over time to maintain the pond filled. These results demonstrate the connection existing between a geographically isolated wetland and the regional groundwater and highlight the urgent need to consider both surface and groundwater fluxes in specific protection statutes for wetlands.
Article
Environmental Sciences
Nini Sane, Malick Mbengue, Amandine Laffite, Serge Stoll, John Pote, Philippe Le Coustumer
Summary: Developing countries face challenges in municipal wastewater management, as untreated wastewater and sludge from septic tanks are often discharged into rivers without treatment. This study developed a wastewater treatment plant prototype that incorporates Moringa oleifera seeds treatment, which effectively reduces faecal indicator bacteria and antibiotic-resistant bacteria in domestic wastewater.
Article
Materials Science, Biomaterials
Omar El Hamoui, Tarek Sayde, Isabelle Svahn, Antoine Gudin, Etienne Gontier, Philippe Le Coustumer, Julien Verget, Philippe Barthelemy, Karen Gaudin, Serge Battu, Gaetane Lespes, Bruno Alies
Summary: This study demonstrates the feasibility of using nucleoside-derived low-molecular-weight gelators (LMWGs) as a scaffold for 3D cell culture. The cell viability, proliferation, and spatial organization of glioblastoma cells cultured on the LMWG scaffold were successfully achieved, indicating the potential applications of this method. One of the hydrogel systems tested showed excellent support for cell proliferation and spheroidal organization throughout the culture time. These LMWG-based systems offer advantages such as minimal material consumption, optimal viscoelasticity for cell culture, and thermoreversibility. The ability to grow spheroids from patient cells using this scaffold holds promise for personalized therapies by reducing lattice variability.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2022)
Article
Ecology
Christina M. Schubert, Tobias R. Juhlke, Frederic Huneau, Emilie Garel, Sebastien Santoni, Johannes A. C. Barth, Robert van Geldern
Summary: The current research on carbon cycling in inland waters lacks understanding of carbon outgassing from small streams, resulting in underestimation of their contribution to global carbon transfer budgets. This study examined a mountain river in Corsica, France, to investigate carbon sources and sinks. The results showed that the river had low DIC content and high δC-13(DIC) values at the source, which decreased downstream due to soil respiration. The river acted as a weak to medium source of CO2 to the atmosphere annually, although headwater parts temporarily acted as CO2 sinks.
Article
Engineering, Civil
B. Nlend, F. Huneau, E. Garel, S. Santoni, A. Mattei
Summary: This study aims to understand the factors influencing the spatial and temporal changes of isotopes content in rainfall over a region with complex topography and aerology. Using regression analysis, isoscapes were constructed for different months based on the precipitation isotope, climatic, and topographic data. The results reveal the controlling effect of altitude and slope on the precipitation isotopes content, with partial influence from meteorological settings. Additionally, the influence of precipitation types on the isotopic composition of rainwater in the study region was hypothesized for the first time.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Lina Ramirez Arenas, Philippe Le Coustumer, Stephan Ramseier Gentile, Stephane Zimmermann, Serge Stoll
Summary: The presence of nanoparticles in drinking water raises concerns about their potential risks to human health and the efficacy of water treatment plants in removing them. This study examines the efficiency of granular activated carbon (GAC) in removing CeO2 nanoparticles. The results show that GAC has a good affinity for nanoparticles, with higher adsorption capacity and removal efficiency in lake water compared to ultrapure water. The adsorption mechanism is mainly controlled by electrostatic attractions, and mass transfer processes play a role in the removal of nanoparticles in lake water.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Forestry
Martin Haeusser, Sugam Aryal, Johannes A. C. Barth, Joerg Bendix, Emilie Garel, Robert van Geldern, Frederic Huneau, Tobias R. Juhlke, Isabel Knerr, Sebastien Santoni, Sonja Szymczak, Katja Trachte, Achim Braeuning
Summary: Black pine and Maritime pine show different growth phenology with a 1-month delay for xylogenesis and increasing growth rates from low to high elevations. Investigating seasonal wood formation is crucial to understanding tree growth responses to climate impact.
TREES-STRUCTURE AND FUNCTION
(2023)
Article
Environmental Sciences
Lamine Boumaiza, Safouan Ben Ammar, Romain Chesnaux, Randy L. Stotler, Bernhard Mayer, Frederic Huneau, Karen H. Johannesson, Jana Levison, Kay Knoeller, Christine Stumpp
Summary: This study investigates the sources and transformation processes of nitrate (NO3) contamination in a typical Mediterranean coastal agricultural area in Tunisia using multiple isotopic tracers and a Bayesian isotope MixSIAR model. The results show that the measured NO3 concentrations in groundwater are above the natural baseline threshold, indicating anthropogenic influence. The isotopic analysis suggests that manure, soil organic matter, and sewage are the potential sources of NO3, with manure-derived NO3 being the dominant source. The study also reveals the occurrence of denitrification and nitrification in the groundwaters, reflecting the complexity of interactions within the coastal aquifer.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Angel Negrete Velasco, Stephan Ramseier Gentile, Stephane Zimmermann, Philippe Le Coustumer, Serge Stoll
Summary: This study evaluates the efficiency of a main drinking water treatment plant in Geneva, Switzerland, in removing microplastics and synthetic fibers. The results show that 70% of microplastics are retained during sand filtration and the total removal rate is 97% after activated carbon filtration.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
E. Crayol, F. Huneau, E. Garel, A. Mattei, S. Santoni, V. Pasqualini, V. Re
Summary: This study proposes the addition of socio-economic data to hydrogeological investigations to identify pollution sources linked to human activities at a watershed scale. The research conducted in the Biguglia lagoon plain in France showed that both agricultural and domestic sources contribute to pollution in the water bodies. Socio-hydrogeological investigations proved to be an efficient tool to tackle anthropogenic pollution and protect Mediterranean groundwater-dependent ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Mathias Diedhiou, Seyni Ndoye, Helene Celle, Serigne Faye, Stefan Wohnlich, Philippe Le Coustumer
Summary: This study investigates the quality of groundwater in West central Senegal and assesses its suitability for drinking and irrigation purposes. Results show that the groundwater has neutral to slightly alkaline pH values and most samples are suitable for drinking and irrigation. However, some samples exceed the fluoride guideline for drinking water.
Article
Water Resources
Seyni Ndoye, Mathias Diedhiou, Helene Celle, Serigne Faye, Mohammed Baalousha, Philippe Le Coustumer
Summary: Seawater intrusion is a serious problem in coastal aquifers in Senegal, leading to deterioration in water quality. The study aims to identify the zones of degraded water quality by analyzing the chemical composition of groundwater and geochemical processes. The results show that the groundwater is highly heterogeneous, with varying pH, total dissolved solids, and electrical conductivity values. Water-rock interaction and evaporation processes regulate the chemistry of the groundwater.
FRONTIERS IN WATER
(2023)
Meeting Abstract
Radiology, Nuclear Medicine & Medical Imaging
Serge Battu, Tarek Sayde, Omar El Hamoui, Gaetane Lespes, Philippe Barthelemy, Philippe Le Coustumer, Bruno Alies, Arnaud Pothier, Fabrice Lalloue, Gaelle Begaud
NUCLEAR MEDICINE AND BIOLOGY
(2022)