Article
Geology
Stoil Chapkanski, Kevin Jacq, Gilles Brocard, Cecile Vittori, Maxime Debret, Andrea U. De Giorgi, Daniele D'Ottavio, Enrico Maria Giuffre, Jean-Philippe Goiran
Summary: Sediment cores provide important sub-surface data for environmental research and engineering applications. The use of diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) allows for rapid and accurate quantification of mineral abundances in sediment cores. This study uses DRIFTS to calibrate short-wave infrared hyperspectral images (SWIR-HSIs) of a sediment core, converting point-specific DRIFTS measurements into a continuous record of mineral abundances. The method highlights sharp changes in mineral composition along the core, which are not captured by discontinuous DRIFTS measurements.
SEDIMENTARY GEOLOGY
(2022)
Article
Chemistry, Analytical
Enmanuel Cruz Munoz, Fabio Gosetti, Davide Ballabio, Sergio Ando, Olivia Gomez-Laserna, Jose Manuel Amigo, Eduardo Garzanti
Summary: In this study, a new method based on Raman hyperspectral imaging and chemometrics is proposed for the analysis of chemically heterogeneous surfaces of weathered minerals. The technique is tested using a pyrite sample with a heterogeneous surface consisting of different alteration products. Principal Component Analysis is used to evaluate data structure and identify weathering features, while Multivariate Curve Resolution-alternating least squares and K-means clustering are employed to identify specific chemical components of major and minor weathering phases, respectively. The method enables a semi-quantitative threshold-based characterization of chemical features and provides a visual representation of the phase distribution on the sample surface.
MICROCHEMICAL JOURNAL
(2023)
Article
Engineering, Multidisciplinary
Lukasz Pieszczek, Michal Daszykowski
Summary: This study explores the potential of near-infrared hyperspectral imaging for accurately assessing the size of polymer particles compared to traditional single point measurement methods. Hyperspectral imaging not only provides information about the spatial distribution of sample components, but also reveals changes in physical properties.
Article
Chemistry, Analytical
Emilio Catelli, Zelan Li, Giorgia Sciutto, Paolo Oliveri, Silvia Prati, Michele Occhipinti, Alessandro Tocchio, Roberto Alberti, Tommaso Frizzi, Cristina Malegori, Rocco Mazzeo
Summary: The new challenge in the investigation of cultural heritage is to obtain stratigraphical information without sampling. In this paper, a commercialized analytical set-up is used in combination with multivariate and multiblock data processing to analyze multilayered paintings. The instrument allows for elemental and molecular information from superficial to subsurface layers.
ANALYTICA CHIMICA ACTA
(2023)
Article
Food Science & Technology
Y. Dixit, M. Al-Sarayreh, C. R. Craigie, M. M. Reis
Summary: This study demonstrates a novel approach to develop global calibration models for predicting intramuscular fat (IMF) and pH across various red meat species and muscle types. These prediction models, developed using Partial Least Squares Regression (PLSR) and Deep Convolutional Neural Networks (DCNN), showed high accuracy in predicting pH and IMF values in red meat samples.
Article
Agronomy
Maylin Acosta, Isabel Rodriguez-Carretero, Jose Blasco, Jose Miguel de Paz, Ana Quinones
Summary: Visible and near-infrared hyperspectral imaging was used to determine the nutrient contents in persimmon leaves. The models based on partial least square regression achieved satisfactory results for nitrogen, phosphorous, calcium, magnesium, and boron, but lower prediction rates were attained for potassium, iron, copper, zinc, and manganese.
Article
Horticulture
Marius Ruett, Laura Verena Junker-Frohn, Bastian Siegmann, Jan Ellenberger, Hannah Jaenicke, Cory Whitney, Eike Luedeling, Peter Tiede-Arlt, Uwe Rascher
Summary: This study introduces a new method for assessing the health status of ornamental plants, using hyperspectral imaging technology combined with expert experience for plant performance monitoring. Reflectance in the green and red-edge regions of the spectrum was identified as crucial for classifying plants as healthy or stressed.
SCIENTIA HORTICULTURAE
(2022)
Review
Green & Sustainable Science & Technology
Wei Peng, Giovanni Beggio, Alberto Pivato, Hua Zhang, Fan Lue, Pinjing He
Summary: Near-infrared spectroscopy and hyperspectral imaging techniques combined with chemometric method have been applied to address challenges in anaerobic digestion plants, and can be used for monitoring and optimizing process parameters and evaluating quality.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Chemistry, Applied
Abolfazl Dashti, Judith Mueller-Maatsch, Emma Roetgerink, Michiel Wijtten, Yannick Weesepoel, Hadi Parastar, Hassan Yazdanpanah
Summary: The performance of visible-near infrared hyperspectral imaging (Vis-NIR-HSI) and shortwave infrared hyperspectral imaging (SWIR-HSI) combined with different classification and regression multivariate methods for meat authentication was evaluated. In Vis-NIR-HSI, the SVM and ANN-BPN models achieved higher accuracies (96% and 94%) in the prediction set compared to SWIR-HSI (88% and 89%). In terms of coefficient of determination (R2p) and root mean square error in prediction (RMSEP), Vis-NIR-HSI outperformed SWIR-HSI for different meat combinations.
Article
Environmental Sciences
Dennis D. Langer, Milica Orlandic, Sivert Bakken, Roger Birkeland, Joseph L. Garrett, Tor A. Johansen, Asgeir J. Sorensen
Summary: Hyperspectral imaging is a valuable technology for remote sensing, but its application in space is limited by the large amount of data it generates and the subsequent bottleneck in data transmission. To overcome this limitation, an on-board processing pipeline for the HYPSO-1 cube-satellite is developed, providing flexible image processing, reliability, and resilience. The performance of the pipeline, including processing time and compression rate, is analyzed, and the implications for the HYPSO-1 mission are discussed.
Article
Remote Sensing
Hamid Ghanbari, Dermot Antoniades
Summary: The particle size of lake sediments contains important environmental information and detecting its changes over time is crucial for understanding ecosystems and sedimentary processes. This study proposes a new method that utilizes a one-dimensional convolutional autoencoder and a one-dimensional convolutional neural network (CNN) for regression analysis, and successfully reconstructs particle size from hyperspectral images of lake sediment cores. The proposed CNN method outperforms the traditional random forest algorithm in terms of predictive accuracy.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2022)
Article
Food Science & Technology
Yan Hu, Youli Wu, Jie Sun, Jinping Geng, Rongsheng Fan, Zhiliang Kang
Summary: This study establishes a classification method for oolong tea using fluorescence hyperspectral technology (FHSI) combined with chemometrics. The results show that this method can accurately distinguish different types of oolong tea and identify key wavelengths affecting tea classification, providing a non-destructive and rapid method for future tea identification.
Review
Instruments & Instrumentation
Zhixin Wang, Peng Xu, Bohan Liu, Yankun Cao, Zhi Liu, Zhaojun Liu
Summary: This paper demonstrates the principle and practical applications of hyperspectral object detection, as well as discussing the challenges faced in this field. By summarizing the current research status of hyperspectral techniques and exploring the development of underwater hyperspectral techniques, the paper presents a conclusion of applications and future research directions. Various methods for underwater object detection with hyperspectral imaging are compared, highlighting the importance of these methods in the future of this technology.
Article
Astronomy & Astrophysics
M. van Noort, A. Chanumolu
Summary: This study introduces a data reduction method for the Microlensed Hyperspectral Imager (MiHI), which is based on a double-sided microlens array (MLA). By using a simplified model of the image formation process, the method is able to eliminate instrumentally induced artifacts to some extent. The study also fits an effective model of the instrument, which accurately reproduces the raw flat-field data and represents a critical first step in hyperspectral data reduction.
ASTRONOMY & ASTROPHYSICS
(2022)
Article
Spectroscopy
Jiaying Wang, Laijun Sun, Guojun Feng, Hongyi Bai, Jun Yang, Zhaodong Gai, Zhide Zhao, Guanghui Zhang
Summary: In this study, accurate detection of hard seeds in snap beans was achieved using hyperspectral imaging technology. By processing characteristic spectra and wavelengths, an intelligent detection model was established with a detection accuracy rate of 89.32%.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Geography, Physical
Nina Caf, Pierre Sabatier, Andrej Smuc, Nives Ogrinc, Matej Dolenec, William Rapuc, Doris Potocnik, Ulrich von Grafenstein, Maja Andric
Summary: This study investigates the long-term vegetation changes and sedimentary processes in the catchment area of Lake Planina pri jezeru in Slovenia over the past 13,000 years. The results reveal the impacts of climate warming, human activities, and vegetation succession on the environment.
JOURNAL OF QUATERNARY SCIENCE
(2023)
Article
Ecology
Erwan Messager, Charline Giguet-Covex, Elise Doyen, David Etienne, Ludovic Gielly, Pierre Sabatier, Mathilde Banjan, Anne-Lise Develle, Julien Didier, Jerome Poulenard, Andrea Julien, Fabien Arnaud
Summary: This study reconstructs the environmental history of the European Alpine region over the past 1800 years by analyzing sediments from Lake Aiguebelette. Using various analysis methods, including pollen, DNA, and fungal spores, the study provides insights into vegetation, land-use, and pastoral practices.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2022)
Review
Geosciences, Multidisciplinary
Pierre Sabatier, Jasper Moernaut, Sebastien Bertrand, Maarten Van Daele, Katrina Kremer, Eric Chaumillon, Fabien Arnaud
Summary: Event deposits in lake sediments provide valuable records of geodynamic and climatic natural hazards on multi-millennial timescales. Accurately identifying and dating these event deposits can improve hazard assessments and contribute to sustainable worldwide development.
Article
Geology
Mathilde Banjan, Christian Crouzet, Pierre Sabatier, Herve Jomard, Manon Bajard, Francois Demory, Anne-Lise Develle, Jean-Philippe Jenny, Bernard Fanget, Emmanuel Malet, Nathaniel Findling, Philippe Alain, Julien Didier, Vincent Bichet, Sylvain Clapot, Erwan Messager
Summary: In the French northwest Alps, the presence of mass-transport deposits in several lakes suggests that they may have been triggered by earthquakes and rockfall events during the Younger Dryas - Early Holocene transition. This study also supports the hypothesis that rapid climate change and glacial retreat could contribute to increased seismic activity.
Correction
Chemistry, Multidisciplinary
Charles Mottes, Pierre Sabatier, Olivier Evrard, Nathalie Cottin, Fabien Arnaud, Irina Comte, Christine Piot, Magalie Lesueur-Jannoyer, Eric Lichtfouse, Jerome Poulenard
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Multidisciplinary Sciences
Stephane Guedron, Christophe Delaere, Sherilyn. C. Fritz, Julie Tolu, Pierre Sabatier, Anne-Lise Devel, Carlos Heredia, Claire Verin, Eduardo Q. Alves, Paul A. Baker
Summary: A reevaluation of the middle-to-late Holocene water levels in Lake Titicaca reveals a prolonged low stand during the middle Holocene, followed by a rapid rise starting around 1800 BCE and reaching its highest levels after 1600 CE. These lake-level increases coincide with major sociopolitical changes reported by archaeologists, particularly the emergence of the Tiwanaku culture after a significant rise in water levels at the end of the Formative Period in 500 CE.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Geochemistry & Geophysics
Floriane Guillevic, Magali Rossi, Anne-Lise Develle, Lorenzo Spadini, Jean M. F. Martins, Fabien Arnaud, Jerome Poulenard
Summary: Mining and smelting activities have generated significant amounts of potentially toxic trace elements in mine and metallurgical wastes. A study was conducted on an abandoned mining and smelting site in France to characterize the legacy and dispersion of lead (Pb) contamination. The most severe Pb contamination was found near the slag heaps and along transportation paths, with a limited contamination gradient downhill. The presence of different Pb-bearing phases was observed, with the most stable and widespread forms being Pb-bearing Mn (hydr-)oxides.
APPLIED GEOCHEMISTRY
(2023)
Article
Environmental Sciences
Victor Frossard, Pierre Sabatier, Rosalie Bruel, Chloe Vagnon, Nathalie Tissot, Nadine Curt-Grand-Gaudin, Marie-Elodie Perga
Summary: This study aimed to distinguish the influences of tourism and climate change on a mountain lake by combining paleolimnological and present ecological data. The results showed that while climate control has historically dominated lake biological production, tourism development and environmental degradation have recently increased their impact. This highlights the importance of local management in preserving the ecological integrity of mountain lakes.
Article
Geography, Physical
Eleonora Cagliero, Laure Paradis, Niccolo Marchi, Zsuzsa Lisztes-Szabo, Mihaly Braun, Katalin Hubay, Pierre Sabatier, Milic Curovic, Velibor Spalevic, Renzo Motta, Emanuele Lingua, Walter Finsinger
Summary: We present the first high-resolution Holocene pollen, plant-macrofossil, and charcoal records from the upper-montane zone in the central Dinaric Alps. Our study explores long-term ecosystem responses to variations in climate, fire disturbances and land use, as well as the legacy effects of past environmental changes. We found that different tree species in the region show varying sensitivities to summer temperatures, biomass burning, and human impact, indicating the complex interactions between climate, fire, and land use in shaping forest composition and dynamics.
Article
Environmental Sciences
Charline Giguet-Covex, Manon Bajard, Wentao Chen, Kevin James Walsh, Pierre-Jerome Rey, Erwan Messager, David Etienne, Pierre Sabatier, Francesco Gentile Ficetola, Ludovic Gielly, Claire Blanchet, Christophe Guffond, Patricia Chiquet, Fabien Arnaud, Jerome Poulenard
Summary: By integrating archaeology, history, and ancient DNA records, we reconstructed the nature and intensity of agropastoral activities in the Northwestern French Alps. Our study revealed the significant influence of human activities on plant community composition and erosion, particularly in areas above 2000 meters.
REGIONAL ENVIRONMENTAL CHANGE
(2023)
Article
Environmental Sciences
Vincent Herve, Pierre Sabatier, Josie Lambourdiere, Jerome Poulenard, Pascal Jean Lopez
Summary: Land use change and anthropogenic forcing can alter sediment transport, biodiversity, and ecosystem functions in coastal ecosystems. This study evaluated the shifts in eukaryotic communities in a marine core sample, and found that agricultural activities, such as pesticide use, have long-term and species-specific implications for microeukaryotic coastal communities on a tropical island.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Pierre Lefebvre, Arnaud Mangeret, Alkiviadis Gourgiotis, Pascale Louvat, Pierre Le Pape, Pierre Sabatier, Olivier Diez, Charlotte Cazala, Jerome Gaillardet, Guillaume Morin
Summary: Understanding the U cycle at the watershed scale is crucial for managing contaminated areas and conducting research on ore formation processes and paleoenvironments. Through chemical, isotopic, and speciation analyses, we investigated the U cycle in the U-rich Lake Negre watershed in France. Our findings reveal that U(VI) originates from U-rich rock fractures and is transported in dissolved forms, with wetlands and meadow soils acting as intermediate sinks. Additionally, U is supplied to the lake through physical erosion of soil, and sedimentation in the lake reduces U(VI) to U(IV), resulting in high sedimentary U concentrations.
ACS EARTH AND SPACE CHEMISTRY
(2023)
Article
Geology
R. Gastineau, P. Sabatier, S. C. Fabbri, F. S. Anselmetti, P. Roeser, N. Findling, M. Sahin, S. Gunduz, F. Arnaud, S. O. Franz, N. D. Unsal, J. de Sigoyer
Summary: Using lake-sediment cores, this study identified and characterized five different types of event deposits in Lake Iznik, revealing the lateral variations in earthquake-induced deposits. The occurrence of these event deposits was found to depend on the distance from the sediment destabilizations to the coring site. The study also showed that ground-motion parameters might influence the type of event deposit.
DEPOSITIONAL RECORD
(2023)
Article
Environmental Sciences
Floriane Guillevic, Fabien Arnaud, Magali Rossi, Jerome Poulenard, Pierre Sabatier, Anne-Lise Develle, Cecile Quantin, Gael Monvoisin
Summary: Metal-rich fumes released during ore smelting result in widespread anthropogenic contamination. Environmental archives such as lake sediments provide records of deposition on lake and terrestrial surfaces from ancient mining and smelting activities. However, little is known about the buffering effect of soils in remobilizing metals through runoff and erosion, leading to persistent contamination long after metallurgical activities have ceased. This study focuses on assessing long-term remobilization in a mountainous catchment area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
