Article
Marine & Freshwater Biology
Dongxue Li, Zhiqiang Gao, Debin Song
Summary: This study investigated the relationship between green tide expansion and environmental factors from 2007 to 2020 in the southern Yellow Sea. It was found that the initial scale of a green tide did not necessarily influence the outbreak scale; green tides were more likely to occur on a large scale if they were observed earlier in the initial phase, if the sea surface temperature was lower, and if precipitation was timely and abundant.
ESTUARINE COASTAL AND SHELF SCIENCE
(2021)
Article
Geography, Physical
Qixian Zhou, Jian Yin, Xiaoqiang Yang, Qiong Chen, Yixuan Xie, Huodai Zhang
Summary: The research provides insights into the hydroclimate dynamics of the South China Sea through high-resolution records of the past 175 ka BP. The study reveals the variability of sea surface temperature and salinity patterns, as well as the influence of monsoon-driven processes on oxygen isotopes in the region. The findings suggest a connection between heavy precipitation in the southeastern South China Sea and enhanced convection intensity and strengthened summer monsoons.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Geochemistry & Geophysics
Ebenezer S. Nyadjro, Zhankun Wang, James Reagan, Just Cebrian, Jay F. Shriver
Summary: The study found that Hurricane Michael had significant impacts on the upper ocean in the Florida Panhandle, leading to a decrease in sea surface temperature, an increase in chlorophyll-a concentration, deepening of the mixed layer, and changes in sea surface salinity. The effects of strong winds and rainfall from the hurricane on the ocean were complex and localized, with upwelling causing an increase in sea surface salinity while enhanced precipitation and river runoff resulted in a decrease.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Geochemistry & Geophysics
Thibault Taillade, Marcus Engdahl, Diego Fernandez
Summary: In this study, we evaluate the sensitivity of synthetic aperture radar (SAR) to sea surface salinity (SSS), focusing on the variations in dielectric properties and their effects on normalized radar cross section (NRCS) and copolar phase difference (CPD). We also explore the salinity sensitivity to CPD, which has not been previously investigated in the literature.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2023)
Article
Environmental Sciences
Lanjie Zhang, Yifan Zhang, Xiaobin Yin
Summary: We propose a deep neural network (DNN) retrieval model for sea surface salinity (SSS) in coastal regions, demonstrating its capability to retrieve SSS. Rain filters are applied to Aquarius observation data and SSS data to handle heavy rainfall. Using Aquarius V5 L2 observation data and HYCOM SSS data, the DNN model is trained and optimized using grid search and 10-fold cross-validation. The performance of the proposed DNN model is evaluated and compared with different salinity data sources, showing better performance in coastal regions than the Aquarius official models.
REMOTE SENSING OF ENVIRONMENT
(2023)
Article
Geochemistry & Geophysics
Jacqueline Boutin, Jean-Luc Vergely, Fabrice Bonjean, Xavier Perrot, Yiwen Zhou, Emmanuel P. Dinnat, Roger H. Lang, David M. Le Vine, Roberto Sabia
Summary: The accuracy of SSS retrieved from L-Band radiometer measurements depends on the reliability of the dielectric constant model. Two new parametrizations based on SMOS satellite measurements and laboratory measurements by George Washington University were found to have better agreement with brightness temperature variations compared to previous parametrizations. However, there is still uncertainty, especially below 10 degrees C.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2023)
Article
Engineering, Electrical & Electronic
Hailiang Lu, Hao Li, Yayun Cheng, Dong Zhu, Yinan Li, Pengju Dang, Rongchuan Lv, Rui Yu, Yongjie Fu
Summary: The paper introduces an alternative solution for monitoring sea surface salinity in coastal zones using an L-band phased array radiometer from a small UAV. By simplifying the system and introducing two calibration methods, experimental results show that this solution performs well at low pointing and scanning angles.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Yiwen Zhou, Roger H. Lang, Emmanuel P. Dinnat, David M. Le Vine
Summary: In order to improve the accuracy and stability of retrieving sea surface salinity from satellite data, researchers have developed a physics-based model function based on new dielectric measurements of seawater, which has shown better performance in the production of global salinity maps.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Geography, Physical
F. Pilade, I. Vasiliev, D. Birgel, F. Dela Pierre, M. Natalicchio, A. Mancini, G. Carnevale, R. Gennari
Summary: This study uses alkenone-based proxies and other data to reconstruct surface water temperatures and paleoenvironmental conditions in the Mediterranean basin during the late Miocene to early Pliocene period. The results suggest that the Mediterranean basin gradually returned to marine conditions before the end of the late Miocene, and fully marine conditions were established in the early Pliocene. This highlights the importance of alkenone-based proxies in environmental reconstruction, especially when fossil records of primary producers are limited.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geochemistry & Geophysics
David M. Le Vine, Emmanuel P. Dinnat
Summary: Passive microwave remote sensing of sea surface salinity from space is done in the 27 MHz wide spectral window at 1.413 GHz, showing the need for better accuracy by adding measurements at more frequencies. The accuracy of salinity remote sensing is not only dependent on frequency, but also on other parameters of the ocean surface such as water temperature and roughness.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Geochemistry & Geophysics
Xuchen Jin, Xianqiang He, Yan Bai, Difeng Wang, Qiankun Zhu, Fang Gong, Delu Pan
Summary: This study proposes an approach to improve the spatial resolution of sea surface salinity (SSS) in estuarine areas through the combination of microwave and ocean color data. The model establishes a relationship between SSS and normalized sea surface emissivity and colored dissolved organic matter (CDOM), which is validated through in situ measurements. The results show enhanced SSS at high resolution compared to low resolution, improving the accuracy of satellite SSS observations over estuarine areas.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2022)
Article
Geochemistry & Geophysics
Milad Asgarimehr, Mostafa Hoseini, Maximilian Semmling, Markus Ramatschi, Adriano Camps, Hossein Nahavandchi, Rudiger Haas, Jens Wickert
Summary: This study investigates the effects of rain on global navigation satellite system reflectometry (GNSS-R) for the first time. Rain is found to affect surface roughness and salinity, showing a systematic relationship. LHCP observations demonstrate higher sensitivity to rain, and reflective measurements provide information on surface height and salinity.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Geochemistry & Geophysics
Jacqueline Boutin, Jean-Luc Vergely, Emmanuel P. Dinnat, Philippe Waldteufel, Francesco D'Amico, Nicolas Reul, Alexandre Supply, Clovis Thouvenin-Masson
Summary: By studying the dielectric constant parametrization and making slight modifications to the ST model, systematic differences in SMOS data can be reduced.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2021)
Article
Geochemistry & Geophysics
Eugeni Barkan, Ekaterina Fishman, Hagit P. Affek
Summary: Closed-basin lakes show strong response to climate-related changes in water balance, making lake water isotopic composition a sensitive indicator of paleo-hydrological conditions. The effect of salinity on δO-18 has been well studied, but not for the emerging proxy O-17(excess). This study finds that while both δO-18 and δO-17 are sensitive to salinity, O-17(excess) remains unaffected.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geography, Physical
Shichen Tao, Kefu Yu, Hongqiang Yan, Huiling Zhang, Luo Wang, Patrick Rioual, Qi Shi, Zhongzhou Huang, Tegu Chen
Summary: This study found that sea-level in the South China Sea experienced a slight decrease from 1850 to 1900, and has been continuously rising since 1900. The study also revealed the indirect influence of ENSO and human activities on sea-level, rainfall, and salinity in the South China Sea.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Graham A. Shields, Robin A. Strachan, Susannah M. Porter, Galen P. Halverson, Francis A. Macdonald, Kenneth A. Plumb, Carlos J. de Alvarenga, Dhiraj M. Banerjee, Andrey Bekker, Wouter Bleeker, Alexander Brasier, Partha P. Chakraborty, Alan S. Collins, Kent Condie, Kaushik Das, David A. D. Evans, Richard Ernst, Anthony E. Fallick, Hartwig Frimmel, Reinhardt Fuck, Paul F. Hoffman, Balz S. Kamber, Anton B. Kuznetsov, Ross N. Mitchell, Daniel G. Poire, Simon W. Poulton, Robert Riding, Mukund Sharma, Craig Storey, Eva Stueeken, Rosalie Tostevin, Elizabeth Turner, Shuhai Xiao, Shuanhong Zhang, Ying Zhou, Maoyan Zhu
Summary: This article reviews the processes that led to the current geological timescale and proposes revisions for subdividing time before 720 million years ago. The assessment of Precambrian rock records suggests that using rock-based concepts for subdivision may require only modest deviation from current chronometric boundaries.
JOURNAL OF THE GEOLOGICAL SOCIETY
(2022)
Article
Geology
Paul Enos, Elias Samankassou
Summary: The Lofer cyclothems of the Alpine Upper Triassic share many similarities with Holocene sediments of Florida Bay, including symmetrical cycles and similar depositional textures and structures. These similarities suggest that sedimentation patterns at a small scale may be independent of the global climate regime, providing important insights into the Triassic depositional environment and future evolution of modern environments.
Review
Biochemical Research Methods
Jeroen A. J. M. van de Water, Romie Tignat-Perrier, Denis Allemand, Christine Ferrier-Pages
Summary: Corals play important ecological and economic roles, providing habitat for species and contributing to coastal protection, fisheries, and tourism. Their biotechnological potential, especially in drug discovery and bioenergy, is increasingly recognized. However, corals are facing threats from climate change and pollution, and researchers are evaluating biotechnological approaches to enhance their resilience.
CURRENT OPINION IN BIOTECHNOLOGY
(2022)
Article
Geochemistry & Geophysics
M. Brodbeck, S. H. McClenaghan, B. S. Kamber, P. B. Redmond
Summary: Porphyry deposits are important sources of copper, molybdenum, and gold, and also contain various minor and trace metal(loid)s. This study investigates the distribution of these metal(loid)s in a complete vein paragenetic series from the Bingham Canyon porphyry deposit. The results show that different sulfide minerals contain different concentrations of metal(loid)s, and the abundance of sulfides declines over the intrusion sequence. Selective partitioning of metal(loid)s between chalcopyrite and bornite is observed.
Review
Geochemistry & Geophysics
Merilie A. Reynolds, Balz S. Kamber, Cora A. McKenna, Marcus Oelze, Sarah A. Gleeson
Summary: The composition of minor and trace elements in minerals is important for understanding geological processes, and the technique of laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) is commonly used for element mapping. However, there are limitations in spatial resolution and detection limit when using sequential mass analyzers. In this study, the novel Aerosol Rapid Introduction System (ARIS) was tested to overcome these limitations and achieve fast, high spatial resolution mapping of minor and trace elements in pyrite and marcasite. The results showed that the ARIS method successfully mapped trace elements at high resolution, with good repeatability and reduced experiment time.
AMERICAN MINERALOGIST
(2023)
Article
Geochemistry & Geophysics
Robert B. Emo, Balz S. Kamber, Hilary Downes, David T. Murphy, John T. Caulfield
Summary: This study investigates the mineralogy and geochemistry of mafic granulite xenoliths from eastern Australia and the Kola Peninsula, Russia, and finds that the lower continental crust is composed of refractory material, undifferentiated material, and felsic or metapelitic material. A new estimate for the average composition of the lower continental crust is calculated, taking into account these components.
Article
Geochemistry & Geophysics
Marco Andres Acevedo Zamora, Balz Samuel Kamber
Summary: Slide scanners are rapid optical microscopes used in biomedical imaging to generate whole-slide images of tissue samples. The availability of these images has led to the development of advanced image analysis software, benefiting drug development and pathology research. Slide scanners are now being modified to enable polarised petrographic microscopy by simulating stage rotation.
Article
Geosciences, Multidisciplinary
Manga Owona Gaspard William, Bessong Moise, Mioumnde Arthur Paterne, Mbesse Cecile Olive, Bapowa Laouna Carole, Kusi Micheline Michelle-Alexia Ngum, Meying Arsene, Ekomane Paulin Emile, Samankassou Elias
Summary: This paper focuses on the lithostratigraphy and the palaeoenvironmental evolutions of the Babouri-Figuil Basin depositional system. The study reveals that the basin's sedimentary formations were deposited in a lacustrine/fluvial/deltaic sedimentary environment, which were influenced by volcanic events and hydrothermal fluid circulation.
JOURNAL OF AFRICAN EARTH SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Robert W. Schlegel, Jean-Pierre Gattuso
Summary: In situ data collection in the Arctic has improved through international collaboration, but sampling in Arctic fjords remains challenging. To address this, a dataset was created from publicly available in situ data from seven study sites in Svalbard and Greenland, ensuring interoperability. The dataset was uploaded to PANGAEA for future accessibility and reusability.
EARTH SYSTEM SCIENCE DATA
(2023)
Article
Geosciences, Multidisciplinary
Jean-Pierre Gattuso, Samir Alliouane, Philipp Fischer
Summary: The Arctic Ocean is experiencing high rates of ocean warming and acidification, which have significant impacts on marine organisms and ecosystems. However, data on the carbonate system in the Arctic region are limited. This study presents the first high-frequency and multi-year dataset of salinity, temperature, CO2 partial pressure, and pH in a coastal site in Kongsfjorden, Svalbard. The findings indicate seasonal variations in the saturation state of calcium carbonate and a consistent lower pCO(2) than atmospheric CO2, suggesting this site acts as a sink for atmospheric CO2.
EARTH SYSTEM SCIENCE DATA
(2023)
Article
Biochemistry & Molecular Biology
Alice C. A. Blanckaert, Tom Biscere, Renaud Grover, Christine Ferrier-Pages
Summary: A study found that the hard coral Turbinaria reniformis and the soft coral Sarcophyton glaucum have different physiological responses to different nitrogen to phosphorus ratios. Hard corals are more sensitive to the ratio, while soft corals only uptake when nitrogen and phosphorus are present simultaneously. This study helps predict how different coral species will respond to nitrogen to phosphorus ratios under eutrophic conditions.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Environmental Sciences
Phillip Williamson, Jean-Pierre Gattuso
Summary: Mangrove forests, seagrass meadows and tidal saltmarshes are vegetated coastal ecosystems that store large quantities of carbon. Protecting and restoring coastal blue carbon ecosystems can reduce greenhouse gas emissions and increase carbon dioxide absorption and storage. Restoration of coastal vegetation has benefits for climate adaptation, coastal protection, food provision and biodiversity conservation.
FRONTIERS IN CLIMATE
(2022)
Article
Ecology
Chloe Carbonne, Steeve Comeau, Phoebe T. W. Chan, Keyla Plichon, Jean-Pierre Gattuso, Nuria Teixido
Summary: The study shows that ocean warming and acidification have negative impacts on the larval and recruit development of the Mediterranean azooxanthellate coral Astroides calycularis, with successful settlement and metamorphosis under warmer temperatures, while low pH delays metamorphosis and affects recruit growth.
Article
Multidisciplinary Sciences
Albert Pessarrodona, Jorge Assis, Karen Filbee-Dexter, Michael T. Burrows, Jean-Pierre Gattuso, Carlos M. Duarte, Dorte Krause-Jensen, Pippa J. Moore, Dan A. Smale, Thomas Wernberg
Summary: This study provides global predictions of seaweed habitat productivity, using data from over 400 sites and finding a strong correlation between seaweed productivity and climatic variables. Seaweed forests exhibit exceptionally high per-area production rates, being more than 10 times higher than coastal phytoplankton.
Review
Multidisciplinary Sciences
S. K. Marx, J-H May, T. Cohen, B. S. Kamber, H. A. McGowan, L. Petherick
Summary: Kati Thanda-Lake Eyre is the largest global dust hotspot in the Southern Hemisphere, with satellite mapping showing that dust from the region is transported widely across the Tasman Sea, South Pacific Ocean, Southern Ocean, Pilbara/Kimberly, and Indian Ocean. While dust emissions from the southern section of the lake are minimal today, evidence from palaeo-aeolian sediments suggests major dust deflation episodes occurred during the last glacial cycle. Estimations suggest that Kati Thanda-Lake Eyre generated a significant portion of Australia's dust load over the past 80 to 40 thousand years. Despite 80 years of research, there is still much to learn about the climate-landscape interactions and dust generation in the arid heart of Australia.
TRANSACTIONS OF THE ROYAL SOCIETY OF SOUTH AUSTRALIA
(2022)
