Preprints
There are 4718 Preprints listed.
The nature of the proximal volcaniclastic materials from the 2021 eruption Fukutoku-Oka-no-Ba in the Izu-Bonin arc.
Published: 2023-01-31
Subjects: Earth Sciences, Geology, Volcanology
Fukutoku-Oka-no-Ba is a submarine volcano located at 24°17.1′N/141°28.9′E in the Izu–Bonin–Mariana arc, and is one of the most active volcanoes in Japan. This volcano produced an explosive eruption in August 2021 that generated a large amount of volcaniclastic material, some of which drifted westward to Japan and the coastal area of East Asia as a pumice raft. The pumice clasts that drifted for [...]
Surface bacterioplankton community structure crossing the Antarctic Circumpolar Current Fronts
Published: 2023-01-31
Subjects: Earth Sciences, Environmental Microbiology and Microbial Ecology Life Sciences
The Antarctic Circumpolar Current (ACC) is the major current in the Southern Ocean, isolating the warm stratified subtropical waters from the more homogeneous cold polar waters. The ACC flows from west to east around Antarctica and generates an overturning circulation by fostering deep-cold water upwelling and the formation of new water masses, affecting the Earth's heat balance and the global [...]
Climatic and cave setting influences on drip water fluorescent organic matter over an annual cycle in Northwestern Spain and implications for fluorescent laminations in stalagmites
Published: 2023-01-31
Subjects: Physical Sciences and Mathematics
Speleothem fluorescence may elucidate past vegetation dynamics, while microscale fluorescent laminations can provide annually resolved chronology. However, the origin of speleothem fluorescence and the mechanism responsible for the formation of micrometer scale fluorescent lamination in stalagmites, are not well constrained by monitoring studies. Here, we present results from a year-long monthly [...]
Quantifying Global-Warming Response of the Orographic Precipitation in a Typhoon Environment with Large-Eddy Simulations
Published: 2023-01-30
Subjects: Physical Sciences and Mathematics
The intense and moist winds in a tropical cyclone (TC) environment can produce strong mountain waves and substantially enhanced precipitation over complex terrain, yet few studies investigated how the orographic precipitation in a TC environment might respond to global warming. Here, we use large-eddy simulation to estimate the global warming-induced change in the precipitation over and near an [...]
Low Environmental Impact Remediation of Microplastics: Visible-Light Photocatalytic Degradation of PET Microplastics Using Bio-Inspired C,N-TiO2/SiO2 Photocatalysts
Published: 2023-01-30
Subjects: Engineering
Microplastics (MPs) are plastic particles of ≤5 mm with a ubiquitous presence in aquatic ecosystems. MPs harm marine life and can cause severe health problems for humans. Advanced oxidation processes (AOPs) that involve the in-situ generation of highly oxidant hydroxyl radicals can be an alternative to fight MPs pollution. Of all the AOPs, photocatalysis has been proven a clean technology to [...]
Numerical simulation of meteorite impact on basaltic lavas at Lonar Crater, India
Published: 2023-01-28
Subjects: Applied Mathematics, Astrophysics and Astronomy, Planetary Sciences
Lonar lake is a hypervelocity impact crater formed in a basaltic terrain of Deccan Traps in the state of Maharashtra, India. The crater has an approximate radius of 915 m and an average depth of about 137 m. Here we report the results of our numerical investigations aimed to elucidate the physical characteristics of incoming asteroid. For realistic simulation, we not only consider [...]
EUPollMap: The European atlas of contemporary pollen distribution maps derived from an integrated Kriging interpolation approach
Published: 2023-01-28
Subjects: Physical Sciences and Mathematics
Modern and fossil pollen data are widely used in paleoenvironmental research to characterise past environmental changes in a given location. However, their discrete and discontinuous nature can limit the inferences that can be made from them. In contrasts, deriving continuous spatial maps of the pollen presence from point-based datasets would enable more robust regional characterization of such [...]
Climate and health benefits of a transition from gas to electric cooking
Published: 2023-01-26
Subjects: Environmental Public Health, Environmental Studies
Household electrification is thought to be an important part of a carbon neutral future, and could also have additional benefits to adopting households such as improved air quality. However, the effectiveness of specific electrification policies in reducing total emissions and boosting household livelihoods remains a crucial open question in both developed and developing countries. We [...]
Leaving a plastic legacy: current and future scenarios for mismanaged plastic waste in rivers
Published: 2023-01-26
Subjects: Earth Sciences, Environmental Sciences
Mismanaged plastic waste (MPW) entering the riverine environment is concerning, given that most plastic pollution never reaches the oceans, and it has a severe negative impact on terrestrial ecosystems. However, significant knowledge gaps on the storage and remobilization of MPW within different rivers over varying timescales remain. Here we analyze the exposure of river systems to MPW to better [...]
SEDucate: Sedimentary Log Exercises for an Active Learning Environment
Published: 2023-01-26
Subjects: Education
Active learning in education has been shown to improve a students’ learning experience in higher education by focusing on a student-centered learning environment; however, development of realistic activities that replicate the complexity of real-world examples without being too complex for the novice learner is often challenging. Here we present SEDucate, a GIS plugin to build realistic [...]
3D SEISMIC ANALYSIS OF CENOZOIC SLOPE DEPOSITS AND FLUID FLOW PHENOMENA ALONG THE NIGERIAN TRANSFORM MARGIN
Published: 2023-01-26
Subjects: Education
High-resolution 3D seismic data covering an area of 2,845 km2 provide new insights on slope deposits and fluid-flow phenomena along the Nigerian Transform Margin, focusing on the ~ 2 km thick Cenozoic post-transform succession. The study documents large-scale mass-transport complexes, deep-water channel complexes, sediment waves, and a wide range of fluid flow phenomena. The focused fluid flow [...]
Deforestation as an anthropogenic driver of mercury pollution
Published: 2023-01-25
Subjects: Atmospheric Sciences, Biogeochemistry, Earth Sciences, Environmental Sciences
Deforestation reduces the capacity of the terrestrial biosphere to take up the toxic pollutant mercury (Hg) and enhances the release of secondary Hg from soils. The consequences of deforestation for Hg cycling are not currently considered by anthropogenic emissions inventories or specifically addressed under the global Minamata Convention on Mercury. Using global Hg modeling constrained by field [...]
Comparing Well and Geophysical Data for Temperature Monitoring within a Bayesian Experimental Design Framework
Published: 2023-01-25
Subjects: Earth Sciences, Hydrology, Physical Sciences and Mathematics, Water Resource Management
Temperature logs are an important tool in the geothermal industry. Temperature measurements from boreholes are used for exploration, system design, and monitoring. The number of observations, however, is not always sufficient to fully determine the temperature field or explore the entire parameter space of interest. Drilling in the best locations is still difficult and expensive. It is therefore [...]
VolcashDB: Volcanic ash particle image and classification database
Published: 2023-01-25
Subjects: Physical Sciences and Mathematics
Volcanic ash provides unique pieces of information that can help understand the progress of volcanic activity at the early stages of unrest and possible transitions towards different eruptive styles. Ash contains different types of particles that are indicative of eruptive styles and magma ascent-related processes. However, classifying ash particles into its main components is not [...]
Internal waves and bottom currents interactions around mesophotic reefs, southeastern Mediterranean
Published: 2023-01-25
Subjects: Environmental Monitoring, Geology, Marine Biology, Other Environmental Sciences, Sedimentology
Mesophotic reefs are found in water depths greater than 30m and as such are, for the most part, removed from most direct wave activity, notably in the Mediterranean Sea. There, they are protected from anthropogenic impact and serve as a possible refuge for marine biodiversity in a warming ocean. Yet, like any reef, their growth is modulated by the distribution of the sediment they produce and [...]