Preprints

There are 4677 Preprints listed.

An Immersive Hydroinformatics Framework with Extended Reality for Enhanced Visualization and Simulation of Hydrologic Data

Uditha Mudiyanselage, Eveline Gonzalez, Yusuf Sermet, et al.

Published: 2024-06-15
Subjects: Environmental Sciences, Graphics and Human Computer Interfaces, Hydrology

This study introduces a novel framework, with the use of Extended Reality (XR) systems in hydrology, particularly focusing on immersive visualization of hydrologic data for enhanced environmental planning and decision-making. The study details the shift from traditional two-dimensional data visualization methods in hydrology to more advanced XR technologies, including virtual and augmented [...]

A method for evaluating sediment-induced macroinvertebrate community composition changes in Idaho streams

Jason Williams, James Efta

Published: 2024-06-15
Subjects: Life Sciences

This study developed stream surface fine sediment < 2 mm (SF) and macroinvertebrate fine sediment biotic index (FSBI) benchmarks and an application framework to test for sediment-induced macroinvertebrate community composition changes in 1st-4th order Idaho streams. FSBI reference benchmarks were calculated as the 25th percentile FSBI value among reference sites within three ecoregion-based [...]

The Impact Measurement and Application of Conservation System (IMACS): A Review of a Framework for Impact Measurement, Application of Conservation and a Return to Sustainable Conditions

Vincent Dert

Published: 2024-06-15
Subjects: Physical Sciences and Mathematics

The Impact Measurement and Application of Conservation System (IMACS) was recently described in ten preprint papers. IMACS represents the first “first principals” based system for measurement of damaging and conserving impacts and the calculation of sustainabilities for products, services and individuals. IMACS distinguishes “participating” and “non-participating” individuals, organizations and [...]

Power optimisation of a rogue-wave energy device in a contraction

Onno Bokhove, Harvey Thompson

Published: 2024-06-14
Subjects: Physical Sciences and Mathematics

We consider optimisation of a wave-energy device placed in a contraction consisting of unidirectional wave-induced buoy motion coupled to a tubular electromagnetic generator. First, optimisation of the generator is achieved by using three induction coils instead of one. Second, geometric optimisation is explored for two contraction-shape parameters. Finally, we discuss the advantages of using [...]

Evolution of Fluvial Landscapes during the Eocene-Oligocene Transition in Central North America: Reconstructions from Toadstool Geologic Park, Nebraska, U. S. A.

Queenie Chang, Anjali M Fernandes, Michael T Hren, et al.

Published: 2024-06-14
Subjects: Earth Sciences, Sedimentology, Stratigraphy

Rivers drive geomorphic change at Earth’s surface by transporting sediment from mountains to sedimentary basins. They are sensitive to changes in water and sediment flux driven by tectonism, climatic perturbation and or volcanism. We characterized changes in fluvial landscapes during a major Cenozoic cooling event, the Eocene-Oligocene Transition (EOT) at 33.9 Ma. The EOT is characterized by a [...]

The direction of core soldification in asteroids: implications for dynamo generation.

Kathryn Dodds, James F. J. Bryson, Jerome Neufeld, et al.

Published: 2024-06-14
Subjects: Physical Sciences and Mathematics

Paleomagnetic studies of meteorites over the past two decades have revealed that the cores of multiple meteorite parent bodies, including those of certain chondritic groups, generated dynamo fields as they crystallised. However, uncertainties in the direction and mode of core solidification in asteroid-sized bodies have meant using the timings and durations of these fields to constrain parent [...]

Can Surface Water Color Accurately Determine Sediment Concentration and Grain Size? A Hyperspectral Imaging Study

Ruo-Qian Wang, David Bazzett

Published: 2024-06-14
Subjects: Education, Engineering

Water color changes are closely linked to variations in suspended sediment characteristics, motivating efforts to reliably determine sediment concentration and size through remote sensing. However, current turbidity measurement practices that rely on empirical correlations have not been rigorously tested in the lab and the past testing was limited to limited particle conditions, leading to a wide [...]

Paleohydrology of North American Catchments and Rivers at the Onset of the Eocene-Oligocene Climate Transition: Reconstructions from Fluvial Strata of the White River Group, Toadstool Geologic Park, Nebraska

Anjali M Fernandes, Michael T Hren, Queenie Chang, et al.

Published: 2024-06-14
Subjects: Earth Sciences, Geology, Sedimentology, Stratigraphy

Member of the Brule Formation of the White River Group at Toadstool Geologic Park in Nebraska. Our approach combined descriptive and quantitative methods to reconstruct river flow, sediment transport, channel dynamics, floodplain behavior, and catchment-scale moisture variability and ecosystem function. We found that rivers were ephemeral, with peak flow depths and widths of approximately 2.5 m [...]

Evaluating estimation methods for wildfire smoke and their implications for assessing health effects

Minghao Qiu, Makoto Kelp, Sam Heft-Neal, et al.

Published: 2024-06-13
Subjects: Environmental Health and Protection, Environmental Public Health, Environmental Sciences, Public Health

Growing wildfire smoke represents a substantial threat to air quality and human health in the US and across much of the globe. However, the impact of wildfire smoke on human health remains imprecisely understood, due to uncertainties in both the measurement of population wildfire smoke exposure and dose-response functions linking exposure to health. Here, we compare daily wildfire smoke-related [...]

Repurposing idle wells in the North German Basin as deep borehole heat exchangers

Nora Koltzer, Johannes Schoenherr, Maximilian Sporleder, et al.

Published: 2024-06-13
Subjects: Earth Sciences

This study investigates the feasibility to repurpose wells from gas produc-tion for geothermal closed loop application in the North German Basin (NGB). The objective is to extend the value-added chain of idle wells by re-completion as coaxial deep borehole heat exchangers as an efficient way to produce green energy without drilling new wells by saving the carbon emis-sion and costs of building a [...]

The migration of hydrogen in sedimentary basins

Bhavik Harish Lodhia, Luk Peeters

Published: 2024-06-13
Subjects: Engineering, Physical Sciences and Mathematics

Understanding the mechanisms of large-scale, subsurface hydrogen migration is essential for natural hydrogen exploration and for hydrogen storage assessment. The unique properties of hydrogen make that the timescales of hydrogen migration within geological basins vary from thousands of years to days. Within the shallow Earth, diffusive and advective transport mechanisms are dependent on a wide [...]

Wind and rain compound with tides to cause frequent and unexpected coastal floods

Thomas Thelen, Katherine A Anarde, Joel Casey Dietrich, et al.

Published: 2024-06-12
Subjects: Civil and Environmental Engineering

With sea-level rise, flooding in coastal communities is now common during the highest high tides. Floods also occur at normal tidal levels when rainfall overcomes stormwater infrastructure that is partially submerged by tides. Data describing this type of compound flooding is scarce and, therefore, it is unclear how often these floods occur and whether there are other non-tidal factors that [...]

Implementing machine learning to establish a relationship between coal ash spread and lined vs. unlined sites using publicly available data

May Ming, Sutharsika Kumar Kalaiselvi

Published: 2024-06-12
Subjects: Physical Sciences and Mathematics

The fuel combustion process within coal power plants causes a significant amount of waste, called coal ash, often stored in slush basins. Due to low maintenance and lack of proper regulations, coal ash ponds have a high tendency to contaminate nearby groundwater sources. Without a simple way to ascertain whether the drinking water and soil near a private residential area is contaminated, citizens [...]

Implementation of the Peruvian Earthquake Early Warning System

Pablo Lara, Hernando Tavera, Quentin Bletery, et al.

Published: 2024-06-12
Subjects: Artificial Intelligence and Robotics, Geophysics and Seismology

We present the implementation and testing of the seismological components of the Peruvian Earthquake Early Warning System (Sistema de Alerta Sísmica Peruano, SASPe). SASPe is designed to send alert messages to areas located within a given distance from the epicenter of large (magnitude ≥ 6.0) subduction earthquakes, with a first alert based on data available 3 seconds after the arrival [...]

Exploring coastal climate adaptation through storylines: Insights from Cyclone Idai in Beira, Mozambique

Henrique Moreno Dumont Goulart, Karin van der Wiel, Bart van den Hurk, et al.

Published: 2024-06-11
Subjects: Atmospheric Sciences, Climate, Earth Sciences, Environmental Engineering, Environmental Sciences, Hydraulic Engineering, Hydrology, Meteorology, Natural Resources Management and Policy, Water Resource Management

Coastal settlements, facing increasing flood risk from Tropical Cyclones (TCs) under climate change, need local and detailed climate information for effective adaptation. Analysis of historical events and their impacts provides such information. This study uses storylines to evaluate adaptation strategies, focusing on Cyclone Idai’s impact on Beira, Mozambique, under different climate conditions [...]

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