Preprints
There are 4575 Preprints listed.
The linked complexity of coseismic and postseismic faulting revealed by seismo-geodetic dynamic inversion of the 2004 Parkfield earthquake
Published: 2024-04-26
Subjects: Physical Sciences and Mathematics
Several regularly recurring moderate-size earthquakes motivated dense instrumentation of the Parkfield section of the San Andreas fault, providing an invaluable near-fault observatory. We present a seismo-geodetic dynamic inversion of the 2004 Parkfield earthquake, which illuminates the interlinked complexity of faulting across time scales. Using fast-velocity-weakening rate-and-state friction, [...]
An analysis of the dynamic range of Distributed Acoustic Sensing for Earthquake Early Warning
Published: 2024-04-26
Subjects: Geophysics and Seismology
Owing to its deployment and sensing characteristics, Distributed Acoustic Sensing (DAS) has been touted as a promising technology for low-cost and low-latency Earthquake Early Warning (EEW). While preliminary experiments conducted by several research groups have yielded encouraging results, it must be acknowledged that these EEW feasibility studies were performed only on low-magnitude events. [...]
Mapping microplastic movement: A phase diagram to predict microplastics modes of transport
Published: 2024-04-26
Subjects: Civil and Environmental Engineering
Microplastics pose numerous threats to aquatic environments, yet general understanding of the mechanisms governing their transport remains limited. Drawing upon research on natural sediment provides a valuable resource to address this knowledge gap. One key dimensionless number used to describe sediment transport is the transport stage, referring to the ratio between the fluids shear velocity and [...]
What triggers individual climate actions in different neighbourhoods? Individual, collective, cultural, and socio-structural factors
Published: 2024-04-25
Subjects: Environmental Studies
This paper takes a multi-perspective approach to understand drivers and barriers of climate action on the neighbourhood level in a selection of European neighbourhoods. The starting point for the analysis is the assumption that actions on the level of citizens to protect the climate are most motivating and promising, when conducted jointly within established social systems like neighbourhoods. [...]
A Review of the Migration of Hydrogen from the Planetary to Basin Scale
Published: 2024-04-24
Subjects: Physical Sciences and Mathematics
The occurrence of natural hydrogen and its sources have been reviewed extensively in the literature over the last few years, with current research across both academia and industry focused on assessing the feasibility of utilising natural hydrogen as an energy resource. However, gaps remain in our understanding of the mechanisms responsible for the large-scale transport of hydrogen and migration [...]
Numerical simulation of the 2D trajectory of a non-buoyant fluid parcel under the influence of inertial oscillation
Published: 2024-04-24
Subjects: Atmospheric Sciences, Fluid Dynamics, Numerical Analysis and Computation, Numerical Analysis and Scientific Computing, Oceanography
The trajectory of non-buoyant fluid parcels under the influence of inertial oscillations is a pivotal phenomenon in geophysical fluid dynamics, impacting processes such as tracer transport, pollutant dispersion, and the dynamics of marine organisms. This study presents a comprehensive numerical investigation of the two-dimensional trajectory of a non-buoyant fluid parcel subjected to inertial [...]
THE STATUS OF NOISE POLLUTION OF SUST CAMPUS, SYLHET, BANGLADESH: A GIS-BASED NOISE MAPPING
Published: 2024-04-24
Subjects: Public Health
This study investigates the status of noise pollution at Shahjalal University of Science and Technology (SUST) campus in Sylhet, Bangladesh, employing a GIS-based approach to map and analyze noise levels across different areas of the campus. The research was motivated by the growing concern over environmental noise as a public health issue, particularly in educational settings, where it can [...]
High–precision determination of carbon stable isotope in silicate glasses by secondary ion mass spectrometry: Evaluation of international standards
Published: 2024-04-24
Subjects: Analytical Chemistry, Geochemistry
Secondary ion mass spectrometry (SIMS) has been used for isotope analysis of volatile components dissolved in silicate melts for decades. However, carbon in situ stable isotope analysis in natural silicate glasses has remained particularly challenging, with the few published attempts yielding high uncertainties. In this context, we characterized 31 reference silicate glasses of basaltic and [...]
Quantifying water availability in basins holding the majority of global lithium resources
Published: 2024-04-24
Subjects: Earth Sciences, Hydrology, Physical Sciences and Mathematics
Demand for lithium is expected to increase by as much as 40 times over the coming decades. More than half the world’s lithium resources are found in brine aquifers at the intersection of Chile, Argentina, and Bolivia. As lithium exploration increases, accurate estimates of water availability are critical for water management decisions, particularly in this region home to communities and [...]
Personal Values Inform Student Preference for Household Toilet Systems That Use Human ‘Waste’ as a Natural Resource
Published: 2024-04-24
Subjects: Environmental Studies
This study contributes to understanding pro-environmental behavior in toilet system adoption by examining the core values that inform decision-making processes. Undergraduates participated in an educational module on conventional and alternative wastewater systems, followed by composing essays envisioning their ideal toilet system for a future home. Qualitative analysis of responses established a [...]
The application of MEMS seismometers to regional-scale passive seismology: a case study of the Sercel WiNG nodes.
Published: 2024-04-24
Subjects: Physical Sciences and Mathematics
Micro ElectroMechanical Systems (MEMS) accelerometers have become increasingly common in geophysical studies. Despite this, no work has been done to assess the suitability of an array of MEMS sensors to low-frequency, regional-scale passive seismic studies. Consequently, a month’s-long deployment of twenty MEMS-based Sercel WING nodes, two Güralp CMG-ESPCDS and one 4.5 Hz geophone-Reftek system [...]
Evaluation of the METRIC and TSEB remote sensing evapotranspiration models in the floodplain area of the Thaya and Morava Rivers
Published: 2024-04-24
Subjects: Hydrology, Other Earth Sciences, Other Forestry and Forest Sciences
Study region: Floodplain ecosystem region at the confluence of the Morava and Thaya Rivers, Czech Republic. Study focus: Accurate determination of actual evapotranspiration (ETa) is essential for understanding surface hydrological conditions. The aim of this study was to evaluate two remote sensing models, METRIC and TSEB, for estimating ETa and energy fluxes in two ecosystems using the eddy [...]
Limited role of discharge in global river plastic transport
Published: 2024-04-23
Subjects: Hydrology, Sustainability, Water Resource Management
River plastic transport has been assumed to be driven by river discharge, although observational data does often not support this. We propose a new perspective that describes plastic transport as function of plastic availability and transport capacity. Plastic transport is under most circumstances driven by plastic availability, which is largely disconnected from river discharge. However, when [...]
Dynamics of Aggregates and Sinking Carbon Fluxes in a Turbulent Ocean
Published: 2024-04-23
Subjects: Oceanography, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
The sinking of particulate matter from the upper ocean dominates the export and sequestration of organic carbon by the biological pump, a critical component of the Earth's carbon cycle. Controls on carbon export are thought to be driven by ecological processes that produce and repackage sinking biogenic particles. Here, we present observations during the demise of the Northeast Atlantic Ocean [...]
Simulated sea surface temperatures around New Zealand from 1982-2015 compared to three ground truth datasets
Published: 2024-04-23
Subjects: Earth Sciences, Physical Sciences and Mathematics
In this brief note, I show the extent of global warming, as exemplified by sea surface temperature - SST - around New Zealand from 1982-2015. We use 16 members of the UKESM historical simulations from the sixth Assessment Report of the Intergovernmental Panel On Climate Change. These model data are compared to ground truth data from three observational datasets. All data is plotted with respect [...]