Preprints
There are 7999 Preprints listed.
Control of natural hazard events through emergency landscaping
Published: 2026-05-01
Subjects: Geomorphology, Nature and Society Relations, Physical and Environmental Geography
Humans reshape the surface of the Earth through efforts to protect people and places from natural hazards. While some hazard defences, such as river levees, are permanent infrastructure, other measures, such as wildfire fighting, are responsive: they occur while a hazard event is in progress, actively intervening in its behaviour to mitigate its impact. Deliberate, concurrent, mitigating [...]
Infiltration drives a Heavy–Tailed Distribution of Combined Sewer Overflow Spill Durations
Published: 2025-12-10
Subjects: Applied Statistics, Environmental Sciences, Hydraulic Engineering
Combined sewer overflows (CSOs) discharge untreated wastewater into natural water bodies during periods of excess sewer flow, posing environmental risks. Using ~ 4 million CSO spill events recorded by Event Duration Monitors across England (2020–2024), we characterize the statistical distribution of spill durations. We find that while spills exceeding four hours represent only 6.4 % of events, [...]
Research on Real-time Detection Method of Rice Diseases and Pests Based on Improved YOLOv10s Model
Published: 2026-04-26
Subjects: Bioresource and Agricultural Engineering
As one of the world's most important food crops, rice's yield and quality are largely threatened by pests and diseases, necessitating a highly accurate, fast-responding, and adaptable intelligent detection method to support pest and disease control and sustainable agricultural development. This paper addresses the problems of low accuracy, poor real-time performance, and sensitivity to occlusion [...]
Carboxyl-stabilized Mn redox cycling promotes a metastable kutnahorite-to-dolomite pathway
Published: 2026-01-19
Subjects: Earth Sciences, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics, Planetary Sciences
Fine-crystalline, fabric-preserving dolostones in deep-time successions are difficult to reconcile with high-temperature burial models, suggesting the existence of a low-temperature formation pathway capable of overcoming both the kinetic hydration barrier of Mg2+ and the thermodynamic miscibility gap separating calcite from ordered dolomite. Here, we demonstrate a kinetically favourable route to [...]
A Bayesian ground-motion model for volcano-tectonic earthquakes in southwest Iceland
Published: 2026-06-04
Subjects: Civil Engineering, Geotechnical Engineering, Tectonics and Structure
Volcano-tectonic earthquakes in Iceland and other volcanic regions produce ground motions that differ systematically from those of ordinary shallow crustal tectonic earthquakes. The recent unrest on the Reykjanes Peninsula has provided an exceptional opportunity to quantify these differences, with multiple intense swarms preceding and accompanying eruptive episodes. Building on Hernández-Aguirre [...]
An End-to-End Workflow for Processing Multilingual Stakeholder Workshop Data: A Soil Health Case Study
Published: 2026-04-11
Subjects: Artificial Intelligence and Robotics, Environmental Monitoring, Soil Science
Stakeholder workshops often produce diverse qualitative and ordinal data that are difficult to process consistently, transparently, and reproducibly, particularly in multilingual settings. To address these challenges, we developed an end-to-end workflow for systematic processing of multilingual participatory workshop data. The workflow integrates multilingual preprocessing, structured data [...]
River Paradigm for Sedentary Mammoth Hunters
Published: 2026-04-10
Subjects: Environmental Studies
Simple forensic systems analysis of Upper Paleolithic mammoth procurement, including analysis of foraging radii, taphonomic representation, portability, caloric costs, hunting and transportation energetics, labor economics, socio-economic and personal vulnerability to predators, and material-handling logistics, prove Upper Paleolithic Mammuthus primigenius were not often hunted, scavenged, [...]
Fractal Tomography and the Fisher Information Barrier of Seismicity: Addressing the Origin of Dual Paradoxes via Precision-Calibrated Bayesian Inference
Published: 2026-04-11
Subjects: Applied Statistics, Earth Sciences, Geophysics and Seismology, Non-linear Dynamics, Other Statistics and Probability, Physical Sciences and Mathematics, Statistical Methodology, Statistics and Probability, Tectonics and Structure
The spatial organization of seismicity presents dual multi-decade paradoxes: (1) earthquake catalogs exhibit quasi-planar correlation dimensions (D2 ≈ 2.0–2.6) despite volumetric lithospheric deformation (geometric projection paradox), and (2) Bayesian inference systematically yields D3 ≈ 3.0 contradicting structural geology (Bayesian saturation paradox). We address both through the Fractal [...]
Unravelling long-term temporal dynamics of the invasive fruit fly Bactrocera dorsalis along an altitudinal gradient in Morogoro, Eastern Tanzania
Published: 2026-04-10
Subjects: Agriculture
Bactrocera dorsalis (Hendel) is the most economically important invasive fruit fly in sub-Saharan Africa, yet long-term empirical evidence linking its seasonal dynamics to environmental drivers across altitudinal gradients remains limited. We analysed 279 site-month observations of male trap catches (flies per trap per day, FTD) collected between October 2004 and February 2012 at six sites [...]
Evaluation of H2O-CO2 solubility models in silicate melts: Precision and accuracy of vapor saturation pressure and composition
Published: 2026-04-26
Subjects: Physical Sciences and Mathematics
Solubility models for H2O and CO2 in silicate melt are crucial in igneous petrology and volcanology, in particular for calculating the pressure of vapor saturation of melts from their dissolved volatile content as a barometer, as well as melt and vapor compositions and proportions during degassing. We assessed the accuracy and precision of the calculated pressure of vapor saturation and [...]
PyRiverShift: A Gaussian Transect Decomposition Framework for Quantifying Sub-Pixel Lateral Channel Mobility
Published: 2026-08-16
Subjects: Applied Statistics, Earth Sciences, Environmental Indicators and Impact Assessment, Environmental Monitoring, Geomorphology, Hydrology, Physical Sciences and Mathematics, Sedimentology, Water Resource Management
Along many rivers, lateral channel mobility is a key process, yet quantification from freely available multi-decadal 30 m Landsat imagery is constrained by low pixel resolution relative to channel width. We introduce PyRiverShift, a sensor-agnostic spectral decomposition framework. PyRiverShift fits a 1-D Gaussian to NDWI profiles along valley-perpendicular transects, recovering sub-pixel channel [...]
A Meteorological Indicator for Particulate Matter Emissions: Adapting the Hot-Dry-Windy Index to Predict Feedlot Evening Dust Peaks
Published: 2026-04-21
Subjects: Agriculture, Animal Sciences, Bioresource and Agricultural Engineering, Civil and Environmental Engineering, Engineering, Environmental Engineering, Environmental Sciences, Life Sciences, Physical Sciences and Mathematics
Particulate matter emissions from cattle feedlot operations pose significant challenges to both livestock productivity and air quality in surrounding communities. The evening dust peak (EDP) has been documented for decades, but comprehensive long-term studies examining its meteorological drivers are very limited. While laboratory and field-scale investigations have demonstrated that feedlot [...]
A Community-centered Vision for Data-Intensive Great Lakes Research and Management
Published: 2026-02-06
Subjects: Artificial Intelligence and Robotics, Databases and Information Systems, Environmental Monitoring, Environmental Sciences, Fresh Water Studies, Oceanography and Atmospheric Sciences and Meteorology, Water Resource Management
The Laurentian Great Lakes are a vital freshwater resource and a regionally significant natural system facing complex, persistent, and compounding challenges from climate change, nutrient loading, and invasive species. The increasing availability of observational data, coupled with advances in computational power and machine learning (ML) and artificial intelligence (AI) methods, presents an [...]
High-Alkalinity Algal Cultivation with Direct Air Capture: An Economic Feasibility Analysis
Published: 2026-05-02
Subjects: Engineering
Weather variability and CO₂ supply costs remain key barriers to the commercial viability of algal biofuel production. Recent experimental work has demonstrated that the algae Chlorella sp. strain SLA-04 achieves high productivity in extreme alkaline growth media (pH greater than 10), where the solution chemistry enables direct capture of atmospheric CO₂, eliminating the need for costly CO₂ [...]
Rules-Based Systems Modeling for Hydropower Forecasting in Multi-Objective Reservoir Systems: Application to California's Central Valley Project
Published: 2026-05-02
Subjects: Civil and Environmental Engineering, Engineering, Environmental Engineering
Hydropower from large multi-objective reservoirs and water management projects constitutes the bulk of global reservoir-based generation. Yet accurate forecasting remains challenging because generation is governed not only by hydrology but by complex institutional rules, environmental regulations, and infrastructure constraints. This study demonstrates that a rules-based systems modeling [...]