Preprints
There are 7999 Preprints listed.
Experiments to Systematically Evaluate the Role of Cohesion in Channel Initiation and Evolution
Published: 2025-07-30
Subjects: Earth Sciences, Engineering, Engineering Science and Materials, Environmental Sciences, Materials Science and Engineering, Mechanical Engineering, Other Engineering, Social and Behavioral Sciences
Sediment cohesion has long been thought to exert a fundamental control on channel evolution and the wide range of channel forms observed on Earth and other planets. Here we present results from simplified laminar flume experiments to investigate how systematically increasing sediment cohesion affects erosional channel formation. Low cohesion leads to a subtle shift from highly mobile, [...]
Beyond Techno-Centered Decarbonization Roadmaps: Designing Demand-Side Pathways for Sustainable Mobility
Published: 2026-06-06
Subjects: Environmental Studies
Decarbonization roadmaps for the automobile sector predominantly rely on supply-side improvements and electrification, yet their ability to deliver the required environmental reductions remains uncertain. This study introduces the Demand-Side Decomposition Analysis framework, which consistently integrates demand-side mitigation into a parametrized life cycle assessment of the automobile value [...]
Unlocking Historical Sea Level Records through Digitisation—A Review and Inventory
Published: 2026-09-28
Subjects: Life Sciences
Multi-decadal to centennial sea-level time series are essential for quantifying historic trends in mean and extreme sea levels, refining future projections, calibrating coastal models, and supporting coastal management and adaptation strategies. Data archaeology can increase the spatial coverage and length of timeseries through the recovery of historical observations from paper-based records. [...]
A fan-shaped subglacial basin province in East Antarctica formed by rotational extension
Published: 2025-12-19
Subjects: Earth Sciences, Geology, Geophysics and Seismology, Glaciology, Tectonics and Structure
Recent sub-ice topography investigations have imaged with greatly improved detail a set of low-elevation V- shaped basins hidden beneath a very large sector of the East Antarctic Ice Sheet. Here we jointly interpret sub-ice topography and geophysical data and show that these basins form a semi-continental sized fan shaped physiographic unit which radiates from a focal point near the South Pole. [...]
Assessing Future Temperature and Precipitation Responses to Solar Radiation Management in Bangladesh: A Comparative Analysis with SSP Scenarios
Published: 2026-04-10
Subjects: Other Life Sciences
Bangladesh is among the most climate-vulnerable nations globally, facing compounding risks from rising temperatures, shifting precipitation patterns, and intensifying extreme events. This study assesses projected changes in precipitation, maximum temperature (Tmax), and minimum temperature (Tmin) over Bangladesh under two emission pathways — SSP2-4.5 and SSP5-8.5 — and two Solar Radiation [...]
Xerokampos Evidence for a localized hot desert microclimate enclave
Published: 2026-04-21
Subjects: Climate
This study investigates the spatial precipitation distribution and microclimatic characteristics of the coastal enclave of Xerokampos, Lasithi in Greece. Utilizing a local meteorological time series (2020-2026), the mean annual precipitation (MAP) is recorded at 219.5 mm, alongside a mean annual temperature of 20.9°C. To contextualize these limited contemporary observations, a synthetic climate [...]
Coupling Coordination and Driving Mechanisms of Land Use and Ecosystem Service Value in the Central Yunnan Urban Agglomeration
Published: 2026-04-10
Subjects: Environmental Studies
ABSTRACT Research Content: This study focuses on the Central Yunnan Urban Agglomeration, analyzing the spatiotemporal evolution characteristics, coupling coordination relationship, and driving mechanisms of land use and ecosystem service value (ESV) from 2010 to 2024. It aims to provide a scientific basis for regional territorial spatial optimization and ecological civilization [...]
Survival and Detectability of Mars-Derived Organic Carbon in Phobos Regolith: A Quantitative Hardness Taxonomy for MMX Sample Analysis
Published: 2026-07-10
Subjects: Planetary Sciences
The Martian Moons eXploration (MMX) mission will return ≥ 10 g of Phobos regolith containing a small fraction of Mars-derived impact ejecta (Ramsley and Head, 2013; Chappaz et al., 2013). We quantify what fraction of this material could plausibly carry detectable ancient Martian organic matter, correcting an uncited back-of-envelope estimate that assumed percent-level survival of degraded [...]
The Evolution of Digital Twins in Hydrology and Environmental Science: From Physical Models to AI-Assisted Autonomous Systems
Published: 2026-04-10
Subjects: Civil and Environmental Engineering, Environmental Engineering
Digital Twin (DT) technologies have emerged as transformative framework in hydrology, enabling adaptive, real-time modeling of water systems through data-driven intelligence. This position paper proposes a five-level technological evolution model for hydrological digital twins, tracing field’s progression over the last three decades (1995-2025) from physical models to autonomous & [...]
Reassessing long-term exhumation rates in magmatic terranes
Published: 2026-05-10
Subjects: Earth Sciences, Geochemistry, Geology, Tectonics and Structure
Crustal exhumation is central to mountain building, weathering, and sediment production processes, which significantly influence the composition and behavior of Earth’s oceans and atmosphere. It also controls the formation, enrichment, and preservation of porphyry copper deposits, which are a vital source of metals for the clean energy technologies underpinning the global green energy transition. [...]
Persistent Geochemical Zonation (“Striping”) within the Galápagos Mantle Plume
Published: 2026-04-10
Subjects: Earth Sciences, Physical Sciences and Mathematics
Some hotspot tracks, such as those formed by the Hawai’i and Galápagos mantle plumes, exhibit long-lived cross-track isotopic zonation, thought to reflect the streaking out of heterogeneous material in the plume conduit during upwelling. In lavas associated with the Galápagos mantle plume, three geochemical domains, present for at least 15 Myr, have been identified: northern, southern and [...]
Probability-Perturbation McMC for 3D Bayesian TDEM Inversion with Unknown Covariance Parameters
Published: 2026-08-03
Subjects: Physical Sciences and Mathematics
We present a hierarchical Bayesian inversion framework for large-scale 3D time-domain electromagnetic (TDEM) data that jointly infers the subsurface conductivity field and the parameters controlling a Gaussian process (GP) covariance function, requiring minimal assumptions about subsurface spatial structure. The framework addresses two fundamental bottlenecks in 3D probabilistic inversion: the [...]
Improving Learning and Science Outcomes in The Reservoir Observer Student Scientists (ROSS) Program Through Reflection and Skill Building Exercises
Published: 2026-05-12
Subjects: Education, Life Sciences
The Reservoir Observer Student Scientists (ROSS) program engages high school students in year-round water quality monitoring to detect and understand cyanobacterial harmful algal blooms (cyanoHABs). This place-based participatory science program combines hands-on sampling, data analysis, and reflective learning to foster scientific literacy and contribute to environmental research. A mid-year [...]
The OpenQuake Model Building Toolkit: A suite of tools for building components of a seismic hazard model
Published: 2025-05-16
Subjects: Earth Sciences
Building a probabilistic seismic hazard model is a complex task, requiring the integration of disparate datasets into one cohesive and comprehensive model. To facilitate this process, we have developed the OpenQuake Model Building Toolkit (OQ-MBTK), a collection of functions for constructing probabilistic seismic hazard models. This toolkit encompasses a wide array of functions essential for [...]
Glacier thickness, thermal regime, and subjective uncertainty from ground-penetrating radar of 25 Svalbard glaciers
Published: 2026-06-26
Subjects: Earth Sciences, Glaciology, Physical Sciences and Mathematics
Glacier thickness and thermal regime control glacier dynamics and long-term evolution, but observations are sparse at regional scales. Both can be measured using ground-penetrating radar (GPR), which requires manual or automated interpretation. Interpretation often depends on more than signal waveform analysis alone, and this subjectivity has not been thoroughly quantified before. We present 699 [...]