Preprints
There are 7999 Preprints listed.
A Multiscale Geometric PDE Framework Coupling Macroscopic Curvature and Microscopic Grain Boundary Motion: An Application to Snow Deformation and Sintering
Published: 2026-07-09
Subjects: Physical Sciences and Mathematics
The motion of grain boundaries in polycrystalline materials and porous media has conventionally been modeled by local geometric evolution equations, such as Mean Curvature Flow (MCF). However, existing models primarily depend on local interfacial geometry and generally do not account for the influence of macroscopic curvature fields induced by the deformation of the bulk continuum. In this study, [...]
Reversal of extreme precipitation trends over the Northeast US in response to aggressive climate mitigation in GFDL SPEAR
Published: 2025-10-23
Subjects: Physical Sciences and Mathematics
Rapid reductions in greenhouse gas (GHG) concentrations are increasingly included in mitigation strategies, yet the response of regional climate extremes to such reductions remain highly uncertain. Here, we assess projected changes in extreme precipitation over the Northeast US under an aggressive overshoot mitigation pathway (SSP5-3.4OS), simulated by the fully coupled 25-km GFDL SPEAR climate [...]
Platinum-Group Element systematics in the North Atlantic Igneous Province: new insights from Northern Irish and Irish magmatism
Published: 2026-04-01
Subjects: Geochemistry, Geology, Other Earth Sciences, Volcanology
The North Atlantic Igneous Province (NAIP) is one of the most prospective regions for Ni-Cu-Platinum-Group Element (PGE) mineralisation in Europe, and recent studies have discovered elevated PGE concentrations within its early lavas and minor intrusions comprising the British and Irish Palaeogene Igneous Province (BIPIP). This study presents an extended digital map of the regional mafic dyke [...]
Spatiotemporal Evolution of Urban Thermal Conditions, Vegetation Dynamics, and Built-up Expansion in Ahmedabad, India (2000–2025) Using Multi-Temporal Landsat Analysis.
Published: 2026-05-11
Subjects: Climate, Environmental Indicators and Impact Assessment, Environmental Monitoring, Environmental Sciences, Sustainability, Terrestrial and Aquatic Ecology
Rapid urban expansion has substantially altered urban thermal conditions across many semi-arid cities. This study examined spatiotemporal variation in land surface temperature (LST), vegetation cover, and built-up intensity across Ahmedabad, India, between 2000 and 2025 using multi-temporal Landsat imagery and the Google Earth Engine (GEE) platform. Spatial analysis revealed progressive expansion [...]
The June 2026 Socorro swarm: A reactivation of rift-parallel normal faults above the Socorro Magma Body
Published: 2026-09-28
Subjects: Geophysics and Seismology
In June 2026 an earthquake swarm of maximum local magnitude (ML) 3.9, comprising 425 matched-filter detections, occurred in the central Rio Grande rift about 45 km north of Socorro, New Mexico, above the northern margin of the Socorro Magma Body (SMB). This setting makes a magmatic or fluid origin the natural hypothesis. We test this hypothesis against the source physics, comparing the swarm with [...]
First Empirical Measurement of k G on Mars via InSight/ELYSE Seismic Data: A Two-Planet Validation of the Gasque Compliance
Published: 2026-04-01
Subjects: Geophysics and Seismology, Planetary Geophysics and Seismology
We present the first empirical measurement of the Gasque compliance index k G = π × f₀ / (Q × V s ) on Mars, using 8.3 GB of InSight/ELYSE broadband seismic data (XB network, 2019–2022) processed with the Harmonic Matched Filter (HMF) pipeline. From 4,645,686 stacked PSD windows and 91 candidate frequencies tested via permutation (N = 1,000), five spectral features are recovered at p < 0.05, [...]
A novel integrated assessment framework to inform Australia's net zero transition
Published: 2026-08-03
Subjects: Agriculture, Environmental Studies, Physical and Environmental Geography, Spatial Science
Australia has set an ambitious goal of achieving net-zero greenhouse gas emissions by 2050. Attaining this target will require important transformations across multiple sectors of the economy. Integrated assessment models can provide valuable insights into the interactions across sectors of the economy, including land, agriculture and energy, to guide these complex transformations. However, many [...]
Uncertainty-Aware Bayesian Machine Learning for Landslide Susceptibility Mapping: in the Chattogram Metropolitan Hill System, Bangladesh
Published: 2026-03-25
Subjects: Civil and Environmental Engineering, Engineering
Landslide-prone hilly regions experiencing rapid urban expansion need susceptibility models that provide both robust predictive performance and transparent uncertainty estimates. This study develops an uncertainty-aware probabilistic framework for landslide susceptibility mapping in Bangladesh’s Chattogram metropolitan hill system, incorporating 14 conditioning factors: geomorphological, [...]
Can Hyperscale Data Centers Alter Local Meteorology in the Kathmandu Valley? A Simulation-Based Assessment
Published: 2026-05-11
Subjects: Physical Sciences and Mathematics
There is growing interest in Nepal in hosting large data centers inside the Kathmandu Valley, but how the valley’s atmosphere would respond to substantial additional heat emissions remains uncertain. The Kathmandu Valley is a closed bowl-shaped basin surrounded by mountains, with persistent nocturnal cold pools and weak boundary-layer winds that limit the dispersal of pollutants and heat from the [...]
Impacts of short-term weather on communicable enteric infectious diseases in western Europe: A case study of the Republic of Ireland, 2009–2020
Published: 2026-06-05
Subjects: Public Health
The incidence of sporadic enteric infections at temperate latitudes, including much of western Europe, vary seasonally, and as such are forecasted to shift in response to global climate changes. Understanding the associations between weather patterns and infection incidence is crucial to focus future surveillance efforts and minimise disease transmission. Accordingly, the relationship between [...]
A Systematic Review of Arsenic, Lead, and Manganese Occurrence through Drinking Water in East Africa
Published: 2026-03-25
Subjects: Environmental Sciences
Toxic metals (TMs) harm human health, causing cancers, irreversible neurocognitive impairment, and cardiovascular disease. Drinking water is an important source of exposure to TMs. However, current peer-reviewed literature does not adequately capture or synthesize the extent of TM occurrence in drinking water in East Africa. The goal of this systematic review is to report and synthesize available [...]
Influence of sea surface temperature patterns and mean warming on past and future Atlantic hurricane activity
Published: 2025-12-11
Subjects: Physical Sciences and Mathematics
This study investigates the relative contributions of large-scale thermodynamic and dynamic processes to multidecadal changes in Atlantic tropical cyclone (TC) activity, spanning the historical record since the late 19th century, and extending to 2100 projections. We employ a framework that decomposes TC counts into precursor disturbances that transition into fully developed storms, applied to [...]
BORDER OPTICS : Satellite Verification of India's Vibrant Villages Programme: A Compositing-Window Robustness Assessment of Border-Village Development
Published: 2026-09-05
Subjects: Earth Sciences, Environmental Education, Environmental Indicators and Impact Assessment, Environmental Monitoring, Environmental Sciences, Environmental Studies, Geographic Information Sciences, Geography, Human Geography, Natural Resource Economics, Natural Resources and Conservation, Natural Resources Management and Policy, Nature and Society Relations, Physical and Environmental Geography, Remote Sensing, Spatial Science, Sustainability
Ask the Government of India if things have worked out for them with their flagship scheme for the Border Villages, the honest answer (on parliamentary record) is No, it has never been verified anywhere. The Vibrant Villages Programme (VVP-I) has approved around ₹4,800 crore in support of 2,967 villages in five Himalayan border states/union territories including 662 villages marked 'priority' for [...]
Trade Openness, Monetary Policy Shocks, and Welfare in Malawi: A Structural VAR Approach.
Published: 2026-03-25
Subjects: International and Area Studies
Small open economies face complex interactions between external trade dynamics and domestic monetary policy. For Malawi, persistent inflation, exchange rate instability, and dependence on primary commodity exports raise important questions about the relative roles of trade openness and monetary policy in shaping welfare outcomes. This study examines how trade and monetary shocks affect welfare, [...]
A new diagnostic of air-sea interaction reveals ocean control of turbulent heat flux in the South Asian Summer Monsoon
Published: 2026-04-02
Subjects: Atmospheric Sciences, Climate, Oceanography
Air-sea interaction plays a central role in the South Asian summer monsoon, with processes such as surface turbulent heat fluxes, upper ocean mechanical mixing, surface buoyancy forcing, and surface moisture fluxes providing bridges between the ocean and atmosphere. The air-sea heat flux responds to internal variability in the ocean and atmosphere, as well as feedbacks arising from their [...]