Preprints
There are 6753 Preprints listed.
Spatial Assessment of Urban Flood Vulnerability in Polk County, Iowa Using a Social–Ecological–Technological Framework
Published: 2026-04-03
Subjects: Environmental Indicators and Impact Assessment, Geographic Information Sciences
Flood impacts are shaped not only by environmental or economic consequences but also by the social, ecological, and infrastructural conditions that influence how communities experience and recover from hazards. This study aims to assess multi-domain flood vulnerability across Polk County, Iowa utilizing a Social–Ecological–Technological Systems (SETS) framework. Eighteen indicators were [...]
The Anthropocene as a Multi-Level Stability Landscape Regimes, Transitions, and Reorganization of the Human–Earth System
Published: 2026-04-02
Subjects: Earth Sciences, Environmental Sciences, Environmental Studies, Physical Sciences and Mathematics, Social and Behavioral Sciences
Understanding the evolution of the human–Earth system over decadal-to-centennial timescales remains a central challenge in Earth system science. The Anthropocene is commonly described using trajectories, tipping elements, and scenario pathways, which capture non-linear dynamics but do not provide a unified representation of regime structure and transitions at planetary scale. Here we introduce a [...]
Multidisciplinary perspectives on Shishaldin Volcano: an open-system, deforming volcano
Published: 2026-04-02
Subjects: Geophysics and Seismology, Volcanology
The integration of multidisciplinary data across multiple eruptions is essential to improve our understanding of a volcanic system. Shishaldin Volcano is one of the most active volcanoes in Alaska, with several reported eruptions over the last 300 years. We synthesize multidisciplinary datasets going back to 1997 and focus our analyses on the 2014–2015, 2019–2020, and 2023 eruptive periods. We [...]
Meteorological Drought Magnitude, Duration, and Intensity in the Past and Future Climate of Eastern Tigray, Northern Ethiopia
Published: 2026-04-02
Subjects: Environmental Sciences
Drought assessment is a critical component of risk management in the comprehensive analysis of drought impacts. This study assessed the meteorological drought events under the past and future climate of Eastern Tigray, Northern Ethiopia, with the principal objective of enhancing early warnings and better drought disaster response mechanisms. To predict future climate, delta scenarios were created [...]
Analysis of Orbit Determination Error Impact on Clutter Doppler Frequency for Space-Based Early Warning Radar
Published: 2026-04-02
Subjects: Aerospace Engineering
The accuracy of clutter Doppler frequency in space-based early warning radar (SBR) directly determines moving target detection performance, and satellite orbit determi-nation error is a important cause of clutter Doppler deviation. Taking satellite position and velocity in the Geocentric Celestial Reference System (GCRS) as core variables, this paper derives the analytical expression of clutter [...]
Poor environmental conditions, food and water insecurity, neighborhood perceptions, and self-reported physical and mental health in four disadvantaged urban communities in Salvador, Brazil: a cross-sectional study.
Published: 2026-04-02
Subjects: Public Health
Emerging evidence suggests an association between environmental conditions and mental well-being. While the physical health impacts of environmental exposures such as contaminated drinking water or open sewers are well-documented with respect to the spread of infectious diseases, the mental health implications of these poor environmental conditions and exposures are less well understood, [...]
A simple model for wind-driven ocean circulation in unbounded domains
Published: 2026-04-02
Subjects: Oceanography and Atmospheric Sciences and Meteorology
An idealized barotropic model satisfying a Stommel–type vorticity balance is formulated for wind–driven circulation in a zonally unbounded channel with spatially varying bottom drag, motivated by the Antarctic Circumpolar Current through Drake Passage. An explicit solution is obtained in the high–drag passage and a Sverdrup interior with western boundary layer is derived in the weak–drag basin; [...]
Dilution drives deep degassing of sulfur in hydrous magmas
Published: 2026-04-02
Subjects: Physical Sciences and Mathematics
Sulfur (S) is thought to degas deep from hydrous magmas (e.g., arc basalts), in contrast to water-poor magmas where S degasses at very shallow depths (e.g., Kīlauea, mid-ocean ridge basalts). Our modelling of degassing shows this occurs for magmas that are both reduced (i.e., S is present predominantly as H2S in the vapor and dissolved sulfide in the melt) and oxidised (i.e., SO2 in the vapor and [...]
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 [...]
Stress testing insurance market stability under climate risk
Published: 2026-04-01
Subjects: Environmental Engineering, Other Earth Sciences, Other Environmental Sciences, Risk Analysis
Extreme weather events exert increasing pressure on communities in hazard-prone areas and on the systems designed to protect them. Insurance serves as a risk-transfer mechanism, providing financial security for homeowners and supporting community resilience. Yet, behind this first layer of protection lies a complex web of reinsurers, capital markets, and public institutions that absorb and [...]
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, [...]
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 [...]
Nickel Isotope Systematics in the Talvivaara Paleoproterozoic Black Shale Deposit Reveal Mineralogy-Controlled Fractionation with a Preserved Biogenic Signal
Published: 2026-04-01
Subjects: Biogeochemistry, Earth Sciences, Geochemistry, Physical Sciences and Mathematics
Nickel isotope systematics in sediment-hosted sulfide deposits are now more commonly used to infer redox and diagenetic processes, yet their potential to record biological signals and their preservation through diagenesis and metamorphism remains poorly constrained. Here we present micro-scale coupled δ60Ni, δ34S, δ13C, REE pattern, and paleoproductivity proxy data from the Paleoproterozoic [...]
Persistent Multi-Scale Consistency in Best-Track Intensity Evolution and Rapid Intensification in Atlantic Tropical Cyclones (1851–2024)
Published: 2026-04-01
Subjects: Atmospheric Sciences, Meteorology, Physical Sciences and Mathematics
Rapid intensification (RI), commonly defined as an increase in maximum sustained wind speed of at least 30 kt within 24 h, remains one of the most challenging aspects of tropical cyclone forecasting. This study evaluates whether persistent multi-scale consistency in best-track intensity evolution is statistically associated with RI occurrence across the full Atlantic historical record. A [...]
Rethinking land take futures: A cellular automata-based spatial planning approach to model urban expansion and densification under divergent growth scenarios
Published: 2026-04-01
Subjects: Environmental Engineering, Environmental Studies, Geographic Information Sciences, Spatial Science
Land take - the conversion of greenfield land into built-up areas - poses critical challenges for sustainable urban development. Addressing this issue requires understanding the balance between outward urban expansion and inward urban densification. This study employs a Multinomial Logistic Regression-based Cellular Automata (MNL-CA) model to simulate two different future scenarios of urban [...]