Preprints
There are 6976 Preprints listed.
InSARLite: An Open-Source GUI for Streamlined InSAR Time Series Processing
Published: 2026-03-26
Subjects: Graphics and Human Computer Interfaces, Other Earth Sciences, Programming Languages and Compilers
Interferometric Synthetic Aperture Radar (InSAR) is a powerful technique for measuring surface deformation at high spatial resolution over large areas. Despite its demonstrated value across geohazards and Earth-surface processes, broader adoption is often limited by the complexity of end-to-end processing workflows and the technical overhead required to execute them. To reduce this barrier, we [...]
Spatiotemporal relationships, influencing factors and policy implications of coastal man–land system spatial resilience based on interpretable machine learning models: A case study of China’s southeastern coastal region
Published: 2026-03-26
Subjects: Geography
Spatial resilience, as a projection of system resilience at the landscape scale, offers a novel spatial interpretation for analyzing man–land interactions in coastal zones. This study builds an evaluation system from “element-landscape-system” levels, based on the conceptual framework of spatial resilience in coastal man–land systems. It examines the spatiotemporal evolutionary features of [...]
An Improved Methodology to Estimate Cross-Scale Kinetic Energy Transfers from Third-Order Structure Functions using Regularized Least-Squares
Published: 2025-03-25
Subjects: Analysis, Applied Statistics, Fluid Dynamics, Longitudinal Data Analysis and Time Series, Oceanography, Oceanography and Atmospheric Sciences and Meteorology, Other Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics, Statistical Methodology, Statistical, Nonlinear, and Soft Matter Physics
Several methods exist for estimating cross-scale kinetic energy (KE) transfers; however, most are ill-adapted for sparse ocean observations, hindering the study of oceanic KE transfers. A newly developed third-order structure function, $D3(r)$, framework allows estimation of KE injections $\xi_j(k)$ and spectral flux $F(k)$ across scales using sparse data. This approach requires inverse methods [...]
Large climate model ensembles reveal underdispersion in seasonal Atlantic tropical cyclone counts
Published: 2026-04-29
Subjects: Atmospheric Sciences, Physical Sciences and Mathematics
Seasonal Atlantic tropical cyclone (TC) counts are commonly modeled as a conditional Poisson process, implying that the distribution of possible seasonal outcomes—the range of TC counts that could plausibly occur in a given year—exhibits equidispersion for a given climate state, with its variance equal to its mean. This assumption underlies many statistical frameworks used for seasonal TC [...]
Inferring Long-Term Tectonic Uplift Patterns from Bayesian Inversion of Fluvially-Incised Landscapes
Published: 2024-10-15
Subjects: Earth Sciences
Earth surface processes encode the combined forcing of tectonics and climate in topography. Separating their contributions is essential for using landscapes as quantitative records of crustal deformation. Here, we develop a method to invert non-dimensionalized, spatially variable fields of long-term rock uplift and rock erodibility from fluvially incised landscapes, using an extended [...]
PharmGuard: A blockchain and LLM-integrated framework with provenance-aware anomaly scoring for securing pharmaceutical supply chains
Published: 2026-04-09
Subjects: Computer Engineering
Counterfeit and substandard medicines remain a major global health threat, underscoring the need for end-to-end traceability and proactive monitoring across pharmaceutical supply chains. This paper presents PharmGuard, a framework that combines a permissioned blockchain ledger (Hyperledger Fabric) for tamper-evident provenance with a large-language-model analytics layer for detecting anomalous [...]
Reevaluating the Abbabis Complex: Intrusive relationships and melt connectivity in a syn-orogenic migmatite–granite system, Damara Orogen, Namibia
Published: 2026-04-25
Subjects: Earth Sciences, Geochemistry, Geology, Stratigraphy, Tectonics and Structure
The Abbabis Complex in the Damara Orogen has long been interpreted as a pre-Damaran (c. 1–2 Ga) basement terrane unconformably overlain by Neoproterozoic metasedimentary rocks of the Damara Supergroup. New field mapping and geochemical data from the Ida Dome and Husabberg Anticlinorium encourages re-evaluation of this interpretation. The Abbabis Complex comprises migmatites, larger leucogranite [...]
Geochemical and granulometric fingerprints of 8,200-year Westerly variability recorded in inner-fjord lake sediments from Central Svalbard
Published: 2026-04-08
Subjects: Earth Sciences, Environmental Sciences, Physical Sciences and Mathematics
The Arctic is warming faster than any other region on Earth. As sea-ice diminishes, surface boundary conditions (roughness and air-sea coupling) change and open-water fetch increases, potentially strengthening the effective wind forcing on Arctic coasts. These changes can be recorded in lake sediments through the deposition of wind-blown grains and elements, offering insights into past wind and [...]
Quantifying the Regional Dynamics and Redistribution of Physical Vulnerability in Least Developed Countries
Published: 2026-04-09
Subjects: Categorical Data Analysis, Civil Engineering, Environmental Indicators and Impact Assessment, Environmental Monitoring, Geographic Information Sciences, Other Computer Sciences, Physical and Environmental Geography, Remote Sensing, Spatial Science, Structural Engineering
In the margins of the accelerating development of digital technology worldwide are the Least Developed Countries (LDCs), which continually face an exacerbated risk crisis at the intersection of rapid rural-urban growth, underlying physical vulnerability, and intensifying climate hazards. Despite decades of international development commitments, the rate of built-up expansion across LDCs has [...]
Automated Detection of Slow Slip Events from InSAR: Application to the North Anatolian Fault
Published: 2026-04-09
Subjects: Earth Sciences, Physical Sciences and Mathematics, Tectonics and Structure
The growing volume of InSAR time series offers new opportunities to systematically detect transient aseismic deformation, but identifying low-amplitude slow slip events (SSEs) remains challenging due to noise and limited temporal resolution. Here, we adapt the geodetic matched filter, originally developed for GNSS data, to InSAR displacement time series in the context of shallow strike-slip [...]
Technological Adaptation Outpaces Climate Impacts on Aviation: Evidence from Three Decades of Warming
Published: 2025-08-08
Subjects: Civil and Environmental Engineering, Engineering, Environmental Engineering, Environmental Studies, Social and Behavioral Sciences
Climate impact assessments frequently prioritize projections over empirical validation of operational outcomes. We introduce and apply a generalizable empirical validation framework that (i) separates operational encounters from safety outcomes and (ii) tests climate → operations linkages via physical mechanism validation with explicit detectability bounds. Using 33 years (1991–2023) of U.S. [...]
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, [...]
A fan-shaped subglacial basin province in East Antarctica formed by rotational extension
Published: 2025-12-18
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. [...]
Towards Prospective Disaster Risk Management: Mapping Multi-hazard Urban Risk Dynamics Driven by Evolving Exposure and Vulnerability via Earth Observation
Published: 2026-04-30
Subjects: Categorical Data Analysis, Civil and Environmental Engineering, Civil Engineering, Engineering, Environmental Monitoring, Geographic Information Sciences, Human Geography, Other Computer Sciences, Physical and Environmental Geography, Remote Sensing, Risk Analysis, Spatial Science, Structural Engineering
As local governments increasingly adopt geospatial Climate and Disaster Risk Assessment (CDRA) to inform prospective public policy, the reliability of existing static risk intelligence is challenged by the continuous evolution of building exposure, population distribution, and physical vulnerability. Recent multi-temporal datasets of the built environment, derived from Earth Observation and [...]
Assessing Future Temperature and Precipitation Responses to Solar Radiation Management in Bangladesh: A Comparative Analysis with SSP Scenarios
Published: 2026-04-09
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 [...]