Preprints
There are 6976 Preprints listed.
A Multi-year Analysis of Supraglacial Lake Seasonal Dynamics in the Karakoram
Published: 2026-03-10
Subjects: Earth Sciences, Environmental Sciences, Physical Sciences and Mathematics
Supraglacial lakes are a key feature of many debris-covered glaciers in the Karakoram region. These lakes are highly dynamic, often forming and draining rapidly on seasonal timescales. However, due to their small size and transient nature, they are largely absent from regional and global glacial lake inventories. In this study, we used Sentinel-1 synthetic aperture radar (SAR) imagery to examine [...]
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 [...]
Unravelling sustainable development at the sub-national scale in India
Published: 2024-11-07
Subjects: Ecology and Evolutionary Biology, Environmental Studies, Life Sciences, Nature and Society Relations
India's diverse socioeconomic landscape and environmental challenges make it a complex case for implementing the UN Sustainable Development Goals (SDGs). Despite India's federal structure, comprehensive research on subnational SDG progress is lacking. This study analysed progress, challenges, interlinkages, and spatial disparities in individual and grouped SDGs (environmental, social, and [...]
SpecFWAT: Specfem3D-based Full-waveform Adjoint Tomography Package for High-resolution Lithospheric Imaging
Published: 2026-02-27
Subjects: Geophysics and Seismology
We present SpecFWAT, a high-performance, open-source software package designed for full-waveform adjoint tomography at the lithospheric scale using multiple data types. Building upon the spectral-element forward solver SPECFEM3D, SpecFWAT introduces a modernized inversion framework featuring an object-oriented Fortran design and a CMake-based build environment. To enhance usability and [...]
Community-Oriented Data Integration and Communication Framework for Streamflow Forecast Models and Flood Inundation Map Products
Published: 2025-12-23
Subjects: Civil Engineering, Engineering, Environmental Engineering, Hydraulic Engineering, Water Resource Management
Access to critical flood risk information is often limited by expert-driven workflows that require specialized software, creating a barrier to stakeholder engagement and effective science communication. This study presents a generalized web-based framework that integrates federal datasets to support real-time, scenario-based flood forecasting and mapping across the continental United States. By [...]
Dynamic critical groundwater depth as a predictor of irrigation-intensified salinization in lowland Hungary
Published: 2026-02-27
Subjects: Agriculture, Hydrology, Soil Science
Shallow groundwater in continental lowland environments sustains upward capillary fluxes that transport dissolved salts to the land surface. However, the depth below which this capillary-driven contribution becomes negligible, often parameterized as the extinction depth in groundwater model ET packages, has been treated as a static, soil-dependent parameter. We argue that salinization risk is [...]
HIGH-RESOLUTION DIGITAL TERRAIN MODEL FOR THE ITALIAN TERRITORY
Published: 2026-03-12
Subjects: Agriculture, Civil and Environmental Engineering, Computer Sciences, Earth Sciences, Engineering, Engineering Education, Environmental Sciences, Environmental Studies, Geography, Life Sciences, Mining Engineering, Physical Sciences and Mathematics, Risk Analysis, Social and Behavioral Sciences
High-resolution digital terrain models are essential for environmental planning and territorial analyses, and provide foundations for geomorphological and hydrological applications, including flood and landslide modelling and geo-hydrological hazard and risk assessments. In Italy, airborne LiDAR surveys have improved the representation of terrain morphology in the last decade, but their coverage [...]
Structural Shifts in Urban Air Pollution Patterns in Trinidad After COVID-19: Evidence from Diurnal and Weekday/Weekend PM Profiles, 2022-2024
Published: 2026-02-27
Subjects: Physical Sciences and Mathematics
The COVID-19 pandemic temporarily reduced air pollution by disrupting human mobility. This study tests whether particulate pollution patterns in Trinidad and Tobago underwent lasting structural change during the post-pandemic period 2022-2024. We analyse continuous PM₂.₅ and PM₁₀ observations from four Environmental Management Authority monitoring sites representing distinct source environments: [...]
A Physics-Informed Data Science Approach to Quantifying Rain-Snow Fraction Dynamics in the Central Himalayas
Published: 2026-03-12
Subjects: Physical Sciences and Mathematics
Mountain studies worldwide have documented increases in rainfall fraction as an impact of climate change. Most mountain systems show an increasing trend in rainfall fraction due to shifting snow precipitation to rain. In Nepal, which occupies an 800 km-long belt of the Hindu Kush Himalaya, the precipitation phase trend is not well known. This study conducts a precipitation phase study in the [...]
Advancing continuous in-situ quantification of microbial contamination in environmental waters using tryptophan-like fluorescence - Sensor design and validation
Published: 2026-01-23
Subjects: Environmental Engineering, Environmental Monitoring
Microbial contamination of recreational and source waters poses persistent public health risks, yet conventional monitoring based on laboratory culture methods provides delayed results and limited temporal resolution. These constraints hinder timely identification of short-duration contamination events and effective management of recreation advisories. This study evaluates the performance of a [...]
High-frequency volcano seismic tremor at Mt. Etna, Italy: Insights from varying seismic-acoustic amplitude ratios
Published: 2025-10-22
Subjects: Physical Sciences and Mathematics
We present a comprehensive, high-resolution seismic and acoustic datasets from Mt. Etna, Italy acquiredthrough a large, unprecedented deployment of seismometers and microphones in the summit region duringsummer 2022, highlighting about 50 rarely reported high-frequency (12–15 Hz), short-duration, minute- tohalf an hour-long volcanic seismic tremor episodes. These events exhibit variable [...]
Rethinking Hydroclimatic Extremes: Occurrence of abrupt Drought-to-Heavy-Precipitation transition events
Published: 2026-03-10
Subjects: Engineering, Physical Sciences and Mathematics
Drought-to-heavy-precipitation abrupt transitions (sometimes called dry-to-wet extremes, whiplash events, or drought–flood transitions) are an emerging research focus. These are rapid shifts from a period of sustained drought (rainfall deficits, soil moisture stress, low streamflow) to intense precipitation or flooding over short timescales. Also described as climate whiplash events, they reflect [...]
Land-use change impacts on multidimensional well-being: insights from tropical forest frontiers in Madagascar, Myanmar and Laos
Published: 2026-04-13
Subjects: Life Sciences
Tropical forest frontiers are undergoing rapid land use change due to expanding global demands for agricultural commodities and conservation efforts. These changes profoundly affect the well-being of local populations, yet the pathways linking land use, ecosystem services, and well-being remain underexplored. This study examines these links across three forest frontier landscapes in Madagascar, [...]
Coral connectivity: Biophysical drivers, key knowledge gaps and emerging empirical advances
Published: 2026-03-11
Subjects: Life Sciences
Coral reefs are experiencing widespread decline from climate change and anthropogenic stressors, increasing the need to understand the processes that maintain and replenish coral populations. Connectivity—the exchange of individuals between coral populations—underpins population recovery, yet major uncertainties remain in larval biology and behaviour during dispersal and settlement. This review [...]
Buoyancy of volatile-rich kimberlite melts, magma ascent, and xenolith transport
Published: 2026-03-26
Subjects: Physical Sciences and Mathematics
Kimberlite melts are primary carriers of mantle-derived carbon and hydrogen, playing an important role in Earth’s deep carbon cycle and diamond transport. Their low densities, viscosities, and vapor exsolution enable fast ascent rates. Ascending from the upper mantle, kimberlite melts incorporate xenoliths and xenocrysts and exsolve volatiles. These processes alter their initial composition, [...]