Preprints
There are 6976 Preprints listed.
The 1908 Tunguska event and some mini-Tunguskas
Published: 2026-03-14
Subjects: Education, Physical Sciences and Mathematics
This paper is a continuation of a series of works, devoted to various aspects of the 1908 Tunguska event. This paper is devoted to several events which can be called as mini-Tunguskas. Their manifestations are in some ways similar to the 1908 Tunguska event, only on a much smaller scale. Often initially such events were interpreted as meteoroidal bolides or even meteorite falls. However, the [...]
On the seasonal predictability of the 2020 North Atlantic tropical cyclone season
Published: 2026-03-04
Subjects: Physical Sciences and Mathematics
The 2020 Atlantic tropical cyclone (TC) season was exceptionally active, producing over twenty named storms, yet several seasonal forecasts failed to predict such extreme activity across their ensemble spread. Even when forced with the observed 2020 sea surface temperatures (SSTs), physics-based models simulated only a moderately active season across their ensemble members. Using observations and [...]
Automated Levee Detection in Digital Elevation Models
Published: 2026-03-04
Subjects: Geomorphology
Current flood risk models applied at national and global scales do not---or only partially---take levees into account, resulting in inaccurate flood inundation maps. While levees are important assets in natural hazard risk assessments, accurate information in the public domain about the location and height of these embankments is often missing. Remote sensing data---such as global digital [...]
High-resolution interactive global flood forecast for past, present, and future
Published: 2026-03-04
Subjects: Engineering
Globally operating modelling approaches for flood dynamics have shown significant increases in usage, quality and availability in recent years. Flood modelling at global scale stretches the computational demand, due to combinations of spatial scale and resolution, limiting to static pre-computed maps and prohibiting interactivity. Particular high-resolution global models are only available as [...]
Hydrological modeling in a highly urbanized watershed using explainable machine learning and sub-hourly data: A case study in the city of Sao Paulo, Brazil
Published: 2026-03-05
Subjects: Engineering
Hydrological modeling of urbanized watersheds is a highly challenging task due to the complexity and non-linearity of the rainfall-runoff relationship in these areas. Many data-driven models have been proposed in the literature to address this problem. However, in this field, there is a need not only for performance but also for explainability and comprehension of the impacts of [...]
fasterRaster: GIS in R using GRASS for large vectors and rasters
Published: 2025-10-17
Subjects: Geomorphology, Hydrology, Other Earth Sciences, Other Environmental Sciences
Within the R ecosystem, packages like terra and sf are the go-to solutions for most geospatial analyses, yet can struggle with large rasters and vectors. The Geographic Resources Analysis Support System, or GRASS, offers solutions that are often more efficient for large data. However, using GRASS through R requires users to become familiar with GRASS-specific syntax and data constructs. The [...]
Pyxccd: An Efficient Python Package for Break-aware Time Series Analysis of Earth Observation Data
Published: 2026-03-21
Subjects: Engineering
Pyxccd is an open-source, cross-platform Python package (installable via PyPI) for break-aware analysis of Earth observation time series, supporting retrospective disturbance mapping and near-real-time (NRT) monitoring. It implements the two CCDC-like algorithms: COLD (the latest version) and S-CCD 2.0 (state-space formulation to enable NRT application). Additionally, S-CCD 2.0 adds an [...]
Transient liquid- and solid-dominated inflation of an upper crustal magma chamber: insights from the Carlingford Complex (Ireland)
Published: 2026-03-18
Subjects: Earth Sciences, Geochemistry, Geology, Volcanology
Layered intrusions are the crystallised remnants of magma reservoirs and preserve a detailed record of magma storage, differentiation, and recharge processes in the upper crust. Their assembly is commonly categorised into two end-member emplacement regimes: long-lived liquid-dominated magma chambers, and incrementally assembled crystal-rich mush systems. These end-members are often presented as [...]
The Permian–Triassic transition in Türkiye: New insights and 3D outcrop models for accessible, reproducible and sustainable fieldwork
Published: 2025-08-22
Subjects: Biodiversity, Earth Sciences
The Permian–Triassic transition is characterised by major environmental changes and the largest known mass extinction event in the Phanerozoic. However, successions with a relatively complete sedimentological and palaeontological record across the Permian–Triassic are limited to a few well-known sections. The Antalya and Aladağ Nappes in south-western Türkiye provide extensive outcrops of the [...]
WITHDRAWN: Sustaining Life on the Fault Line: Women’s Social Reproduction and Grassroots Disaster Governance in Yogyakarta, Indonesia
Published: 2026-03-19
Subjects: Environmental Studies, Human Geography, Social and Behavioral Sciences
Water Health: Testing and Determining Health of Local Bodies of Water
Published: 2026-03-31
Subjects: Ecology and Evolutionary Biology
Ponds and rivers represent distinct aquatic ecosystems characterized by significant differences in size, flow, and water quality metrics through pH, salinity, total dissolved solids (TDS), specific gravity, temperature, electric current, and oxidation-reduction potential (ORP). While general metrics for assessing pond health are well-established, regional tolerance ranges can vary from commonly [...]
Dataset of DInSAR wrapped phase signals for AI-based automated detection and classification of mass movements
Published: 2026-03-26
Subjects: Earth Sciences, Environmental Monitoring, Environmental Sciences, Geology, Geomorphology, Physical Sciences and Mathematics
With the growing use of Artificial Intelligence (AI) in remote sensing of mass movements, available datasets for model training and validation are increasingly needed. Although Differential Synthetic Aperture Radar Interferometry (DInSAR) is a widely used technique for studying mass movements, wrapped interferograms remain less exploited, and the importance of geomorphological expertise in their [...]
Design Rationale of the JcupLT Coupling Library: Lessons Learned from Jcup Development and Applications
Published: 2026-04-04
Subjects: Atmospheric Sciences, Other Oceanography and Atmospheric Sciences and Meteorology, Software Engineering
Coupling libraries are essential infrastructure for multi-component simulations in weather, climate, and earth system modeling. Jcup is a coupling library developed since 2007 and applied to a wide range of coupled simulations, including atmosphere–ocean coupling, land surface modeling, seismic–structural coupling, and AI-integrated simulations. Through nearly two decades of development and [...]
Identification of Stress-Resilient Maize Progenies under Drought and Low Nitrogen in West Africa Using Genotype × Environment Analysis and Multi-Trait Selection Indices
Published: 2026-05-17
Subjects: Agriculture
Maize productivity in West Africa is severely constrained by recurrent drought and low soil nitrogen availability, which results in strong environmental heterogeneity and complex genotype × environment interactions (G×E). Identifying breeding materials that combine productivity, stress resilience, and stability therefore requires analytical approaches that integrate multi-trait and [...]
Hot orogen behaviour, partial melting and ductile flow: Case study of the Damara Orogen, Namibia
Published: 2026-05-11
Subjects: Tectonics and Structure
The Damara Orogen in Namibia preserves an exceptional record of Neoproterozoic–Cambrian continent–continent collision during Gondwana assembly. It provides a natural laboratory suitable for testing thermomechanical models of hot orogens. We integrate regional-scale structural mapping from satellite imagery and aeromagnetic data with published lithostratigraphic, metamorphic, magmatic, and [...]