Preprints
There are 6211 Preprints listed.
Seismic response analysis of corrugated steel wall under Earth load - Seismic Fault area far and near
Published: 2025-10-15
Subjects: Engineering
Abstract This study examines the seismic response of corrugated steel shear walls under land load-seismic seismic distant and near fault zone. Corrugated steel shear walls are used as an efficient lateral resistance system in earthquake-resistant structures due to their formability and high energy dissipation capacity. The use of corrugated steel sheets has several benefits, including increased [...]
A Collaborative Assessment of Coastal Ocean Acidification Monitoring in Maine & Standard Operating Procedures and Best Practices for the Collection of Continuous pH Data in Coastal Marine Environments
Published: 2025-10-15
Subjects: Earth Sciences, Environmental Monitoring, Oceanography and Atmospheric Sciences and Meteorology
The ‘Sensor Squad’ of the Maine Ocean Climate Collaborative is the product of a 2023 Maine Coastal and Marine Climate Action Fund grant to conduct “A two-year pilot project designed to address and overcome technological barriers to ocean acidification data collection, develop protocols to elevate quality assurance and ensure comparable data, and meet regularly to discuss project results and data [...]
Developing a prototype decision support framework to assess forest management scenarios as a nature-based decarbonization solution for the mining sector: A case study in British Columbia, Canada
Published: 2025-10-15
Subjects: Forest Management, Operations Research, Systems Engineering and Industrial Engineering
This study, realized in partnership with a leading global gold producer, explores how forest management nature-based solutions (NbS) can be integrated into decarbonization strategies to achieve carbon neutrality by 2050. NbS, including carbon sequestration in forests, are expected to play an important role in meeting decarbonization commitments in the mining sector. Our primary contribution is a [...]
A new chronostratigraphic anchor for the early Cambrian: Integrating δ¹³C chemostratigraphy and Bayesian astrochronology in West Gondwana (Anti-Atlas, Morocco)
Published: 2025-10-15
Subjects: Earth Sciences
The early Cambrian represents a critical interval in Earth’s history characterized by rapid biological innovation and significant perturbations in global carbon cycling. However, a comprehensive understanding of the processes at play and their spatial and temporal relationships is hindered by fossil provincialism, diachronous bioevents, and inadequate high-precision geochronology. The Tiout [...]
Machine learning approaches to Landsat change detection analysis
Published: 2025-10-15
Subjects: Environmental Health and Protection, Environmental Indicators and Impact Assessment, Environmental Monitoring, Environmental Sciences, Natural Resources and Conservation, Natural Resources Management and Policy, Other Environmental Sciences, Sustainability
The Landsat mission has captured images of the Earth’s surface for over 50 years, and the data have enabled researchers to investigate a vast array of different change phenomena using machine learning models. Landsat-based monitoring research has been influential in geography, forestry, hydrology, ecology, agriculture, geology, and public health. When monitoring Earth's surface change using [...]
Spatial and temporal variations in slip rate over millions of years on an extensional fault system: implications for seismic hazard
Published: 2025-10-14
Subjects: Tectonics and Structure
Slip rate is a key input for fault-based seismic hazard assessment, with temporal and spatial variations in slip rate along and between faults influencing earthquake size and recurrence. Temporal variations in slip rate have been attributed to earthquake clustering and anti-clustering in tectonically active settings. Here we explore the combined temporal and spatial assessment of slip rate [...]
Global deep learning model for delineation of optically shallow and optically deep water in Sentinel-2 imagery
Published: 2025-10-14
Subjects: Environmental Indicators and Impact Assessment, Environmental Monitoring, Environmental Sciences, Natural Resources and Conservation, Sustainability, Water Resource Management
In aquatic remote sensing, algorithms commonly used to map environmental variables rely on assumptions regarding the optical environment. Specifically, some algorithms assume that the water is optically deep, i.e., that the influence of bottom reflectance on the measured signal is negligible. Other algorithms assume the opposite and are based on an estimation of the bottom-reflected part of the [...]
FluvDepoSet: A dataset of synthetic 3D models of fluvial deposits
Published: 2025-10-14
Subjects: Geology, Geomorphology, Numerical Analysis and Scientific Computing, Sedimentology, Stratigraphy
Sediments deposited by rivers constitute a key source for the water, energy, and raw materials that fuel our everyday lives. To find and manage these resources, we need to predict the spatial distribution of those fluvial deposits in the subsurface. This remains a major challenge due to the scarcity and poor quality of subsurface data, but also because traditional modeling approaches struggle to [...]
Eocene lacustrine–volcaniclastic deposits at Aliabad (Central Iran): A possible Proto-basin of the Oligo-Miocene Qom Formation
Published: 2025-10-14
Subjects: Earth Sciences, Geology, Paleobiology, Paleontology, Physical Sciences and Mathematics, Sedimentology, Stratigraphy, Volcanology
Central Iran hosts intricate Cenozoic successions where the Oligo‑Miocene Qom Formation forms a major hydrocarbon reservoir. The stratigraphic and paleoenvironmental relationship of the Eocene Aliabad deposits to this formation has been controversial. This study integrates stratigraphic logging, petrography, geochemistry (XRD/XRF), and ichnology on 46 thin sections from Aliabad and 157 [...]
Coral reef and mangrove interplay during Mid- and Late-Holocene sea-level changes in Belitung Island, Indonesia
Published: 2025-10-14
Subjects: Earth Sciences
Coral reefs and mangrove forests are susceptible coastal ecosystems, particularly in light of intense human-induced pressures, including the anticipated sea-level rise in the 21st century. Here, we explore the chronology and interconnectedness between coral reef and mangrove interplay in response to Holocene sea-level changes, taking Belitung Island, Indonesia, as a case study. We describe the [...]
Vector Graphics-Based Geospatial Contour Maps: A Web-Native Interactive Approach for Modern Geospatial Data Science Applications
Published: 2025-10-14
Subjects: Computer Engineering, Computer Sciences, Earth Sciences, Engineering, Environmental Sciences, Graphics and Human Computer Interfaces
Visualizing scalar fields (e.g., temperature, precipitation etc.) on the web is often done via pre‑rendered raster tiles. While simple to serve and fast to access, rasters limit interactivity (feature picking, dynamic styling) and typically require heavy pre‑generation pipelines. Raster tiles remain the dominant method for web-based scalar field visualization, but they are storage-heavy and [...]
Reframing natural organic matter research through compositional data analysis
Published: 2025-10-13
Subjects: Life Sciences
Compositional data (CoDa) are prevalent in environmental research. They represent parts of a whole, such as percentages, proportions, and relative or absolute abundance. They are arrays of positive data that convey relevant information in the ratios between their components. Standard statistical techniques developed for real random observations often yield spurious results and are therefore [...]
WS3: An open-source Python framework for integrated simulation and optimization of forest landscape and wood supply systems
Published: 2025-10-13
Subjects: Forest Management, Operations Research, Systems Engineering and Industrial Engineering
Transparent decision support for forest landscapes demands integrated scheduling, carbon account-ing, and spatial reporting. WS3 is an open-source Python framework that unifies modular simu-lation, solver-backed Model I optimization, and raster allocation in a single workflow. The systemingests Woodstock-style inventories, actions, and scenarios; exposes an explicit data model; andautomates [...]
Nutrition in Abrupt Sunlight Reduction Scenarios: analysis and prevention of malnutrition in low-income regions
Published: 2025-10-13
Subjects: Agriculture, Food Science, Life Sciences, Medicine and Health Sciences, Public Health
Purpose: An abrupt sunlight reduction scenario (ASRS) can be triggered by a nuclear war, a large volcanic eruption, or an asteroid strike, resulting in global agricultural collapse. A wide portfolio of resilient food interventions has been developed to address these issues, but even if they succeed in providing sufficient food energy for the global population, economic inequality could still [...]
Calcareous nannofossil assemblages from El Kef (Tunisia) reveal strong regional and bathymetric controls on Northern Hemisphere recovery patterns following the Cretaceous/Paleogene (K/Pg) mass extinction
Published: 2025-10-12
Subjects: Earth Sciences, Physical Sciences and Mathematics
The Cretaceous-Paleogene (K-Pg) mass extinction event ~66.0 million years ago (Ma), led to the elimination of over 75% of species on Earth and drove large-scale ecological reorganization in both the marine and terrestrial realms. In particular, the nearly complete extinction of calcareous nannoplankton-the most dominant phytoplankton group at the end of the Cretaceous- led to a shift in community [...]