Preprints
Filtering by Subject: Education
Paddy Segmentation Using Google Earth Engine: A Remote Sensing Approach Abstract
Published: 2025-03-20
Subjects: Education, Engineering, Life Sciences
Paddy field segmentation using remote sensing is crucial for agricultural monitoring, yield prediction, and resource allocation. In this research, we employ Google Earth Engine (GEE) for paddy segmentation using Sentinel-2 satellite imagery. Our method leverages Normalized Difference Vegetation Index (NDVI) and Land Surface Water Index (LSWI) to mask paddy fields efficiently. We collected 2000 [...]
Some mechanical and thermal manifestations of the 1908 Tunguska event near its epicenter
Published: 2025-03-20
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. It is devoted to some manifestations near the epicenter of the event. Many of the manifestations were established back in the 1960s. Recently a couple of works have appeared that reveal previously undetected phenomena, namely, traces of exposure to high temperatures and high pressure. A [...]
Kimberlite, carbonatite and alkaline magmatic systems: definitions, origins, and strategic mineral resources
Published: 2025-02-27
Subjects: Education
This Chapter provides an overview of the nature and origin of kimberlites, carbonatites and alkaline silicate rocks, with emphasis on the strategic mineral deposits linked to these types of mantle-derived volcanism (e.g., diamonds and rare-earth elements). It is demonstrated that many of the critical raw materials hosted by carbonatites and alkaline silicate rocks are essential for the transition [...]
Formation of Mg-silicates in the microbial sediments of a saline, mildly alkaline coastal lake (Lake Clifton, Australia): environmental versus microbiological drivers
Published: 2025-02-11
Subjects: Education
Recent interest in Mg-rich silicate formation stems from their role as valuable paleoclimatic indicators in fluvio-lacustrine environments and their insights into metal geochemical cycling. Traditionally, Mg-silicate genesis in lacustrine contexts is linked to alkaline or saline conditions in closed, evaporitic basins. However, the discovery of interparticle amorphous kerolite-like Mg-silicates [...]
Inclusive Qualifying Exams Toolkit
Published: 2025-02-08
Subjects: Education, Physical Sciences and Mathematics
Doctoral qualifying or comprehensive exams are widely used in the earth and space sciences, yet research on assessment pervasively demonstrates that high-stakes exams are heavily biased and poor predictors of success. To address these issues and work towards broadening participation in these fields, this toolkit presents related-research and strategies for academic units looking to update their [...]
A New Theory of Global Climate and Ecosystem Change Based on Planetary Orbital Variations
Published: 2025-02-05
Subjects: Education, Physical Sciences and Mathematics
Traditional climate change research has primarily focused on internal factors of Earth, particularly the impact of human activities on greenhouse gas emissions. This paper proposes the "Mao's Theory of Global Climate and Ecosystem Change Based on Planetary Orbital Variations", which suggests that changes in Earth's climate and ecosystems are primarily driven by the orbital variations of external [...]
Exploring the Impact of Climate Change on Community Sustainability in Atlantic Canada: A Transdisciplinary Approach
Published: 2025-01-17
Subjects: Education, Social and Behavioral Sciences
This paper examines the significant impacts of climate change on community sustainability in Atlantic Canada, particularly for vulnerable populations. Rising temperatures and sea levels threaten livelihoods, infrastructure, and ecosystems, necessitating a transformative approach to avoid maladaptation. Current strategies primarily rooted in natural sciences and economic models lack the [...]
Influence and Prediction of Planetary Orbital Changes on Earth's Atmospheric Water Vapor Variations
Published: 2025-01-17
Subjects: Education, Physical Sciences and Mathematics
A few people have gradually realized that the superposition effect of different planets in the solar system on Earth under high-speed motion and dynamic equilibrium can sometimes trigger extreme natural disasters. Due to the relatively regular changes in the relative positions of the Sun, Moon, and Earth, this study considers these three planets as independent systems. The orbits of other planets [...]
Submarine fans in the Kribi-Campo sub-basin, offshore Cameroon: Geomorphology and stratigraphic evolution during the Late Cretaceous
Published: 2025-01-08
Subjects: Education
Evaluation of the InSightSeers and DART Boarders mission observer programmes
Published: 2025-01-04
Subjects: Education, Higher Education, Physical Sciences and Mathematics, Planetary Sciences
Encouraging diversity in planetary science requires making a particular effort to bring a broader range of people onto the mission teams that are the backbone of the field. Observer programmes, which offer early-career researchers the chance to embed within a mission team during a science meeting, are one way of doing this. Here we present a quantitative analysis of the effectiveness of two [...]
AI-Driven Decision-Making for Water Resources Planning and Hazard Mitigation Using Automated Multi Agents
Published: 2024-12-27
Subjects: Civil Engineering, Computational Engineering, Computer and Systems Architecture, Computer Engineering, Ecology and Evolutionary Biology, Education, Engineering, Environmental Engineering, Geotechnical Engineering, Higher Education, Hydraulic Engineering, Operations Research, Systems Engineering and Industrial Engineering, Risk Analysis, Scholarship of Teaching and Learning, Systems Engineering, Terrestrial and Aquatic Ecology, Transportation Engineering
This project simulates the Multi-Hazard Tournament (MHT) framework, a decision support system designed for the U.S. Army Corps of Engineers, using AI agents to enhance decisionmaking processes for flood mitigation and water resource management. The objective of the framework is to develop optimal strategies for protecting water resources, habitats, and communities within a defined budget. The [...]
Unlocking Geological Hydrogen Storage with Ammonia: An Effort for Net-Zero Future
Published: 2024-12-21
Subjects: Education, Engineering
Hydrogen gas (H2) generation systems, comprising carbon capture and storage technology (CCST) play a crucial role to achieve the U.N. Net Zero goal before 2050. However, a critical challenge in grid-scale H2 storage is the low volumetric energy density. One prospective approach is to use ammonia (NH3) as a chemical carrier for H2 and store it. This paper presents a state-of-the-art report on NH3 [...]
Evaluation and prediction of the Effects of Planetary Orbital Variations to Earth’s Temperature Changes
Published: 2024-12-11
Subjects: Education, Engineering, Physical Sciences and Mathematics
Existing climate studies mainly assessed the effect of greenhouse gases and aerosols, among other forcings on Earth’s temperature. None of them has not evaluated the effect of the planetary orbital changes on Earth’s temperature. Here, we deconvolved the effects of greenhouse gases and planetary orbital changes on Earth’s temperature and to forecast the latter at different time scales. Our [...]
AI-Assisted Educational Framework for Floodplain Manager Certification: Enhancing Vocational Education and Training Through Personalized Learning
Published: 2024-11-26
Subjects: Education, Engineering
Floodplain management is critical for mitigating flood risks and safeguarding communities. The FloodPlain Manager (FPM) certification is essential for professionals in this field, but current preparation methods often fall short in providing comprehensive, accessible, and engaging study resources. This research introduces a novel AI-assisted educational tool designed specifically for FPM [...]
Microplastic transport and settling in the ocean: an interactive online teaching model to communicate scaling in environmental pollution
Published: 2024-11-21
Subjects: Earth Sciences, Education, Environmental Sciences, Physical Sciences and Mathematics, Physics, Science and Mathematics Education
Microplastics pervade the sea surface, the water column, and the deep seafloor. They are vectors for other pollutants, such as heavy metals and persistent organic pollutants. A question remains as to how microplastics reach the seabed, over what time scales, and where they will end up. Many plastics initially float due to their low density, or to being incorporated into items with air cavities, [...]