Preprints
Filtering by Subject: Earth Sciences
Granular column collapse: Analysing the effects of gravity levels
Published: 2024-11-20
Subjects: Earth Sciences, Engineering
Flooding, nonlinear dynamics and Jensen’s inequality: Analyzing the damping and amplification of inundation extent with river discharge nonstationarity
Published: 2024-11-13
Subjects: Civil and Environmental Engineering, Earth Sciences, Engineering, Hydrology, Risk Analysis
Sensing The Dynamics of Small Landholding in India through Earth Observation: A Comprehensive Review
Published: 2024-11-10
Subjects: Agriculture, Earth Sciences, Environmental Sciences, Food Science, Geography, Nature and Society Relations, Physical and Environmental Geography, Remote Sensing, Spatial Science
Fragmentation or the breakdown of landholdings to smaller parcels has an adverse impact on crop yields and productivity because of its uneconomic operational sizes. This comprehensive review reflects the insights into the complex dynamics of small landholding (SLs) in India by leveraging earth observation (EO) based sensing technology through synthesizing existing literature, methodologies and [...]
Dictionary Learning with Convolutional Structure for Seismic Data Denoising and Interpolation
Published: 2024-11-09
Subjects: Earth Sciences, Electrical and Computer Engineering, Engineering, Geophysics and Seismology, Physical Sciences and Mathematics, Signal Processing
Seismic data inevitably suffers from random noise and missing traces in field acquisition. This limits the utilization of seismic data for subsequent imaging or inversion applications. Recently, dictionary learning has gained remarkable success in seismic data denoising and interpolation. Variants of the patch-based learning technique, such as the K-SVD algorithm, have been shown to improve [...]
Clinopyroxene archives of magma redox in ocean island basalts: insights from thermodynamic modelling
Published: 2024-11-07
Subjects: Earth Sciences
Fault Representation in Structural Modelling with Implicit Neural Representations
Published: 2024-11-01
Subjects: Earth Sciences
Implicit neural representations have been demonstrated to provide a flexible and scalable framework for computer graphics and three-dimensional modelling and, consequently, have found their way also into geological modelling. These networks are feature-based and resolution-independent, making them effective for modelling geological structures from scattered interface points, units, and structural [...]
Geological and Environmental Implications of Enhanced Oil Recovery Techniques: Balancing Efficiency with Sustainability
Published: 2024-10-31
Subjects: Earth Sciences, Environmental Sciences, Geology, Oil, Gas, and Energy, Physical Sciences and Mathematics
This research paper explores the geological and environmental impacts of enhanced oil recovery (EOR) technology, focusing on the balance between efficiency and sustainability in fossil fuel extraction. EOR methods, including thermal recovery, gas injection, and chemical flooding, are critical to maximizing reservoir recovery, especially as global energy demand increases and conventional reserves [...]
Statistical properties and modelled duration of an intracontinental earthquake sequence: 2021 Mw 5.9 Woods Point earthquake, Australia
Published: 2024-10-28
Subjects: Earth Sciences
We investigate the 2021 moment magnitude (Mw) 5.9 Woods Point earthquake aftershock sequence (WPAS) in Victoria, Australia. WPAS Gutenberg-Richter b-values range from 0.76 to 1.07 and depend upon the earthquake magnitude type used (Mw vs Ml) and minimum completeness magnitude (Mc). The WPAS Modified Omori’s law p-value of 0.83~0.84 suggests slower aftershock decay rates, while the modelled [...]
Relative role of rock erodibility and sediment load in setting channel slope of mountain rivers
Published: 2024-10-27
Subjects: Earth Sciences
Rock strength influences channel slope by altering substrate erodibility and the size of sediments supplied to the channels. Although the frequent presence of knickpoints at lithological boundaries indicates that rock erodibility significantly determines channel morphology, a growing body of field evidence suggests that the coarse sediment supply from hard rock units is a primary factor in [...]
Station-orientation catalog for Australian broadband seismic stations
Published: 2024-10-26
Subjects: Earth Sciences
gations in and around Australia. Although two horizontal components are generally assumed to be oriented in the north and east directions, as reported by data providers, misorientations of horizontal components from the true geographic north direction cannot be avoided in practical field observations, even in the well-maintained permanent stations. In this report, we applied a polarization [...]
Application of machine learning methods to forecast petrophysical properties in basalts of the Serra Geral Group: Implications for carbon storage
Published: 2024-10-22
Subjects: Artificial Intelligence and Robotics, Computer Sciences, Earth Sciences, Environmental Sciences, Geophysics and Seismology, Oil, Gas, and Energy, Physical Sciences and Mathematics
This study applies machine learning techniques for forecasting petrophysical properties (density, porosity, and permeability) in the basalts of the Serra Geral Group, located in the Paraná Basin, Brazil. These properties are crucial for the successful implementation of carbon capture and storage (CCS), an important technology to combat climate change. Employing machine learning models—XGBoost, [...]
Computational Modeling of Climate Change Impacts on Flood Inflows Using Remote Sensing and SWAT: A Case Study of Ban Chat Reservoir, Northern Vietnam
Published: 2024-10-22
Subjects: Earth Sciences, Environmental Sciences, Numerical Analysis and Computation, Oceanography and Atmospheric Sciences and Meteorology, Physical Sciences and Mathematics
This study examines the changes in land cover and three water quality indicators (chlorophyll-a, colored dissolved organic matter, turbidity) using Sentinel-2 imagery in the Ban Chat hydropower area in Northern Vietnam during the period of 2016--2024. To assess the potential impact of flood flows into the Ban Chat reservoir, key information is extracted from remote sensing data, which is the [...]
DARTS: Multi-year database of AI-detected retrogressive thaw slumps in the circum-arctic permafrost region
Published: 2024-10-20
Subjects: Artificial Intelligence and Robotics, Computer Sciences, Earth Sciences, Geomorphology, Physical Sciences and Mathematics
Retrogressive Thaw Slumps (RTS) and Active Layer Detachment Slides (ALD) are widespread thermal mass-wasting hillslope failures triggered by thawing permafrost. Despite increasing rates of these failures, knowledge about their pan-arctic spatial and temporal distribution remains limited. We present the Database of AI-detected Arctic RTS and ALD footprints (DARTS), the largest hillslope [...]
deeptime: an R package that facilitates highly customizable visualizations of data over geological time intervals
Published: 2024-10-18
Subjects: Earth Sciences, Geology, Paleobiology, Paleontology, Stratigraphy
Data visualization is a key component of any scientific data analysis workflow and is vital for the summarization and dissemination of complex ideas and results. One common hurdle across the Earth Sciences and other scientific fields remains the effective and reproducible visualization of data over long time intervals (104 – 107 years). Here I introduce the R package deeptime, which provides [...]
Phanerozoic thermochronology record of Afro-Arabia through space and time
Published: 2024-10-18
Subjects: Earth Sciences, Geochemistry, Physical Sciences and Mathematics
Low-temperature thermochronology has been widely used in eastern Africa and Arabia (Afro-Arabia) to investigate the long-term thermal evolution of the crust in response to Phanerozoic tectonism. Yet, utilisation of this invaluable thermochronology record to inform numerical investigations into the long-term tectonothermal, geodynamic and landscape evolution of the region has been limited by the [...]