Skip to main content

Preprints

There are 5987 Preprints listed.

Active Learning with Deep Autoencoders for Seismic Facies Interpretation

Ahmad Mustafa, Ghassan AlRegib

Published: 2023-04-26
Subjects: Geophysics and Seismology

Machine learning-assisted seismic interpretation tasks require large quantities of labeled data annotated by expert interpreters, which is a costly and time-consuming process. Where existing works to minimize dependence on labeled data assume the data annotation process to already be completed, active learning---a field of machine learning---works by selecting the most important training samples [...]

Earth tides can reactivate shallow faults and trigger seabed methane emissions

Nabil Sultan, Vincent Riboulot, Stephanie Dupré, et al.

Published: 2023-04-26
Subjects: Earth Sciences

The role of solid Earth tide in fault reactivation has significant implications for understanding earthquake triggering, carbon sequestration, and the global carbon budget. Despite extensive research on this topic over the years, the relationship between Earth tide and fault reactivation remains unclear. In this study, we investigate the potential influence of solid Earth tide on the reactivation [...]

Making Planets on Earth: How Experimental Petrology Is Essential to Planetary Exploration

Kayla Iacovino, Nicole G Lunning, Gordon Moore, et al.

Published: 2023-04-26
Subjects: Planetary Geochemistry, Planetary Sciences

Our knowledge of the evolution of the solar system relies upon our ability to interpret a limited set of observations, including geochemical data from returned samples and meteorites, remotely sensed data from spacecraft and telescopes, and information measured in situ via landers and rovers. Our ability to obtain these data is constantly improving in quality and quantity, but the understanding [...]

A comparative study of transfer learning methodologies and causality for seismic inversion with temporal convolutional networks

Ahmad Mustafa, Ghassan AlRegib

Published: 2023-04-25
Subjects: Geophysics and Seismology

Machine learning-based seismic inversion methods suffer from high labeled data requirement in the absence of which they may fail to generalize. Recent data-driven inversion methodologies based on temporal convolutional networks use 2-D sequence models and transfer learning to unburden the algorithm from high training data requirements. Such methods are restricted in that they only model seismic [...]

Workshop report: Modelling volatile behaviour in magmas

Ery Catherine Hughes, Shuo Ding, Kayla Iacovino, et al.

Published: 2023-04-23
Subjects: Physical Sciences and Mathematics

Volatiles are a critical component of magmas, driving volcanic eruptions, creating and modifying planetary atmospheres, and generating ore deposits. There has been an immense amount of work quantifying the solubility of individual volatile species in a wide variety of magma compositions and the creation of various modelling capabilities to look at magmatic degassing.  This workshop aimed to [...]

CDR modeled in MAGICC to return to preindustrial temperatures by 2100

Shannon A Fiume

Published: 2023-04-23
Subjects: Physical Sciences and Mathematics

Scenario pathways greatly inform the opportunity space of possible future climates. The multistep experiment tests the Alternative Method to Determine a Carbon Dioxide Removal Target’s thesis by simulating the novel pathway '300x2050,' SSP1-2.6, and SSP1-1.9 comparing within green growth development in MAGICC 6.8 by removing all cumulative anthropogenic CO₂ over 80 years and phasing out [...]

In-situ frictional behavior of subducting sediment in the shallow Nankai Trough

Hanaya Okuda, Manami Kitamura, Miki Takahashi, et al.

Published: 2023-04-22
Subjects: Geology, Geophysics and Seismology, Sedimentology, Tectonics and Structure

The transition from smectite to illite at around the depth with temperature of ~150 °C has long been hypothesized as one of controlling factors of the updip limit depth of the seismogenic zone of subduction zones. Although illite has a higher friction coefficient than smectite, previous friction experiments have little reported that the smectite-illite transition accompanies the transition from [...]

The Dynamics of the India-Eurasia Collision: Faulted Viscous Continuum Models Constrained by High-Resolution Sentinel-1 InSAR and GNSS Velocities

Jin Fang, Greg Houseman, Tim J Wright, et al.

Published: 2023-04-22
Subjects: Earth Sciences

The dynamics of lithospheric deformation in the India-Eurasia collision zone has been debated over many decades. Here we test a two-dimensional (2-D) Thin Viscous Shell (TVS) approach that has been adapted to explicitly account for displacement on major faults and investigate the impact of lateral variations in depth-averaged lithospheric strength. We present a suite of dynamic models to explain [...]

From strain to displacement: using deformation to enhance distributed acoustic sensing applications

Alister Trabattoni, Francesco Biagioli, Claudio Strumia, et al.

Published: 2023-04-21
Subjects: Physical Sciences and Mathematics

Over a period of less than a decade, Distributed Acoustic Sensing (DAS) has become a well-established technology in seismology. For historical and practical reasons, DAS manufacturers usually provide instruments that natively record strain (rate) as the principal measurement. While at first glance strain recordings seem related to ground motion waveforms (displacement, velocity, acceleration), [...]

Assessing the potential of low transmissivity aquifers for ATES systems: a case study in Flanders (Belgium)

Luka Tas, David Simpson, Thomas Hermans

Published: 2023-04-21
Subjects: Geology, Sustainability, Water Resource Management

The Member States of the European Union pledged to reduce greenhouse gas emissions by 80-95% by 2050. Shallow geothermal systems might substantially contribute by providing heating and cooling in a sustainable way through seasonally storing heat and cold in the shallow ground (<200m). When the minimum yield to install a cost-effective aquifer thermal energy storage (ATES) system cannot be met, [...]

Global multi-hazard risk assessment in a changing climate

Zélie Stalhandske, Carmen B. Steinmann, Simona Meiler, et al.

Published: 2023-04-20
Subjects: Applied Statistics, Climate, Numerical Analysis and Scientific Computing, Risk Analysis

Natural hazards pose significant risks to people and assets in many regions of the world. Quantifying associated risks is crucial for many applications such as adaptation option appraisal and insurance pricing. However, traditional risk assessment approaches have focused on the impacts of single hazards, ignoring the effects of multi-hazard risks and potentially leading to underestimations or [...]

On Constructing Limits-of-Acceptability in Watershed Hydrology using Decision Trees

Abhinav Gupta, Rao Govindaraju, Pin-Ching Li, et al.

Published: 2023-04-20
Subjects: Physical Sciences and Mathematics

A hydrological model incurs three types of uncertainties: measurement, structural and parametric uncertainty. For instance, in rainfall-runoff models, measurement uncertainty exists due to errors in measurements of rainfall and streamflow data. Structural uncertainty exists due to errors in mathematical representation of hydrological processes. Parametric uncertainty is a consequence of our [...]

High-resolution geodetic strain rate field reveals dynamics of the India-Eurasia collision

Tim J Wright, Greg Houseman, Jin Fang, et al.

Published: 2023-04-20
Subjects: Physical Sciences and Mathematics

Determining the distribution of seismic hazard in the continents requires an understanding of how much deformation is accommodated by major faults. Quantifying the role of major faults in continental deformation has been hampered by a lack of high-resolution observations in the deforming interiors of continents. By combining surface movement data derived from 22,000 satellite radar images with [...]

Analysis of factors influencing the efficiency of agricultural cold chain logistics enterprises based on intuitionistic Fuzzy-DEMATEL Method

Na Li, Chuijiang Guo, YuTao Liu

Published: 2023-04-20
Subjects: Civil and Environmental Engineering

In recent years, the No. 1 document of the Chinese Party Central Committee has repeatedly mentioned the need to strengthen the agricultural logistics industry and the rapid and healthy development of the cold chain logistics industry, and it is urgent to establish and cultivate some agricultural cold chain logistics enterprises with market competitiveness. In this paper, by considering the green [...]

Aboveground biomass estimates from UAV LiDAR improved via contextual learning in a Norway spruce forest

Jaime C Revenga, Stefan Oehmcke, Mana Gharun, et al.

Published: 2023-04-19
Subjects: Engineering, Life Sciences, Physical Sciences and Mathematics

Forest structure analysis and biomass prediction systems are key tools for advancingforest trait-based ecology and management. Surveys using Unmanned Aerial Vehicles(UAV) and Light Detection and Ranging (LiDAR) systems have contributedto this field with increased accuracy in tree phenotyping. Moreover, methods combiningUAV LiDAR surveying and machine learning (ML) have also emerged to [...]

search

You can search by:

  • Title
  • Keywords
  • Author Name
  • Author Affiliation