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  1. Non-Gaussian Ensemble Optimization

    Ensemble-based optimization (EnOpt), commonly used in reservoir management, can be seen as a special case of a natural evolution algorithm. Stein’s...

    Mathias M. Nilsen, Andreas S. Stordal, ... Kjersti S. Eikrem in Mathematical Geosciences
    Article Open access 28 June 2024
  2. Geostatistical modelling of rainfall in Fars Province of Iran using non-Gaussian spatial process

    Prediction of response values is a primary goal in many applications. The standard approach to this problem is kriging which is essentially a linear...

    Hamid Zareifard, Mehdi Mahbod, Zohreh Mohammadi in Theoretical and Applied Climatology
    Article 03 June 2023
  3. A spatial-varying non-isotropic Gaussian-based convolution filter for smoothing GRACE-like temporal gravity fields

    Abstract

    The strong noise of satellite-based Time-Variable Gravity (TVG) field is often suppressed by applying the averaging filters. However, how to...

    Fan Yang, Shuhao Liu, Ehsan Forootan in Journal of Geodesy
    Article 06 July 2024
  4. Variational quality control of non-Gaussian innovations and its parametric optimizations for the GRAPES m3DVAR system

    The magnitude and distribution of observation innovations, which have an important impact on the analyzed accuracy, are critical variables in data...

    Jie He, Yang Shi, ... Xulin Ma in Frontiers of Earth Science
    Article 06 July 2022
  5. Seismic safety assessment with non-Gaussian random processes for train-bridge coupled systems

    Extensive high-speed railway (HSR) network resembled the intricate vascular system of the human body, crisscrossing mainlands. Seismic events, known...

    Han Zhao, Lei Gao, ... ** **ang in Earthquake Engineering and Engineering Vibration
    Article 24 January 2024
  6. Structural Description of Geophysical Random Fields with Non-Gaussian Statistics

    Abstract

    This article considers an approach to the describing random fields as a set of intense structures with random parameters. Such structures are...

    Article 01 April 2023
  7. Non-Gaussian Copula Simulation: A New Approach to Recoverable Reserve Estimation in Indian Open-pit Copper Deposit

    In a prominent open-pit copper mine in India, a non-Gaussian copula-based simulation model is developed to estimate recoverable reserves. This...
    Conference paper 2023
  8. Hydraulic Fracture Propagation in Layered Heterogeneous Rocks with Spatially Non-Gaussian Random Hydromechanical Features

    This study proposes a stochastic method to analyse the propagation of hydraulic fractures affected by layered heterogeneity in rocks in a...

    Nima Sarmadi, Matthew Harrison, ... Quentin J. Fisher in Rock Mechanics and Rock Engineering
    Article Open access 03 June 2024
  9. Variational Quality Control of Non-Gaussian Innovations in the GRAPES m3DVAR System: Mass Field Evaluation of Assimilation Experiments

    The existence of outliers can seriously influence the analysis of variational data assimilation. Quality control allows us to effectively eliminate...

    Jie He, Xulin Ma, ... Ziniu **ao in Advances in Atmospheric Sciences
    Article 24 June 2021
  10. Acoustic Wave Reflection Coefficient from Large-Scale Irregularities Weakly Non-Gaussian Sea Surface

    Based on statistical estimates of sea surface elevations obtained from direct wave measurements, the properties of the ocean–atmosphere boundary as a...
    Chapter 2023
  11. Estimation of source parameters using a non-Gaussian probability density function in a Bayesian framework

    Source parameters represent key factors in seismic hazard assessment and understanding source physics of earthquakes. In addition to conventional...

    Nana Yoshimitsu, Takuto Maeda, Tomonari Sei in Earth, Planets and Space
    Article Open access 08 March 2023
  12. Identification of non-Gaussian parameters in heterogeneous aquifers by a modified probability conditioning method through hydraulic-head assimilation

    Parameter estimation with uncertainty quantification is essential in groundwater modeling to ensure model quality; however, parameter estimation,...

    Tian Lan, **aoqing Shi, ... Tingxi Liu in Hydrogeology Journal
    Article 13 October 2020
  13. Non-Gaussian Copula Simulation for Estimation of Recoverable Reserve in an Indian Copper Deposit

    The present study developed a geostatistical simulation technique based on non-Gaussian copula for recoverable reserve estimation considering support...

    Krishna Dinda, Biswajit Samanta in Natural Resources Research
    Article 07 September 2020
  14. How to correctly apply Gaussian statistics in a non-stationary climate?

    Time series with a significant trend, as is now being the case for the temperature in the course of climate change, need a careful approach for...

    Reinhold Steinacker in Theoretical and Applied Climatology
    Article Open access 05 April 2021
  15. Non-Gaussian Lagrangian Stochastic Model for Wind Field Simulation in the Surface Layer

    Wind field simulation in the surface layer is often used to manage natural resources in terms of air quality, gene flow (through pollen drift), and...

    Chao Liu, Li Fu, ... Junming Wang in Advances in Atmospheric Sciences
    Article Open access 10 December 2019
  16. Contaminant Spill in a Sandbox with Non-Gaussian Conductivities: Simultaneous Identification by the Restart Normal-Score Ensemble Kalman Filter

    The joint identification of the parameters defining a contaminant source and the heterogeneous distribution of the hydraulic conductivities of the...

    Zi Chen, Teng Xu, ... Andrea Zanini in Mathematical Geosciences
    Article 12 March 2021
  17. A non-Gaussian random field model for earthquake slip

    The present study proposes a methodology to generate stochastic slip field with desired probability structure and spectral characteristics. The...

    J. Dhanya, S. T. G. Raghukanth in Journal of Seismology
    Article 10 June 2019
  18. Spatial Multivariate Morphing Transformation

    Earth science phenomena, in particular mineralization of ore deposits, can be characterized by the spatial and statistical features of multivariate...

    Sebastian Avalos, Julian M. Ortiz in Mathematical Geosciences
    Article 19 April 2023
  19. Characterization of Solute Mixing in Heterogeneous Media by Means of Fractal Dilution Index

    Many theoretical and experimental results show that solute mixing in heterogeneous porous media exhibits non-Fickian behaviors, in which the dilution...

    Yingjie Liang, Shengjie Yan, ... Wei Xu in Transport in Porous Media
    Article 04 April 2023
  20. Iterative Gaussianisation for Multivariate Transformation

    Multivariate conditional simulations can be reduced to a set of independent univariate simulations through multivariate Gaussian transformation of...
    A. Cook, O. Rondon, ... G. Booth in Geostatistics Toronto 2021
    Conference paper Open access 2023
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