Results 1 to 10 of about 19,231 (196)

A neural network-based automatic semi-variogram modeling approach for geomagnetic map construction in multi-source indoor and outdoor navigation [PDF]

open access: yesScientific Reports
High-precision geomagnetic maps are essential for geomagnetic-assisted navigation, yet their construction is constrained by kriging interpolation’s reliance on accurately modeled semi-variogram.
Chengsheng Zhan   +3 more
doaj   +2 more sources

Interpolation methods for spatial distribution of groundwater mapping electrical conductivity [PDF]

open access: yesScientific Reports
This study was carried out to develop a conceptual framework for determining the best interpolation method which mainly is employed to calculate the variability maps of electrical conductivity (EC) in neighboring regions.
Saeed Salehi   +4 more
doaj   +2 more sources

Use of Variogram Parameters in Analysis of Hyperspectral Imaging Data Acquired from Dual-Stressed Crop Leaves

open access: yesRemote Sensing, 2012
A detailed introduction to variogram analysis of reflectance data is provided, and variogram parameters (nugget, sill, and range values) were examined as possible indicators of abiotic (irrigation regime) and biotic (spider mite infestation) stressors ...
Christian Nansen
exaly   +3 more sources

SciKit-GStat 1.0: a SciPy-flavored geostatistical variogram estimation toolbox written in Python [PDF]

open access: yesGeoscientific Model Development, 2022
Geostatistical methods are widely used in almost all geoscientific disciplines, i.e., for interpolation, rescaling, data assimilation or modeling. At its core, geostatistics aims to detect, quantify, describe, analyze and model spatial covariance of ...
M. Mälicke
doaj   +1 more source

Research on variogram analysis method for 3D modeling of sandstone reservoir [PDF]

open access: yesE3S Web of Conferences, 2023
Analysis of variogram is a necessary step in 3D stochastic modeling, and different settings of variograms can directly affect the final distribution of model attribute.
Lv Yingbo, Liang Yifei, Wang HongXue
doaj   +1 more source

Anomaly detection in geostatistical models with application to groundwater level data in the Gaza Coastal Aquifer [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2022
In geostatistics, the detection of anomalous observations has a particular importance because of the changes they can create in environmental and geological patterns. Few methods for detecting such observations in univariate data have been proposed for
Ali H. Abuzaid   +2 more
doaj   +1 more source

Spatial Prediction for Real Data using Kriging Technique [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2018
This study investigates the prediction of unstable random spatial process using the Ordinary Kriging technique, based on the variogram function Y(X,Y) in finding out the predictors, and the universal multivariate technique, which has been applied by ...
Shaymaa Riyadh Thanoon Thanoon
doaj   +1 more source

Inference for variograms [PDF]

open access: yesComputational Statistics & Data Analysis, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Adrian W. Bowman, Rosa M. Crujeiras
openaire   +2 more sources

Planning spatial sampling of the soil from an uncertain reconnaissance variogram [PDF]

open access: yesSOIL, 2017
An estimated variogram of a soil property can be used to support a rational choice of sampling intensity for geostatistical mapping. However, it is known that estimated variograms are subject to uncertainty.
R. M. Lark   +8 more
doaj   +1 more source

On Robustness for Spatio-Temporal Data

open access: yesMathematics, 2022
The spatio-temporal variogram is an important factor in spatio-temporal prediction through kriging, especially in fields such as environmental sustainability or climate change, where spatio-temporal data analysis is based on this concept.
Alfonso García-Pérez
doaj   +1 more source

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