Results 1 to 10 of about 20,099 (254)

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

Development of a variogram procedure to identify spatial outliers using a supplemental digital elevation model

open access: goldJournal of Hydrology X, 2019
When using a ground water elevation dataset for the development of a ground water model, it is prudent to first evaluate the quality of the data before using it in a ground water model.
Zane D. Helwig   +3 more
doaj   +2 more sources

Inference for variograms [PDF]

open access: yesComputational Statistics & Data Analysis, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bowman, A.W., Crujeiras, R.M.
openaire   +4 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

Evaluation of Spatio-Temporal Variogram Models for Mapping Xco2 Using Satellite Observations: A Case Study in China [PDF]

open access: bronzeIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2015
Greenhouse Gases Observing Satellite (GOSAT), which measures column-averaged carbon dioxide dry air mole fractions (Xco2) from space, provides new data sources to improve our understanding of carbon cycle.
Lijie Guo   +5 more
doaj   +2 more sources

The textures of sarcoidosis: quantifying lung disease through variograms. [PDF]

open access: hybridPhys Med Biol
Lippitt WL   +12 more
europepmc   +2 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

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

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

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