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Showing 1 to 14 of 14 for “"cokriging"”.
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Determination of Reservoir Characteristics Using Geostatistical Analysis
… Geostatistical methods, such as kriging, cokriging, and sequential simulation have been applied to integrate well-log data and seismic attributes. However, conventional deterministic methods of geostatistics, kriging and cokriging often have difficulty identifying the characteristics of …
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Coal resource characterization using the theory of coregionalized variables
… whether the joint estimation technique of cokriging may be used to utilize intervariable correlations in increasing the accuracy of estimation. Seam thickness, density, ash, calorific value, and sulphur have been studied to determine whether they are cross-correlated. Significant …
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A comparison of spatial interpolation techniques in temperature estimation
… Due to the additional effort kriging and cokriging entails, it was decided to compare the effectiveness of kriging and cokriging in estimating mean, maximum, and minimum temperature at unsampled locations with less computationally intensive interpolation techniques such as inverse distance …
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Modeling forest stand structure using geostatistics, geographic information systems, and remote sensing
… kriging with second-degree trend surface, cokriging, and disjunctive kriging) with three traditional estimation methods (polygonal mapping, inverse distance weighting, and inverse distance weighting squared). These eight techniques were used to spatially interpolate the number of stems, …
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Optimizing peak gust and maximum sustained wind speed estimates from mid-latitude wave cyclones
… covariates were utilized in conjunction with the cokriging interpolation technique and improved the interpolated wind surfaces for five wind storms that impacted both the mountainous and topographically-varied Alps region and the coastal regions of Europe. Land cover alone reduced station-measured …
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Evaluación de recursos recuperables basada en métodos multivariables
… de estimación multivariable, tales como el cokriging con medias relacionadas. En la primera parte se utilizará la dependencia entre leyes de cobre y cobre soluble para realizar la estimación y luego se aplicará el cokriging para la ley de hierro y la gravedad específica, ya que luego del …
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Soil Moisture Estimation From Soil Spectral Characteristics in a Precision Farming Environment
… data was used to create moisture maps. Use of a cokriging technique generated more detailed soil moisture maps than the limited data alone. This method shows potential for development as part of a data fusion technique to generate moisture maps from a minimum of samples.
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Compositions, logratios and geostatistics: An application to iron ore
… method against the commonly implemented ordinary cokriging method. The sample data are production blast cuttings analyses drawn from a producing iron ore mine in Western Australia. Previous studies using the high spatial density blast hole data and compositional geostatistical approach returned …
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Communication-Aware, Scalable Gaussian Processes for Decentralized Exploration
… a set of measurements. We compare kriging to cokriging with vehicle range as a secondary variable using a simple approximate linear-log model of the communication performance. Next, we propose a model-based learning methodology for the prediction of underwater acoustic performance using a …
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Changes in hydrological extremes and climate variability in the Severn Uplands
… bias where gauge rainfall was interpolated using cokriging) and then gauge<br/>precipitation which had the largest prediction accuracy. Model accuracy was sufficient<br/>using the gauge corrected radar and gauge precipitation data as inputs, so both were altered<br/>for future predictions to …
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Spatial verification and validation of datasets in fluid dynamics
… experimental and numerical data was achieved by cokriging, and is demonstrated in situations where experimental data is missing or sparse but may be inferred by the secondary numerical data with which it is well correlated. A statistic describing whole-field correlation on the basis of functional …
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Untersuchungen zur räumlichen Analyse und Visualisierung von Mietpreisdaten für Immobilienportale
… benötigen (Kriging with external drift, Ordinary Cokriging), kaum zu valideren Mietpreisschätzergebnissen gelangen als die Methode des Ordinary Kriging, die keine Sekundärvariablen benötigt. Die Methoden Random Forest aus dem Maschinellen Lernen und die Geographisch Gewichtete Regression hingegen …
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Evaluation of Spatial Interpolation Techniques Built in the Geostatistical Analyst Using Indoor Radon Data for Ohio,USA
… and mid-range estimates, it has been found that cokriging is a suitable technique for peak-end estimates, and the radial basis function (RBF) technique meets all the acceptable criteria for low-end and mid-range estimates. After considering the closeness of the greater number of measures to their …
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Geostatistical modelling of recreational fishing data: A fine-scale spatial analysis
The sustainability of recreational fisheries resources rely on effective management of the fishery which includes monitoring of any changes in the fishery. In order to facilitate the ongoing management of the recreational fishery, an understanding of the spatial dynamics of catch per unit effort …