Results 31 to 40 of about 3,769,150 (256)

Spatial Estimation of Sodium Adsorption Ratio (SAR) and Chlorine in Groundwater Using Geostatistical Methods [PDF]

علوم و مهندسی آبیاری, 2011
Having knowledge of groundwater quality in arid and semi-arid areas can result sustainability of this valuable resource. For this reason, it is necessary to estimate Sodium Adsorption Ratio (SAR) and Chlorine in the groundwater quality accurately ...
A. Izadi, M. Delghandi, A. R. Hooshmand, M. Farasati   +3 more
doaj  

Optimale Methoden zur Interpolation von Umweltvariablen in Geographischen Informationssystemen [PDF]

Geographica Helvetica
In Geographie Information Systems there are many applications where the objeets of study can only be described by sampling information at selected point locations and by subsequent interpolation.
P. A. Burrough
doaj   +1 more source

Modeling of the Vertical Movements of the Earth’s Crust in Poland with the Co-Kriging Method Based on Various Sources of Data

Applied Sciences, 2020
The main aim of this study was to evaluate the applicability of the co-kriging method for modeling the vertical movements of the Earth’s crust based on data acquired with the use of precision leveling techniques and measurements conducted by permanent ...
Kamil Kowalczyk, Anna Maria Kowalczyk, Agnieszka Chojka   +2 more
doaj   +1 more source

An 11-year record of mass balance of Brewster Glacier, New Zealand, determined using a geostatistical approach

Journal of Glaciology, 2017
Recognising the scarcity of glacier mass-balance data in the Southern Hemisphere, a mass-balance measurement programme was started at Brewster Glacier in the Southern Alps of New Zealand in 2004.
NICOLAS J. CULLEN, BRIAN ANDERSON, PASCAL SIRGUEY, DOROTHEA STUMM, ANDREW MACKINTOSH, JONATHAN P. CONWAY, HUW J. HORGAN, RUZICA DADIC, SEAN J. FITZSIMONS, ANDREW LORREY   +9 more
doaj   +1 more source

Soil depth prediction supported by primary terrain attributes: a comparison of methods

Plant, Soil and Environment, 2006
The objective of this study was to investigate the benefits of methods that incorporate terrain attributes as covariates into the prediction of soil depth.
V. Penížek, L. Borůvka
doaj   +1 more source

Dynamic Co-Kriging Method Using Probability of Multi-Objective Constrained Improvement for Aerospace System Optimization

IEEE Access, 2023
To effectively solve the aerospace system multi-objective optimization problems with expensive black-box constraints, a novel dynamic Co-Kriging method (DCK) is proposed in this paper.
Xu Zhang, Fuxiang Dong, Renhe Shi
doaj   +1 more source

تخمین عیار در ذخایر دو متغیره با استفاده از روش ترکیبی کریجینگ و فاکتورهای خودهمبستگی مینیمم_ماکزیمم [PDF]

نشریه مهندسی معدن, 2017
تخمین عیار در ذخایر چند متغیره بسیار مهم است. انتخاب روش مناسب در این ذخایر می‌تواند در دقت تخمین عیار نقش اساسی داشته باشد. به­‌طور معمول روش کوکریجینگ (Co-Kriging) برای تخمین عیار ذخایر چند متغیره استفاده می‌شود اما این روش در بازتولید میانگین و ...
ولی صفری, مسعود منجزی, جعفر خادمی حمیدی   +2 more
doaj  

A Comparative Study of Different Multi-Fidelity Kriging Models for Reliability Analysis

Applied Sciences
The integration of active learning methods and multi-fidelity (MF) Kriging models has been demonstrated to effectively reduce the number of high-fidelity (HF) samples required for reliability analysis.
Shichao Feng, Yitao Wang, Xin Hu, Lingliang Feng, Yanqing Li, Zhengquan Wan   +5 more
doaj   +1 more source

XCO₂ Fusion Algorithm Based on Multi-Source Greenhouse Gas Satellites and CarbonTracker

Atmosphere, 2023
In view of the urgent need for high coverage and high-resolution atmospheric CO2 data in the study of carbon neutralization and global CO2 change research, this study combines the Kriging interpolation and the Triple Collision (TC) algorithm to fuse ...
Ailin Liang, Ruonan Pang, Cheng Chen, Chengzhi Xiang   +3 more
doaj   +1 more source

Some considerations regarding the use of multi-fidelity Kriging in the construction of surrogate models

, 2015
Surrogate models or metamodels are commonly used to exploit expensive computational simulations within a design optimization framework. The application of multi-fidelity surrogate modeling approaches has recently been gaining ground due to the potential ...
Toal, David J.J.
core   +1 more source