نتایج جستجو برای: geostatistical methods

تعداد نتایج: 1876219  

Journal: :Environmental Modelling and Software 2004
Mikhail F. Kanevski Roman Parkin Aleksey Pozdnukhov Vadim Timonin Michel Maignan Vasiliy V. Demyanov Stéphane Canu

The paper presents some contemporary approaches to the spatial environmental data analysis, processing and presentation. The main topics are concentrated on the decision–oriented problems of environmental and pollution spatial data mining and modelling: valorisation and representativity of data with the help of exploratory data analysis, topological, statistical and fractal measures of monitori...

2016
Marijan Šapina

Computerised mapping of subsurface strata is possible with a wide range of methods and techniques, such as geostatistical interpolation and stochastic simulations, but also with geomathematical methods. Geomathematical methods are, for example, the use of statistics in geology and the use of artificial neural networks. Artificial neural networks are primarily used in the case of flawed data and...

2006
Jo Eidsvik Sara Martino

In this paper we propose fast approximate methods for computing posterior marginals in spatial generalized linear mixed models. We consider the common geostatistical special case with a high dimensional latent spatial variable and observations at only a few known registration sites. Our methods of inference are deterministic, using no random sampling. We present two methods of approximate infer...

Journal: :Computers & Geosciences 2014
Jon O. Skøien Günter Blöschl Gregor Laaha Edzer J. Pebesma Juraj Parajka Alberto Viglione

Geostatistical methods have been applied only to a limited extent for spatial interpolation in applications where the observations have an irregular support, such as runoff characteristics along a river network and population health data. Several studies have shown the potential of such methods, but these developments have so far not led to easily accessible, versatile, easy to apply and open s...

Journal: :Mathematical Geosciences 2023

One of the most challenging aspects multivariate geostatistics is dealing with complex relationships between variables. Geostatistical co-simulation and spatial decorrelation methods, commonly used for modelling multiple variables, are ineffective in presence complexities. On other hand, multi-Gaussian transforms designed to deal relationships, such as non-linearity, heteroscedasticity geologic...

2012
Federica Giardina Laura Gosoniu Lassana Konate Mame Birame Diouf Robert Perry Oumar Gaye Ousmane Faye Penelope Vounatsou

The Research Center for Human Development in Dakar (CRDH) with the technical assistance of ICF Macro and the National Malaria Control Programme (NMCP) conducted in 2008/2009 the Senegal Malaria Indicator Survey (SMIS), the first nationally representative household survey collecting parasitological data and malaria-related indicators. In this paper, we present spatially explicit parasitaemia ris...

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