نتایج جستجو برای: geostatistics

تعداد نتایج: 1090  

2015
Sanjeev Kumar Jha Gregoire Mariethoz Jason Evans Matthew F. McCabe Ashish Sharma

A geostatistical framework is proposed to downscale daily precipitation and temperature. The methodology is based on multiple-point geostatistics (MPS), where a multivariate training image is used to represent the spatial relationship between daily precipitation and daily temperature over several years. Here the training image consists of daily rainfall and temperature outputs from the Weather ...

2011
J. R. Sanchez-Pale J. F. Ramirez-Davila A. Gonzalez-Huerta C. de Leon

Sporisorium reilianum has caused significant economical damages in Mexico, in temperate and relatively dry areas, where maize is cultivated. The knowledge about the spatial distribution of this pathogen is basic to elaborate integrated management programs, and precise and eff icient the development of sampling methods and control techniques. Unfortunately, in Mexico there are no studies on spat...

2006
Abelardo A. A. Montenegro Suzana M. G. L. Montenegro

Aiming to evaluate the soil textural classes distribution and the spatial correlation between the soil textural classes and both infiltration rate and salinity in an alluvial area, in Pernambuco State “agreste” region, indicator geostatistics has been applied, adopting a binary distribution based on the presence/absence of loam soils. Considering sampling points and test locations along the mai...

Journal: :Revista Brasileira de Engenharia Agrícola e Ambiental 2019

Journal: :Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles 2012

Journal: :International Journal of Geographical Information Science 2006
Weidong Li

Categorical geographical variables are normally classified into multinomial classes which are mutually exclusive and visualized as area-class maps. Typical categorical variables such as soil types and land cover classes are multinomial and exhibit complex interclass relationships. Interclass relationships may include three situations: cross-correlation (i.e. interdependency), neighbouring situa...

Journal: :int. journal of mining & geo-engineering 2015
moslem moradi omid asghari gholamhossein norouzi mohammad riahi reza sokooti

here in, an application of a new seismic inversion algorithm in one of iran’s oilfields is described. stochastic (geostatistical) seismic inversion, as a complementary method to deterministic inversion, is perceived as contribution combination of geostatistics and seismic inversion algorithm. this method integrates information from different data sources with different scales, as prior informat...

Journal: :journal of agricultural science and technology 2010
j. mohammadi

spatial patterns of soil fertility parameters, and other extrinsic factors need to be iden-tified to develop farming practices that match agricultural inputs with local crop needs. little is known about the spatial structure of yield and weed density across fields. in this study, geostatistics was used to describe and map spatial patterns of soil total nitrogen, available phosphorus, available ...

Journal: :caspian journal of environmental sciences 2010
r. akhavan

estimating the amount of variation due to spatial dependence at different scales provides a basis for designing effective experiments. accurate knowledge of spatial structures is needed to inform silvicultural guidelines and management decisions for long term sustainability of forests. furthermore, geostatistics is a useful tool to describe and draw map the spatial variability and estimation of...

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