نتایج جستجو برای: spatial modeling

تعداد نتایج: 729289  

ژورنال: اندیشه آماری 2021

Spatial count data is usually found in most sciences such as environmental science, meteorology, geology and medicine. Spatial generalized linear models based on poisson (poisson-lognormal spatial model) and binomial (binomial-logitnormal spatial model) distributions are often used to analyze discrete count data in which spatial correlation is observed. The likelihood function of these models i...

2012
Daniel Cooley Jessi Cisewski Robert J. Erhardt Soyoung Jeon Elizabeth Mannshardt Bernard Oguna Omolo Ying Sun

Abstract: • We survey the current practice of analyzing spatial extreme data, which lies at the intersection of extreme value theory and geostatistics. Characterizations of multivariate max-stable distributions typically assume specific univariate marginal distributions, and their statistical applications generally require capturing the tail behavior of the margins and describing the tail depen...

Journal: :مدیریت خاک و تولید پایدار 0
زهرا ذوالفقاری دانشکاه صنعتی اصفهان- گروه خاکشناسی شمس الله ایوبی دانشکده کشاورزی، دانشگاه صنعتی اصفهان محمد رضا مصدقی اصفهان- دانشگاه صنعتی اصفهان- گروه خاکشناسی

this study was conducted to investigate the spatial variability of model parameters of soil shrinkage curve in cherlgerd district, chaharmahal-va-bakhtiari province. ninety nine locations were selected and soil clods were collected from the 0-10 cm layer and brought to the laboratory. soil shrinkage curve was measured, according to archimedes's principle, by covering the undisturbed clods ...

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2014

Journal: :journal of rangeland science 2015
noredin rostami vahid habibi raed kamali moghadam

accurate knowledge of spatial distribution of soil physical and chemical properties is needed for suitable management and proper use of rangelands in masileh plain, qom, iran. in present study, for the spatial modeling of chemical and physical parameters such as sodium (na), calcium (ca), soluble potassium (k), magnesium (mg), electrical conductivity (ec), saturation percentage (sp%), silt, cla...

بذر افشان, جواد, قمقامی, مهدی, قهرمان, نوذر,

Multi site modeling of rainfall is one of the most important issues in environmental sciences especially in watershed management. For this purpose, different statistical models have been developed which involve spatial approaches in simulation and modeling of daily rainfall values. The hidden Markov is one of the multi-site daily rainfall models which in addition to simulation of daily rainfall...

Groundwater is a major source of water for domestic, industrial, and agricultural sectors in many countries. The main objective of this research was to provide an overview of present groundwater quality using parameters such as calcium, magnesium, sodium, chloride, sulfate, pH, and electrical conductivity (EC) in the Mehran plain, Ilam province using GIS and geostatistical techniques. A total o...

Journal: :Reports on Geodesy and Geoinformatics 2013

Journal: :Geo-spatial Information Science 2013

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