نتایج جستجو برای: simple cokriging

تعداد نتایج: 457147  

2004
J. S. Yang Y. Q. Wang P. V. August

This study presents a method to estimate land surface temperature (LST) by calibrating spatial interpolation using satellite-derived surface emissivity. Four spatial interpolation methods including Inverse Distance Weighting (IDW), Spline, Kriging, and Cokriging were tested to interpolate LST in southern New England using ground temperatures measured at national weather stations (NWS) in summer...

Journal: :categories and general algebraic structures with applications 2015
b. davvaz s. omidi

in this paper, we introduce the concept of semihyperring $(r,+,cdot)$ together with a suitable partial order $le$. moreover, we introduce and study hyperideals in ordered semihyperrings. simple ordered semihyperrings are defined and its characterizations are obtained. finally, we study some properties of quasi-simple and $b$-simple ordered semihyperrings.

Journal: :Environmental pollution 2006
Xingmei Liu Jianjun Wu Jianming Xu

For many practical problems in environmental management, information about soil heavy metals, relative to threshold values that may be of practical importance is needed at unsampled sites. The Hangzhou-Jiaxing-Huzhou (HJH) Plain has always been one of the most important rice production areas in Zhejiang province, China, and the soil heavy metal concentration is directly related to the crop qual...

2014
Rafael Bardera Mora

Helicopters operations on board ships require special procedures introducing additional limitations known as ship helicopter operational limitations (SHOLs) which are a priority for all navies. This paper presents the main results obtained from the experimental investigation of a simple frigate shape (SFS) which is a typical case of study in experimental and computational aerodynamics. The resu...

A Fallah H Latifi, O Karami S.H Shataei

During recent years, oak decline has been widely spread across Brant’s oak (Quercus Brantii Lindl.) stands in the Zagros Mountains, Western Iran, which caused large-area forest dieback in several sites. Mapping the intensity and spatial distribution of forest dieback is essential for developing management and control strategies. This study evaluated a range of geostatistical and interpolation m...

ژورنال: طلوع بهداشت یزد 2015

Introduction:Groundwater resources are as one of the most important water resource in arid and semi- arid areas, thenprotection of their qualityis very important. On the other hand, monitoring andevaluating the groundwaterqualityarecomplex andexpensive, so usinginterpolation methodslooknecessary. Methods: Inthisresearch, thespatial and temporalvariationsofwaterqualityparametersinKoohpaye– Segz...

خسروی, رسول, همامی, محمود رضا, منصوره, ملکیان,

Climatic change can impose physiological constraints on species and can therefore affect species distribution. Bioclimatic predictors, including annual trends, regimes, thresholds and bio-limiting factors are the most important independent variables in species distribution models. Water and temperature are the most limiting factors in arid ecosystem in central Iran. Therefore, mapping of climat...

Journal: :Remote Sensing 2021

High-spatial-resolution precipitation data are of great significance in many applications, such as ecology, hydrology, and meteorology. Acquiring high-precision high-resolution a large area is still challenge. In this study, downscaling–merging scheme based on random forest cokriging presented to solve problem. First, the enhanced decision tree model, which from machine learning algorithms, use...

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