نتایج جستجو برای: simple cokriging
تعداد نتایج: 457147 فیلتر نتایج به سال:
Gridded precipitation data with a high spatiotemporal resolution are of great importance for studies in hydrology, meteorology, and agronomy. Observational from meteorological stations cannot accurately reflect the distribution variations over large area. Meanwhile, radar-derived restricted by low accuracy areas complex terrain satellite-based spatial resolution. Therefore, hourly models were e...
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.
groundwater resources are the most important sources of water consumption (agriculture, industry and drinking water) in arid and semi-arid regions. the management of these water resources is more expensive and difficult than surface waters; therefore more complicated and economic methods are needed for determination of their quality and quantity. in this study geostatistical methods of kringing...
population growth rating, high food demand, and land resource challenges have led to more serious studies of production factors especially the scarce water and soil resources. one of the most basic data items in land resources is the soil map. therefore, in the process of the present research for preparing soil maps of some soil quality indices at the faculty of agriculture experimental field (...
هدف از انجام تحقیق .بر اساس یافته ها تاکنون میزان تاثیراین تکنیکها در مقایسه با سایر روشها براساس اطلاعات آماری و به صورت عددو رقم بررسی و نمایش داده نشده اند و به همین دلیل این رویکرد نتوانسته توجه اساتید و مربیان آموزش زبان را در کشورمان به خود جلب کند. از اینرودر این پژوهش بر آن شدیم تا میزان تاثیر تکنیکهای معرفی شده در این رویکرد را با انجام یک تحقیق آزمایشی بر روی سه گروه از دانشجویان برر...
We present an INTEGRAL data analysis of the X-ray transient SAX J2103.5+4545 during two outbursts detected in December 2002. The INTEGRAL coordinates and error circle agree with the position of the recently proposed optical counterpart. A power-law plus cutoff model provided a good fit to the 4–150 keV spectrum yielding a photon index of 1.0±0.1, a cutoff energy E cut = 7.6 ± 2.0 keV and a fold...
This study presents the map of external effective annual dose rate (1:200,000 scale) due to terrestrial and cosmic radiation. The is assessed via gamma ray spectroscopy combining radiometric data from airborne surveys laboratory measurements. geostatistical method Collocated CoKriging used for spatial interpolation sparse data, adopting a high-resolution geological as ancillary information. obt...
Abstract Accurate pore pressure models in wells are essential for ensuring the lowest cost and operational safety during exploration/development projects. This modeling requires integration of several sources information such as well data, formation tests, geophysical logs, mud weight, geological models, seismic geothermal sedimentation rate modeling. An empirical relationship between overpress...
The aim of this work was to elaborate a new methodology that can allow for the identification topsoil homogeneous area (tSHA) distribution along land parcels, supporting farmers in keeping low-cost, sustainable, and light logistic management precision agriculture (PA) practices. This paper shows assessment tSHA variability over two production units (PUs), considering radiometric response (optic...
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