نتایج جستجو برای: geostatistical methods for may

تعداد نتایج: 10980466  

2016
Minh C. Nguyen Ye Zhang Jun Li Xiaochun Li Bing Bai Haiqing Wu Ning Wei Philip H. Stauffer

The Shenhua Carbon Capture and Storage (CCS) project at the Shenbei Slope injection site in North Yulin is the first 100,000 tonper-year scale CCS pilot project in China with an injection operation lasting nearly 3 years. In this study, we investigate various geostatistical methods and their impact on the respective geologic models on which simulation is performed to understand the phenomena ob...

2008
Julián M. Ortiz

The variogram model is one of the most relevant parameters in geostatistical estimation and simulation methods. The sample variogram is inferred from available data, which may be subject to spatial bias and proportional effect. Over this sample variogram, a licit variogram model is fit and is carried through the process of estimation and/or simulation of the random function usually without rega...

ژورنال: علوم آب و خاک 2009
ایوبی, شمس اله, خرمالی, فرهاد,

Understanding distribution of soil properties at the field scale is important for improving agricultural management practices and for assessing the effects of agriculture on environmental quality. Spatial variability within soil occurs naturally due to pedogenic factors as well as land use and management strategies. The variability of soil properties within fields is often described by classica...

Journal: :پژوهش های جغرافیای طبیعی 0
عطااله کاویان دانشیار دانشگاه علوم کشاورزی و منابع طبیعی ساری، گروه آبخیزداری زینب جعفریان دانشیار دانشگاه علوم کشاورزی و منابع طبیعی ساری، گروه مرتعداری افشین جهانشاهی دانشجوی دکتری آبخیزداری دانشگاه علوم کشاورزی و منابع طبیعی ساری محمد گلشن دانشجوی دکتری آبخیزداری دانشگاه علوم کشاورزی و منابع طبیعی ساری

introduction rainfall erosivity, the propulsion or power of causing erosion in separation and transport of soil particles, is in relation to water erosion. rainfall erosion is causing loss of soil, damage to agriculture and infrastructures which is followed by water pollution. changes in rainfall patterns exacerbate risk of erosion globally. rainfall erosivity plays an effective role in soil er...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده جغرافیا 1392

the west of esfahan province, iran, is one of the most important agricultural areas throughout the country due to the climate variability and life-giving water of zayanderood river. rice is one of the major and economic crops in this area. the most important climatic elements in agricultural activities which should be considered include temperature, relative humidity, precipitation and wind. so...

Uniaxial compressive strength (UCS) is one of the most significant factors on the stability of underground excavation projects. Most of the time, this factor can be obtained by exploratory boreholes evaluation. Due to the large distance between exploratory boreholes in the majority of geotechnical projects, the application of geostatistical methods has increased as an estimator of rock mass pro...

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