نتایج جستجو برای: geostatistical estimation

تعداد نتایج: 264997  

Journal: :Remote Sensing 2016
Zhenwang Li Jianghao Wang Huan Tang Chengquan Huang Fan Yang Baorui Chen Xu Wang Xiaoping Xin Yong Ge

Leaf area index (LAI) is a key parameter used to describe vegetation structures and is widely used in ecosystem biophysical process and vegetation productivity models. Many algorithms have been developed for the estimation of LAI based on remote sensing images. Our goal was to produce accurate and timely predictions of grassland LAI for the meadow steppes of northern China. Here, we compare the...

Journal: :Geoscientific Model Development 2022

Abstract. Geostatistical methods are widely used in almost all geoscientific disciplines, i.e., for interpolation, rescaling, data assimilation or modeling. At its core, geostatistics aims to detect, quantify, describe, analyze and model spatial covariance of observations. The variogram, a tool describe this formalized way, is at the heart every such method. Unfortunately, many applications foc...

2017
Majken Caroline Looms Karsten Høgh Binley Majken C. Looms Thomas M. Hansen Knud S. Cordua Lars Nielsen Karsten H. Jensen Andrew Binley

High-resolution tomographic images obtained from crosshole geophysical measurements have the potential to provide valuable information about the geostatistical properties of unsaturated-zone hydrologic-state variables such as moisture content. Under drained or quasi-steady-state conditions, the moisture content will reflect the variation of the physical properties of the subsurface, which deter...

Journal: :Geospatial health 2015
Federica Giardina Jonas Franke Penelope Vounatsou

The study of malaria spatial epidemiology has benefited from recent advances in geographic information system and geostatistical modelling. Significant progress in earth observation technologies has led to the development of moderate, high and very high resolution imagery. Extensive literature exists on the relationship between malaria and environmental/climatic factors in different geographica...

Journal: : 2021

Facies cube is a required part of static model, especially concerning fields characterized by complicated geological structure. The important quantitative limitations for modeling are facies proportions in the formation volume. Nowadays these calculated using standard geostatistical methods without considering particular properties data. These specific geometrical characteristics sedimentologic...

2006
Klaus Mosegaard

Inverse problems in geophysics require the introduction of complex a priori information and are solved using computationally expensive Monte Carlo techniques where large portions of the model space are explored . The geostatistical method allows for fast integration of complex a priori information in the form of covariance functions and training images. We combine geostatistical methods and inv...

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