
	Where results make sense

Topic: Geostatistics

Related Topics

Post office

South Duxbury, Massachusetts

Erwin, Tennessee

War

Traffic

Bal Gangadhar Tilak

Orland Hills, Illinois

Edward Troughton

Flavor Flav

List of French monarchs

Collegiate Shag

1461

Pen Argyl, Pennsylvania

In the News (Mon 16 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Mining Geostatistics
		With this definition, G. Matheron introduced the term geostatistics in 1962 to describe a scientific approach to evaluation problems in geology and mining, from ore reserve estimation to grade control.
		First published in 1978, this book was the first complete reference work on the subject of mining geostatistics, an attempt to synthesize the practical experience gained by researchers from the Centre de Morphologie Mathematique in France and by mining engineers and geologists all over the world who contributed their ideas.
		The techniques developed are illustrated by a large number of case studies and, as an aid to the reader, each chapter begins with a summary of the contents and there is a guide to the notation used.
	www.blackburnpress.com /mige.html (285 words)

	Centre for Computational Geostatistics - University of Alberta
		Geostatistics is a relatively new and rapidly growing area in engineering, the earth sciences, and applied mathematics.
		Although geostatistics was first developed to improve ore reserve estimation in a mining context, it has grown in application to many other areas of the earth sciences.
		Gaussian simulation is one of the simplest geostatistical simulation algorithms, and for this reason, it is the most commonly used method in practice.
	www.uofaweb.ualberta.ca /ccg/nav02.cfm?nav02=17864&nav01=17861 (1318 words)

	Position PaperGIS and Geostatistics: Spatial Analysis of Chernobyl Consequences in Belarus
		Geostatistics are statistical methods used to describe spatial relationships among sample data and to apply this analysis to the prediction of spatial and temporal phenomena.
		Geostatistics have traditionally been used in the sphere of geosciences: meteorology, mining, soil science, forestry, fisheries, remote sensing, and cartography.
		The geostatistical approach produces reliable results and allows one to know errors of estimations and, as a key advantage, one can produce maps of errors of estimations and maps of probability for a given variable to exceed a chosen threshold.
	www.ncgia.ucsb.edu /conf/sa_workshop/papers/krivoruchko_old.html (7227 words)

	WHAT IS GEOSTATISTICS?
		Geostatistics without the computer is of little interest, in many ways the developments in geostatistics parallel those in computing, particularly the appearance of PC's and workstations.
		A third international geostatistics congress was held in Avignon, France in 1988, a fourth in Troia, Portugal in 1992 and the most recent in Wollongong, Australia in 1996.
		Geostatistics is very much an applied discipline (or perhaps it is not even a discipline), its development has been the work of mining engineers, petroleum engineers, hydrologists, soil scientists, geologists as well as statisticians.
	www.u.arizona.edu /~donaldm/homepage/whatis.html (2028 words)

	Geostatistics Centre (Site not responding. Last check: 2007-11-02)
		Geostatistics involves studying phenomena correlated in time and space by means of a statistical tool: the theory of regionalized variables.
		A technique of joint geostatistical simulation of loading and transmissiveness, not requiring a complete definition of extreme conditions, has been developed according to simplifying hypotheses and compared with drainage calculations based on usual codes.
		In the context of a Cassini/CNRS project, application of geostatistics to the analysis of census data was studied'a The methodology developed in this way has contributed to facilitating the description of the spatial diffusion of the decrease in fertility in India over the last 40 years.
	www.ensmp.fr /Eng/Research/Domain/MathInfoAuto/CG/CG-rap-summary.html (1660 words)

	Geostatistics References (Site not responding. Last check: 2007-11-02)
		Bristol,R. A geostatistical analysis of data from the Barrick-Goldstrike Mine, Elko county, Nevada.
		Liao,H.H.; and Tim,U.S. Integrating geostatistics and GIS to examine the spatial patterns of the Iowa flood of 1993.
		Noonan,G.M. A geostatistical and multivariate statistical analysis of rock and soil geochemical data associated with mineralization in tertiary volcanics in west central Nevada.
	unr.edu /homepage/daved/geostatistics.html (1582 words)

	WVGES, Geostatistical Datasets from Geostatistics and Petroleum Geology
		WVGES, Geostatistical Datasets from Geostatistics and Petroleum Geology
		Necessary items in the geostatistical toolbox of today are the ability to calculate and model semivariograms, linear methods of kriging, cokriging and variants of cokriging, nonlinear methods such as indicator kriging or disjunctive kriging, and conditional simulation.
		All geostatistics depends on a model of spatial dependence, hence variography, even nonlinear geostatistical estimation methods, and most methods of simulation require setting up and solving the systems of equations used in linear kriging.
	www.wvgs.wvnet.edu /www/geostat/GeostatPetGeol.html (814 words)

	RIGZONE - Geostatistics for Engineers and Earth Scientists
		The appropriate choice in such circumstances is geostatistics, a collection of numerical techniques for the characterization of spatial attributes similar to the treatment in time series analysis of auto-correlated temporal data.
		Geostatistics for Engineers and Earth Scientists presents a concise introduction to geostatistics with an emphasis on detailed explanations of methods that are parsimonious, nonredundant, and through the test of time have proved to work satisfactorily for a variety of attributes and sampling schemes.
		Geostatistics for Engineers and Earth Scientists is intended to assist in the formal teaching of geostatistics or as a self tutorial for anybody who is motivated to employ geostatistics for sampling design, data analysis, or natural resource characterization.
	www.rigzone.com /store/product.asp?p_id=1121&c_id= (351 words)

	Elements of geostatistics
		Geostatistics is a collection of statistical methods which were traditionally used in geo-sciences.
		Geostatistical methods were recently adopted in ecology (landscape ecology) and appeared to be very useful in this new area.
		Also, geostatistics changes the emphasis from estimation of averages to mapping of spatially-distributed populations.
	www.gypsymoth.ento.vt.edu /~sharov/PopEcol/lec2/geostat.html (678 words)

	Book Review - Geostatistics for Reservoir Characterization (Site not responding. Last check: 2007-11-02)
		An introductory chapter introduces the use of geostatistics in reservoir characterization, promotes its application over the early traditional approaches, and discusses some important concepts, such as subjectivity in modeling, stationarity requirements of stochastic approaches, and issues of scale in data.
		My personal experience in teaching geostatistics is that students understand better the correlogram for quantifying spatial continuity, because it is more naturally related to the correlation coefficient, a concept even a novice in statistics understands well.
		Although the book title clearly suggests the application of geostatistics to reservoir characterization, the representation is quite general in nature; therefore, students from non-petroleum fields may benefit from it.
	www.spe.org /web/book_reviews/geostat_0604.shtml (770 words)

	GEO655
		The course is intended to introduce the basic concepts and applications of applied geostatistics, which addresses optimal spatial interpolation.
		Geostatistics are considered to be one of the most sophisticated spatial interpolation methods.
		The course emphasizes the applied side of geostatistics, and the method can be useful in students' immediate and future needs such as students' own theses and dissertations, or projects for their current or potential employers.
	www.geog.buffalo.edu /~lbian/GEO497_597.html (207 words)

	Geostatistics
		Geostatistics is a modern, effective tool for reservoir characterization and seismic inversion.
		The main purpose of geostatistics is to make property grids, which are needed as input to many types of petroleum industry software, such as cross section and visualization packages, reservoir flow simulators, and material balance programs.
		For a given set of input data, the geostatistical method of conditional simulation produces a series of grids which are consistent with the input data in terms of statistics (mean and standard deviation) and texture (variogram) in addition to honoring the same set of control data.
	www.gridstat.com /ACEweb/geostat.htm (737 words)

	Gary Raymond - Mining Geostatistics Software (Site not responding. Last check: 2007-11-02)
		My pioneering applications of geostatistics in this deposit resulted in a huge gain in ore recovered in mining, much closer ore reserve estimates, and a significant extension of mine life because of the new interpretation of ore around old underground workings.
		I took the time to save the data because the Ingerbelle was the best geostatistics case study that I had seen, in terms of both the large volume of close spaced sampling at all levels of detail, and the difficulty of the estimate.
		For geostatistics courses that I gave over the years, I had developed a simple numeric approach to understanding geostatistics from first principal.
	www3.telus.net /gary_raymond (734 words)

	Geostatistics Short Course
		Geostatistical methods are important additions to the geoscientist's and engineer's toolbox to quantitatively address the uncertainty associated with spatial data at varying scales.
		As the subject of geostatistics involves material from linear algebra, probability theory, and other branches of mathematics, the material can be overwhelming for some.
		The next offering of "Geostatistics for Hydrogeological and Environmental Applications" is anticipated for early 2002, and may include an evening session to allow presentations of GRA-member applications of geostatistical methods, discussion, software demonstrations, and a social hour.
	www.grac.org /geostats_summary.html (684 words)

	Geostatistics - Wikipedia, the free encyclopedia
		The mean is an important measure of central tendency, which when extended to a set of points, located on a Cartesian coordinate system, the average location, or mean center, can be determined.
		In time, kriging variances and kriging covariances of sets of kriged estimates became the cornerstones of geostatistics, an invalid variant of mathematical statistics that is applied to sparse data in small and large sample spaces alike.
		gstat is an open source computer code for multivariable geostatistical modelling, prediction and simulation.
	en.wikipedia.org /wiki/Geostatistics (1984 words)

	Volume 8 Number 2
		GEOSTATISTICS is an interdisciplinary newsletter published quarterly by the North American Council on Geostatistics, and is available at http://www-leland.stanford.edu/group/nacog.
		Geostatistics and academia: the intentional spelling of Egostatistics on Mo's transparency brought some chuckles and acknowledgement of Mo's two points (1) there are few universities where the geostatistics program transcends the ability and reputation of a single academic, and (2) new geostatisticians are not generally ending up in academia.
		Geostatistical bibliography: there is a need for a reliable and authoritative bibliography of geostatistics, particularly with the diversity of journals that now publish geostatistical articles.
	www.stanford.edu /group/nacog/vol8no2.html (4399 words)

	Modern Spatiotemporal Geostatistics (Site not responding. Last check: 2007-11-02)
		Such a framework will ensure that geostatistics continuously undergoes two major processes of growth: a unification process with respect to its methods and a discrimination process with respect to its mathematical structure and the way it relates to experience.
		Its interpretive part examines the scientific substance of the geostatistical models, and its considerable integration capability allows it to play a vital role in the horizontal integration of disparate scientific disciplines that have resulted from rapid technological development and globalization.
		Modern Spatiotemporal Geostatistics will be useful to geostatisticians, mining and petroleum engineers, geographers, statisticians, civil and environmental engineers, epidemiologists, and health scientists who wish to learn the powerful tools of spatiotemporal analysis and mapping.
	www.ai-geostats.org /books/_books/00000019.htm (620 words)

	Geostatistics for the Environmental Sciences - GS+ Overview
		Widely praised, GS was the first geostatistics package to offer all components — from semivariance analysis through kriging and mapping — in an integrated package that provides the flexibility demanded by the specialist and the simplicity needed by the novice.
		It is a simple interpolation method used in mapping programs that do not use geostatistics, and assumes spatial dependence among points close to one another (without measuring it).
		The Interpolation Grid allows the user to define the boundaries of the interpolated area and the intensity (grid spacing) at which the interpolation will proceed.
	www.gammadesign.com /Geostatistics.html (1007 words)

	Geostatistics: New science in 1960s - dismissed as sham and fraud
		Hailed as a new science in the early 1960s but dismissed by skeptics as a sham, geostatistics was embraced by statistically dysfunctional professional engineers and geoscientists who metamorphosed into qualified persons in the process, and turned a modicum of mathematical statistics into the wonderful kriging game of chance with the stakes of mining investors.
		Fisher's F-test also troubled Dr A G Journel, lead author of Mining Geostatistics and a Stanford professor, who postulated on October 15, 1992, that spatial dependence may be assumed unless proven otherwise but was troubled when "classical Fischerian [sic] statistics" proved spatial dependence between gold assays of ordered rounds in a drift.
		Geostatistics is applied not only in mineral exploration and mining of coals, oil sands and ores but also in agriculture, aquaculture, forestry, environmental and health sciences, hydrology and reservoir forecasting.
	www.geostatscam.com (853 words)

	Practical Geostatistics, Modeling and Spatial Analysis - Course Introduction
		Practical Geostatistics emphasizes the practical application of geostatistics and limits the presentation of geostatistical theory to the level required for a basic understanding of the techniques involved.
		Application of geostatistics in the geosciences continues to expand from its origins in the mining sector and now includes significant applications in the environmental, petroleum and geotechnical sectors.
		This practical, integrated approach to the application of geostatistics for subsurface characterization is the focus of Practical Geostatistics, from a description of the data structures required, through discussion of the concepts, theory and application, to qualification of the end results.
	www.edumine.com /xutility/html/menu.asp?category=xcourse&course=Xgeostats (599 words)

	Geostatistics: Sampling and Statistics Explained
		In the early 1990s, I advised JMG 's Editor that geostatistics violates the requirement of functional independence and ignores the concept of degrees of freedom.
		Geostatistics is all about assuming spatial dependence between in situ or temporally ordered sets of measured values, interpolation by kriging, smoothing pseudo kriging variances to perfection, and rigging the rules of mathematical statistics with impunity.
		It would make sense if geostatistics were to return to its roots in mathemaical statistics but its practitioners prefer to assume, krige and smooth with a mind-boggling hodgepodge of kriging methods.
	www.geostatscam.com /sampling_and_statistics_explained.htm (328 words)

	Using Geoscience and Geostatistics to Optimize Groundwater Monitoring Networks at the Savannah River Site
		The redundancy assessment is based on geostatistical methods that allow the comparison of predicted spatial concentrations of TCE using all wells to the predicted concentrations using only a subset of wells.
		In geostatistics, the closeness of any two measurements is assumed to be related to the distance and, possibly direction, between them.
		The key concept in geostatistics, that well measurements are spatially related (correlated), leads to the notion that the best prediction of groundwater contamination at a non-sampled location is not a single well concentration, but an average of the concentrations in nearby wells.
	sti.srs.gov /fulltext/ms2001145/ms2001145.html (6119 words)

	Geostatistics - Simple Terms (Site not responding. Last check: 2007-11-02)
		Geostatistics / 3-D models are used to quantify uncertainty to aid in the decision making process.
		Geostatistics is based on the mathematics of Probability theory as advanced by Blaise Pascal and
		Geostatistics came into being in South Africa in the 1960's with the work of Krige and Sichel who applied it to gold exploration and mining plays.
	members.shaw.ca /facilitation/eclipse/geostats.htm (290 words)

	DGI: Geostatistics Technical Specifications
		Geostatistics provides a way to add knowledge about the geology of a petroleum reservoir, aquifer, etc. to the modeling process that may not be reflected in the input data.
		The geostatistics model is integrated with the advanced structure models calculated using the EarthVision Geologic Structure Builder.
		For example, geostatistical models can be calculated conformal or nonconformal to structure, in selected zones and selected fault blocks.
	www.dgi.com /earthvision/techspecs_geostats.shtml (399 words)

	RIGZONE - Geostatistics and Petroleum Geology, 2nd Edition
		All of the fundamental semivariogram models are illustrated, along with anisotropic models, hole effects, geometric and zonal models, and the mechanics of fitting models.
		For each geostatistical method treated in detail, the author introduces necessary theory and background, describes how the method works, the steps a user must go through, and problems a user might encounter.
		Geostatistics and Petroleum Geology will be an invaluable advanced-level text for students on petroleum engineering and geosciences courses, as well as an important reference for petroleum geologists and petroleum engineers in oil companies worldwide.
	www.rigzone.com /store/product.asp?p_id=1122 (272 words)

Try your search on: Qwika (all wikis)