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Adaptive sampling based on the cumulative distribution function of order statistics to delineate heavy-metal contaminated soils using kriging [An article from: Environmental Pollution]
This digital document is a journal article from Environmental Pollution, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Correctly classifying ''contaminated'' areas in soils, based on the threshold for a contaminated site, is important for determining effective clean-up actions. Pollutant mapping by means of kriging is increasingly being used for the delineation of contaminated soils. However, those areas where the kriged pollutant concentrations are close to the threshold have a high possibility for being misclassified. In order to reduce the misclassification due to the over- or under-estimation from kriging, an adaptive sampling using the cumulative distribution function of order statistics (CDFOS) was developed to draw additional samples for delineating contaminated soils, while kriging. A heavy-metal contaminated site in Hsinchu, Taiwan was used to illustrate this approach. The results showed that compared with random sampling, adaptive sampling using CDFOS reduced the kriging estimation errors and misclassification rates, and thus would appear to be a better choice than random sampling, as additional sampling is required for delineating the ''contaminated'' areas. .
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PerĂº y Ecuador delinean sus fronteras.(TT: Peru and Ecuador delineate border.): An article from: Semana
This digital document is an article from Semana, published by Spanish Publications, Inc. on May 20, 1999. The length of the article is 552 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: PerĂº y Ecuador delinean sus fronteras.(TT: Peru and Ecuador delineate border.)
Publication:Semana (Magazine/Journal)
Date: May 20, 1999
Publisher: Spanish Publications, Inc.
Volume: 6 Issue: 325 Page: 6

Distributed by Thomson Gale.
Price: $5.95 [Notify me when price goes down.]


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