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A JACKNIFE APPROACH TO EXAMINE UNCERTAINTY AND TEMPORAL CHANGES IN THE SPATIL CORRELATION OF A VOC PLUME
Citation:
Barcelona, M. J., M. D. Varljen, AND H. A. Wehrmann. A JACKNIFE APPROACH TO EXAMINE UNCERTAINTY AND TEMPORAL CHANGES IN THE SPATIL CORRELATION OF A VOC PLUME. ENVIRONMENTAL MONITORING AND ASSESSMENT. Kluwer Academic Publishers, Hingham, MA, 59:31-46, (1999).
Description:
ABSTRACT: The application of geostatistics to spatial interpolation of time-invariant properties in ground-water studies (such as transmissivity or aquifer thickness) is well documented. The use of geostatistics on time-variant conditions such as ground-water quality is also becoming more commonplace.
Unfortunately, the detection of temporal changes in spatial correlation through direct comparison of experimental semivariograms is difficult due to the uncertainty in sample semivariograms constructed from field data. This paper discusses the use of the jackknife approach to estimate confidence limits of semivariograms of trichloroethane (TC) and other volatile organic compounds (VOC) in contaminated ground-water in northern Illinois. Examination of the ?spread' of the confidence limits about the semivariograms created from two types of sampling networks are discussed.
Publ: Environmental Monitoring and Assessment 59: 31-46, 1999.
(c) 1999 Kluwer Academic Publishers. The Netherlands.