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Designing efficient sampling schemes for reconnaissance surveys of contaminated bed sediments in water courses

Published online by Cambridge University Press:  01 April 2016

M.J.W. Jansen
Affiliation:
Centre for Biometry, Plant Research International, P.O. Box 16, 6700 AA, WAGENINGEN, the Netherlands; e-mail: m.j.w.jansen@plant.wag-ur.nl
W.F. de Haan
Affiliation:
Witteveen & Bos Consulting Engineers, P.O. Box 233, 7400 AE, DEVENTER, the Netherlands; e-mail: W.dHaan@witbo.nl
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Abstract

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A method for designing efficient sampling schemes for reconnaissance surveys of contaminated bed sediments in water courses is presented. The method can be used in networks of water courses, for instance to estimate the total volume of bed sediment of a defined quality class. The water courses must be digitised as arcs in a Geographical Information System.

The method comprises six steps: (1) stratifying the water courses; (2) choosing a variogram; (3) calculating the parameters of the variance model; (4) choosing a compositing scheme; (5) choosing the values for the cost-model parameters; and (6) optimising the sampling scheme. The method is demonstrated with a survey of the main water courses in the reclaimed areas of Oostelijk Flevoland and Zuidelijk Flevoland.

Type
Research Article
Copyright
Copyright © Stichting Netherlands Journal of Geosciences 2000

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