This guide is intended to encourage consistency in the analysis, interpretation, and modeling of spatial variation.

This guide should be used in conjunction with Guides D 5549, D 5923, and D 5924.

1.1 This guide covers recommendations for analyzing, interpreting, and modeling spatial variation of regionalized variables in geotechnical and environmental site investigations.

1.2 The measures of spatial variation discussed in this guide include variograms and correlograms; these are fully described in (1), (2), (3), and (4).

1.3 This guide is intended to assist those who are already familiar with the geostatistical tools discussed herein and does not provide introductory information on the analysis, interpretation, and modeling of spatial variation.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.