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ASTM D5923-18

Current Revision

Standard Guide for Selection of Kriging Methods in Geostatistical Site Investigations

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1.1 This guide covers recommendations for selecting appropriate kriging methods based on study objectives, exploratory data analysis, and analysis of spatial variation.

1.2 This guide considers commonly used forms of kriging, including ordinary kriging, simple kriging, lognormal kriging, universal kriging, and indicator kriging. Multivariate, space-time, and other less-frequently used kriging methods are not discussed; however, this is not intended to reflect any judgement as to the validity of these methods.

1.3 This guide describes conditions for which kriging methods are not appropriate and for which geostatistical simulations approaches should be used.

1.4 This guide does not discuss non-geostatistical alternatives to kriging, such as splines or inverse-distance techniques.

1.5 This guide does not discuss the basic principles of kriging. Introductions to geostatistics and kriging may be found in numerous texts including Refs (1-3).2 A review of kriging methods is given in Ref. (4).

1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7 This guide offers an organized collection of information or a series of options and does not recommend a specific course of action. This document cannot replace education or experience and should be used in conjunction with professional judgment. Not all aspects of this guide may be applicable in all circumstances. This ASTM standard is not intended to represent or replace the standard of care by which the adequacy of a given professional service must be judged, nor should this document be applied without consideration of a project's many unique aspects. The word “Standard” in the title of this document means only that the document has been approved through the ASTM consensus process.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


4.1 This guide is intended to encourage consistency and thoroughness in the application of kriging methods to environmental, geotechnical, and hydrogeological site investigations.

4.2 This guide may be used to assist those performing a kriging study or as an explanation of procedures for qualified nonparticipants that may be reviewing or auditing the study.

4.3 This guide encourages the use of site-specific information for the selection of an appropriate kriging method; however, the quality of data, the sampling density, and site coverage cannot be improved or compensated by any choice of kriging method.

4.4 This guide describes conditions for which kriging or particular kriging methods are recommended. However, these methods are not necessarily inappropriate if the stated conditions are not encountered.

4.5 This guide should be used in conjunction with Guides D5549, D5922, and D5924.
SDO ASTM: ASTM International
Document Number D5923
Publication Date Dec. 15, 2018
Language en - English
Page Count 4
Revision Level 18
Supercedes
Committee D18.01
Publish Date Document Id Type View
Dec. 15, 2018 D5923-18 Revision
Oct. 13, 1998 D5923-96E01 Revision
May 1, 2010 D5923-96R10 Reaffirmation
July 1, 2004 D5923-96R04 Reaffirmation