GIS and Geostatistics: Spatial Analysis of Chernobyl Consequences in Belarus

• Title: GIS and Geostatistics: Spatial Analysis of Chernobyl Consequences in Belarus

Author: Konstantin Krivoruchko

Reference: Environmental Systems Research Institute, Redlands, California, Dec 2004

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Abstract: A large amount of data concerning the ecological state of Belarus after the Chernobyl accident was analyzed using geostatistics. This data included soil contamination by long-lived radioisotopes ¹³⁷Cs, ⁹⁰Sr, ^238-240Pu, and ²⁴¹Am; dose load estimates on the population during the first days after the Chernobyl accident; ¹³⁷Cs food contamination and estimation of the internal dose in 1993; and thyroid cancer morbidity among adults and children based on data collected from 1986 to 1995. This paper highlights the advantages of using geostatistical methods for processing environmental data. The following geostatistical approaches are used for mapping: simple, ordinary, indicator, probability, and disjunctive krigings, as well as ordinary and indicator kriging modifications for binomial data. The applicability of the different data processing methods is discussed. The data and the visualization techniques presented in this paper can help reveal powerful patterns for decision making and policy planning.

URL: http://www.ncgia.ucsb.edu/conf/sa_workshop/papers/krivoruchko_old.html

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