Cesium Concentration Spatial Distribution Modeling by Point Cumulative Semivariogram

The theoretical basis of the proposed technique is the cumulative variation of ¹³⁷Cs measurements' squared-differences between a reference and other sites. The change of the cumulative squared-differences with distance from the reference site is referred to as the point cumulative semivariogram...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 2008-11, Vol.195 (1-4), p.151-160
Main Authors: KIILAHCI, Fatih, SEN, Zekai, KAZANC, Sefa
Format: Article
Language:English
Subjects:
Aluminum
Applied sciences
Atmospheric Protection/Air Quality Control/Air Pollution
Cesium
Cesium radioisotopes
Chemical elements
Climate Change/Climate Change Impacts
Contamination
Continental surface waters
Earth and Environmental Science
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Environment
Environmental monitoring
Exact sciences and technology
Gamma rays
Hydrogeology
Lakes
mathematical models
Natural water pollution
Pollution
Pollution, environment geology
Radioactivity
radionuclides
Soil Science & Conservation
Spatial distribution
Studies
Surface water
thematic maps
Water Quality/Water Pollution
Water treatment and pollution
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Summary:The theoretical basis of the proposed technique is the cumulative variation of ¹³⁷Cs measurements' squared-differences between a reference and other sites. The change of the cumulative squared-differences with distance from the reference site is referred to as the point cumulative semivariogram (PCSV), which provides appropriate measure of cumulative similarity. Inspection of individual experimental PCSV provides local interpretation about the ¹³⁷Cs radioactivity concentration around each site, whereas collective inspections provide possibility for grouping similar sites and hence identifying homogeneous sub-areas within the study area. It is also possible to prepare ¹³⁷Cs radioactivity concentration maps based on pre-specified distances in each experimental PCSV, which lead to similarity levels. Such maps provide appreciation of ¹³⁷Cs radioactivity concentration regional dependence in Keban Dam Lake, Turkey. Apart from the individual PCSV interpretations, the whole lake is divided into four distinctive classes.
ISSN:0049-6979
1573-2932
DOI:10.1007/s11270-008-9734-8