Spatiotemporal (four-dimensional) modeling and simulation of uranium (238) in Hazar Lake (Turkey) water

A spatiotemporal (four-dimensional) model has been proposed for determining the transportation characteristics of 238 U. Primarily, three-dimensional distribution of uranium particles is obtained with the point cumulative semivariogram, and then 4D models are obtained with the spatiotemporal point c...

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Bibliographic Details
Published in:Environmental earth sciences 2016-03, Vol.75 (6), p.1-18, Article 452
Main Author: Kuelahci, Fatih
Format: Article
Language:English
Subjects:
Biogeosciences
Earth and Environmental Science
Earth Sciences
Environmental Science and Engineering
Geochemistry
Geology
Groundwater recharge
Hydrology/Water Resources
Lakes
Original Article
Simulation
Spatial analysis
Terrestrial Pollution
Transportation
Uranium
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Summary:A spatiotemporal (four-dimensional) model has been proposed for determining the transportation characteristics of 238 U. Primarily, three-dimensional distribution of uranium particles is obtained with the point cumulative semivariogram, and then 4D models are obtained with the spatiotemporal point cumulative semivariogram (STPCSV). The 238 U distribution simulation in the lake by means of the STPCSV method provides “the similarity levels”, which help to make categorization. Similarity levels are used as equivalence of the radius of influence, which defines the maximum distance that is practically effective in the research field of 238 U. Simulation maps also provide a possibility for the 238 U concentration observability in the lake, and hence, radioactive changes can be traced in a very easy way. The radius of influence for 238 U concentrations transportations is carried out for 5 km distance from each station, and an effective simulation is performed for 24 h. The applications of methodologies are achieved for the Hazar Lake, Turkey, which is under excessive groundwater recharge.
ISSN:1866-6280
1866-6299
DOI:10.1007/s12665-016-5302-5