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Using those datasets, the uncertainty of the chlorine-36 technique was bounded using the Root Mean Square Error (RMSE) of the primary and secondary chlorine-36 datasets, yielding a technique uncertainty between 7.5-20.0%.The individual production rate uncertainties were calculated using a camel-plot analysis to look at the variation in sample uncertainty with changes in chlorine content.The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.
Among the best-known techniques are radiocarbon dating, potassium–argon dating and uranium–lead dating.
It is an ideal, stable constituent for this particular study due to its very long half-life (300,000 years), and consequently acts as an independent check of the established model of aquifer recharge. Maloszewski for the possibility to use the FLOWPC 2.1 computer model, and Dr.
The chlorine-36 data of the analysed selected groundwater samples of this area clearly show the effect of the atmospheric nuclear bomb tests, with enhanced The authors would like to thank Prof. Fritz Stauffer for his advice concerning the transport modelling, Prof. Thomas Vitvar for his comments with respect to its practical use. Fanny Leuenberger for her review of the manuscript.