National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
The use of cluster analysis to evaluation half-year measurement campaign of gaseous elemental mercury from atmospheric station Křešín u Pacova
Veselik, P. ; Dvorská, Alice
This paper deals with evaluation of gaseous elemental mercury in the air from Atmospheric Station Křešín u Pacova. The measurements were conducted with two identical instruments positioned right next to each other in one ground-based container in a 10 min time step, between December 2012 and June 2013. This measurement campaign was aggregated into approximately weekly intervals. The aim of this paper is to show the use of cluster analysis for finding those time periods which correspond the most according to appropriately selected criteria. Classification was performed by using cluster analysis of regression coefficients obtained by modelling weekly measurements by the second device on the measurements from the first device. Results of this analysis indicate the existence of five periods in which the regression lines show certain similarities. Further attention is paid to their analysis.
Monitoring and research activities at the atmospheric station Křešín u Pacova
Dvorská, Alice ; Váňa, M. ; Pavelka, Marian ; Hanuš, Vlastimil
The atmospheric station Křešín u Pacova will serve as a national monitoring point of measurements of greenhouse gases and selected atmospheric pollutants, their long-range transport and also basic meteorological characteristics. The presentation describes the measurement list intended for the station and possibilities of scienfic interpretation of the data.

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