TY  - JOUR
AU  - F. Carbone, A. G. Bruno
AU  - Simone, C. N. Gencarelli
PY  - 2018//
TI  - The Superstatistical Nature and Interoccurrence Time of Atmospheric Mercury Concentration Fluctuations
KW  - atmospheric turbulence interoccurrence times mercury superstatistics universal scaling
N2  - The probability density function (PDF) of the time intervals between subsequent extreme events in atmospheric Hg0 concentration data series from different latitudes has been investigated. The Hg0 dynamic possesses a long-term memory autocorrelation function. Above a fixed threshold Q in the data, the PDFs of the interoccurrence time of the Hg0 data are well described by a Tsallis q-exponential function. This PDF behavior has been explained in the framework of superstatistics, where the competition between multiple mesoscopic processes affects the macroscopic dynamics. An extensive parameter μ, encompassing all possible fluctuations related to mesoscopic phenomena, has been identified. It follows a χ2 distribution, indicative of the superstatistical nature of the overall process. Shuffling the data series destroys the long-term memory, the distributions become independent of Q, and the PDFs collapse on to the same exponential distribution. The possible central role of atmospheric turbulence on extreme events in the Hg0 data is highlighted.
SN  - 2169-8996
SN  - 2169-8996
UR  - http://dx.doi.org/10.1002/2017JD027384
N1  - exported from refbase (http://publi.ipev.fr/polar_references/show.php?record=7231), last updated on Wed, 03 Jul 2024 17:16:12 +0200
ID  - F.Carbone+Simone2018
ER  -