Fluctuation Analysis of the Atmospheric Energy Cycle
Atmospheric and Oceanic Physics
2018-08-08 v1
Abstract
The atmosphere gains available potential energy by solar radiation and dissipates kinetic energy mainly in the atmospheric boundary layer. We analyze the fluctuations of the global mean energy cycle defined by Lorenz (1955) in a simulation with a simplified hydrostatic model. The energy current densities are well approximated by the generalized Gumbel distribution (Bramwell, Holdsworth and Pinton, 1998) and the Generalized Extreme Value (GEV) distribution. In an attempt to assess the fluctuation relation of Evans, Cohen, and Morriss (1993) we define entropy production by the injected power and use the GEV location parameter as a reference state. The fluctuation ratio reveals a linear behavior in a finite range.
Keywords
Cite
@article{arxiv.1802.07565,
title = {Fluctuation Analysis of the Atmospheric Energy Cycle},
author = {Richard Blender and Denny Gohlke and Frank Lunkeit},
journal= {arXiv preprint arXiv:1802.07565},
year = {2018}
}
Comments
17 pages, 5 figures