Fluctuation analysis of the atmospheric energy cycle

Blender, Richard; Gohlke , Denny; Lunkeit, Frank

doi:10.1103/PhysRevE.98.023101

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Fluctuation analysis of the atmospheric energy cycle

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Blender, R., Gohlke, D., & Lunkeit, F. (2018). Fluctuation analysis of the atmospheric energy cycle. Physical Review E, 98: 023101, pp. 1-7. doi:10.1103/PhysRevE.98.023101.

Cite as: https://hdl.handle.net/21.11116/0000-0002-0060-1

Abstract

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 in a simulation with a simplified hydrostatic model. The energy current densities are well approximated by the generalized Gumbel distribution and the Generalized Extreme Value (GEV) distribution. In an attempt to assess the fluctuation relation of Evans, Cohen, and Morriss 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.