Remarkable Similarity Between the Scaling of Kurtosis with Squared Skewness for TORPEX Density Fluctuations and Sea-surface Temperature Fluctuations

摘要

The striking similarity between the statistics of plasma density fluctuations in the TORPEX device (B. Labit et al., Phys. Rev. Lett. 98, 255002 (2007)) and sea-surface temperature fluctuations (Po Sura and P. D. Sardeshmukh, J. Phys. Oceanogr. 38, 638 (2007)) (SS) is discussed. A nonlinear Langevin theory due to SS is generalized to include linear wave propagation. An interpretation of the nonlinear Langevin equation based on statistical closure theory is proposed.