Journal
PHYSICA SCRIPTA
Volume 94, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1402-4896/aaece0
Keywords
two-dimensional turbulence; sea surface temperature; intermittency
Categories
Funding
- National Natural Science Foundation of China [11332006, 11732010, 91441116]
- Sino-French (NSFC-CNRS) joint research project [11611130099]
- NSFC China
- CNRS, France
- Fundamental Research Funds for the Central Universities [20720180120, 20720180123]
- MEL Internal Research Fund [MELRI1802]
Ask authors/readers for more resources
In this paper, we analyze the sea surface temperature obtained from the global drifter program. The experimental Fourier power spectrum shows a two-decade power-law behavior as E-theta(f) proportional to f(-7/3) in the frequency domain. Dimensional argument suggests a two-dimensional-like Lagrangian forward cascade, in which the enstrophy dissipation epsilon(Omega) is involved. Using the Hilbert-Huang transform and multi-level segment analysis, the measured high-order statistics and the corresponding singularity spectrum confirm the existence of the intermittency with a measured intermittency parameter mu(theta) similar or equal to 0.10, which is much weaker than the prediction by the conventional structure-function method.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available