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Characteristics of Tropical‐Cyclone Turbulence and Intensity Predictability
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2022
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Source: Geophysical Research Letters, 49(8)
[PDF-2.56 MB]
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Journal Title:Geophysical Research Letters
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Description:This study examines the characteristics of tropical-cyclone (T-C) turbulence and its related predictability implications. Using the Fourier-Bessel spectral decomposition for convection-permitting simulations, it is shown that T-C turbulence possesses different spectral properties in the azimuthal and radial directions, with a steeper power law in the radial-wavenumber than that in the azimuthal-wavenumber direction. This spectral difference between the azimuthal and radial directions prevents one from using a single wavenumber to interpret T-C intensity predictability as for classical homogeneous isotropic turbulence. Analyses of spectral error growth for a high-wavenumber perturbation further confirm that the spectral growth
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Source:Geophysical Research Letters, 49(8)
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DOI:
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ISSN:0094-8276;1944-8007;
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Rights Information:Other
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