The statistical properties of a measure of planetary-scale wave activity are investigated in a 16 winter NMC dataset. The probability density distribution of the wavenumber 2 to 4 amplitude is found to be bimodal, confirming earlier results from a smaller dataset. Partitioning the data based on the density estimation reveals 2 statistical flow regimes in physical space. One corresponds to an amplified planetary-scale wave pattern and the other to a predominantly zonal flow. Both regimes exhibit a baroclinic vertical structure but the difference between them is equivalent barotropic. These differences extend through the depth of the troposphere and appear to be of hemispheric extent

ON THE PROBABILITY DENSITY DISTRIBUTION OF PLANETARY-SCALE ATMOSPHERIC WAVE AMPLITUDE / Hansen, Ar; Sutera, Alfonso. - In: JOURNAL OF THE ATMOSPHERIC SCIENCES. - ISSN 0022-4928. - STAMPA. - 43:24(1986), pp. 3250-3265.

ON THE PROBABILITY DENSITY DISTRIBUTION OF PLANETARY-SCALE ATMOSPHERIC WAVE AMPLITUDE

SUTERA, Alfonso
1986

Abstract

The statistical properties of a measure of planetary-scale wave activity are investigated in a 16 winter NMC dataset. The probability density distribution of the wavenumber 2 to 4 amplitude is found to be bimodal, confirming earlier results from a smaller dataset. Partitioning the data based on the density estimation reveals 2 statistical flow regimes in physical space. One corresponds to an amplified planetary-scale wave pattern and the other to a predominantly zonal flow. Both regimes exhibit a baroclinic vertical structure but the difference between them is equivalent barotropic. These differences extend through the depth of the troposphere and appear to be of hemispheric extent
1986
-
01 Pubblicazione su rivista::01a Articolo in rivista
ON THE PROBABILITY DENSITY DISTRIBUTION OF PLANETARY-SCALE ATMOSPHERIC WAVE AMPLITUDE / Hansen, Ar; Sutera, Alfonso. - In: JOURNAL OF THE ATMOSPHERIC SCIENCES. - ISSN 0022-4928. - STAMPA. - 43:24(1986), pp. 3250-3265.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/615
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