Identifying periodic components in atmospheric data using a family of minimum variance spectral estimators

Date
1995-10-01
Authors
Wikle, Christopher
Sherman, Peter
Sherman, Peter
Chen, Tsing-Chang
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Altmetrics
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Aerospace Engineering
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Aerospace Engineering
Abstract

This work describes the application of a recently developed signal processing technique for identifying periodic components in the presence of unknown colored noise. Specifically, the application of this technique to the identification of strongly periodic components in meteorological time series is examined. The technique is based on the unique convergence properties of the family of minimum variance (MV) spectral estimators. The MV convergence methodology and computational procedures are described and are illustrated with a theoretical example. The utility of this method to atmospheric signals is demonstrated with a 26-year (1964-1989) time series of 70-mb wind components at Truk Islands in the equatorial Pacific.

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This article is from Journal of Climate 8 (1995): 2352, doi: 10.1175/1520-0442(1995)008<2352:IPCIAD>2.0.CO;2. Posted with permission.

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