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Mann 2004
Mann, M.E. (2004). On smoothing potentially non-stationary climate time series. Geophysical Research Letters 31: doi: 10.1029/2004GL019569. issn: 0094-8276.

A simple approach to the smoothing of a potentially non-stationary time series is presented which provides an optimal choice among three alternative, readily motivated and easily implemented boundary constraints. This method is applied to the smoothing of the instrumental Northern Hemisphere (NH) annual mean and cold-season North Atlantic Oscillation (NAO) time series, yielding an objective estimate of the smoothed decadal-scale variations in these series including long-term trends.

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Abstract

Keywords
Meteorology and Atmospheric Dynamics, Climatology, Meteorology and Atmospheric Dynamics, Instruments and techniques, Oceanography, General, Instruments and techniques, Oceanography, Physical, Instruments and techniques
Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/
Publisher
American Geophysical Union
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