Articles | Volume 22, issue 2
https://doi.org/10.5194/npg-22-157-2015
https://doi.org/10.5194/npg-22-157-2015
Research article
 | 
10 Mar 2015
Research article |  | 10 Mar 2015

Evaluation of empirical mode decomposition for quantifying multi-decadal variations and acceleration in sea level records

D. P. Chambers

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Don Chambers on behalf of the Authors (02 Feb 2015)  Author's response 
ED: Publish subject to minor revisions (further review by Editor) (08 Feb 2015) by Douglas Maraun
AR by Don Chambers on behalf of the Authors (17 Feb 2015)
ED: Publish as is (18 Feb 2015) by Douglas Maraun
AR by Don Chambers on behalf of the Authors (19 Feb 2015)
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Short summary
The ability of empirical mode decomposition (EMD) to extract multi-decadal variability from sea level records is tested using three simulations, based on sinusoidal oscillations and climate indices. In all cases, the longest-period modes are significantly distorted, with incorrect amplitudes and phases. This affects the estimated acceleration computed from the longest periodic IMF. Additionally, in all cases, extra low-frequency modes uncorrelated with the prescribed variability are found.