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Volume 9, issue 10 | Copyright
Geosci. Model Dev., 9, 3517-3531, 2016
https://doi.org/10.5194/gmd-9-3517-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Model description paper 30 Sep 2016

Model description paper | 30 Sep 2016

Astronomical component estimation (ACE v.1) by time-variant sinusoidal modeling

Matthias Sinnesael et al.
Data sets

Benthic foraminiferal stable isotope stratigraphy of site 846: 0–1.8 Ma (10.1594/PANGAEA.696444) A. C. Mix, J. Le, and N. J. Shackleton https://doi.org/10.2973/odp.proc.sr.138.160.1995

High – resolution multiproxy cyclostratigraphic analysis of environmental and climatic events across the Cretaceous-Paleogene boundary in the classic pelagic succession of Gubbio (Italy) (10.1594/PANGAEA.864450) M. Sinnesael, D. De Vleeschouwer, R. Coccioni, P. Claeys, F. Frontalini, L. Jovane, J. Savian, and A. Montanari https://doi.org/10.1130/2016.2524(09)

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Short summary
Classical spectral analysis often relies on methods based on (Fast) Fourier Transformation. This technique has no unique solution separating variations in amplitude and frequency. This drawback is circumvented by using a polynomial approach (ACE v.1 model) to estimate instantaneous amplitude and frequency in orbital components. The model is illustrated and validated using a synthetic insolation signal and tested on two case studies: a benthic δ18O record and a magnetic susceptibility record.
Classical spectral analysis often relies on methods based on (Fast) Fourier Transformation. This...
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