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

Sinnesael, Matthias; Zivanovic, Miroslav; De Vleeschouwer, David; Claeys, Philippe; Schoukens, Johan

doi:https://doi.org/10.5194/gmd-9-3517-2016

Articles | Volume 9, issue 10

https://doi.org/10.5194/gmd-9-3517-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/gmd-9-3517-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 10

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, Miroslav Zivanovic, David De Vleeschouwer, Philippe Claeys, and Johan Schoukens

Supplement

https://doi.org/10.5194/gmd-9-3517-2016-supplement

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)

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.